Method for producing a compound, ampoule, manufacturing device, compound and use of the compound

Abstract

The invention relates to a method for producing a connection, comprehensive: - Providing a first solid material in a first reservoir of an ampoule, - Providing a second solid material in a second reservoir of the ampoule, wherein the ampoule has a separating element which separates the first and second reservoirs impermeably for the two materials in the solid state, wherein the ampoule has a passage element which connects the first and second reservoirs permeable to the two materials in the liquid state, - heating the ampoule in such a way that the two materials are converted into a liquid state by melting, wherein the ampoule is arranged during melting in such a way that the passage element is arranged above an upper edge of the two materials in the reservoirs, - Rotating the ampoule so that the second liquid material flows from the second reservoir through the passage element into the first reservoir, wherein the first and second liquid materials in the first reservoir form the compound. The invention further relates to an ampoule, a manufacturing device, a compound and a use of the compound.

Description

The present invention relates to a method for preparing a compound, an ampoule, a preparation device, a compound and a use of the compound.In the synthesis of cadmium telluride (CdTe), pieces, in particular fragments, of cadmium (Cd) and tellurium (Te) of defined size are often filled in alternating layers into a vessel, in particular an ampoule. The pieces of defined size of Cd and Te can be provided, for example, by machining, in particular crushing, corresponding Cd and Te raw material with a hammer. The alternating layers of Cd and Te are intended to ensure that the material is uniformly distributed in the ampoule before the start of the synthesis reaction. Persons in contact with Cd and Te are often disadvantageous here, for example when breaking up the raw material and / or when filling the pieces into the ampoule. This results in the risk of contamination entering the ampoule. Further, the preparation often requires a long preparation time.Thereafter, the vial is heated in an oven until the Cd and Te melt and react to form CdTe. In this highly exothermic reaction of Cd and Te to CdTe, a large amount of heat is released. Damage to the furnace frequently occurs in this case.Frequently, a spatial and / or temporal temperature profile is preset in the furnace for the process control of the CdTe synthesis, so that the reaction can proceed in a controlled manner along a longitudinal axis of the ampoule. This can prevent too much heat from being released at once and prevent the synthesis reaction from occurring simultaneously in an uncontrolled manner in the entire ampoule. This process procedure makes it possible to control the temperature profile during the heating of the ampoule.It is therefore the object of the present invention to enable a controlled production of CdTe materials.The object is achieved according to the invention by the subject matter of the independent claims. Advantageous embodiments with expedient refinements are the subject matter of the dependent claims. Regardless of the grammatical sex of a certain term, individuals with male, female or other sex identity are included.In a first aspect, the invention relates to a method for producing a compound. In a first step, a first solid material is provided in a first reservoir of an ampoule. In a further step, a second solid material is provided in a second reservoir of the ampoule. The ampoule has a separating element which separates the first and the second reservoir from one another in a tight manner for the two materials in the solid state. Furthermore, the ampoule has a passage element which connects the first and the second reservoir to the two materials in a permeable manner in the liquid state. In a further step, the ampoule is heated in such a way that the two materials are converted into a liquid state by melting. During melting, the ampoule is arranged such that the passage element is arranged above an upper edge of the two materials in the reservoirs. In a further step, the ampoule is rotated in such a way that the second liquid material flows from the second reservoir through the passage element, in particular slowly, into the first reservoir. In this case, the first and the second liquid material form the connection in the first reservoir.The first material can be provided in the first reservoir of the ampoule in a solid state, in particular in a solid aggregate state. The provision of the first solid material can comprise introducing, in particular filling and / or inserting and / or pouring, the first solid material into the first reservoir of the ampoule.The second material can be provided in the second reservoir of the ampoule in a solid state, in particular in a solid aggregate state. The provision of the second solid material can comprise introducing, in particular filling and / or inserting and / or pouring, the second solid material into the second reservoir of the ampoule.The first and second solid materials may be provided as powders and / or granules and / or fragments and / or pellets and / or bars and / or blocks in the respective reservoir of the ampoule.The first and second solid materials are different from each other, in particular in terms of their chemical composition. In particular, the first and second solid materials may at least partially comprise different chemical elements.The ampoule can have a wall which completely surrounds, in particular encloses, the first and the second reservoir after the provision of the first and second solid materials. The reservoirs of the ampoule can each denote a cavity within the ampoule, in particular within the surrounding wall. Alternatively, the ampoule can be formed from two partial ampoules, each of which comprises one of the two reservoirs. The two reservoirs of the ampoule can be of identical or different design with regard to geometric features, for example a volume and / or a shape. The two reservoirs can be arranged adjacent to one another, in particular along a longitudinal axis of the ampoule with an interface between the reservoirs transversely to the longitudinal axis of the ampoule.The ampoule further comprises a separating element which separates the first and the second reservoir from one another in an impermeable manner for the two materials in the solid state, in particular the first solid material and the second solid material. The separating element can be designed, for example, as a separating wall and / or separating cap, in particular a quartz cap. In this case, the separating element can adjoin the surrounding wall of the ampoule, in particular flush. The separating element can comprise the same material as the wall of the ampoule. In particular, the separating element can be designed to mechanically prevent the first and the second solid material from contacting and intermixing with one another.The ampoule further comprises a passage element. The passage element is designed to connect the first and the second reservoir to one another in a permeable manner for the two materials in the liquid state, in particular for the first material and the second material in each case in the liquid state. In particular, the passage element can be designed to connect the two reservoirs to one another in a permeable manner for the two materials only in the liquid and gaseous state, in particular not in the solid state. Alternatively, the passage element can be designed to connect the two reservoirs to one another in a permeable manner for the two materials in the solid state, wherein contacting of the two solid materials is prevented on account of an arrangement of the passage element above an upper edge of the two materials in the reservoirs before the beginning of the rotation of the ampoule. Thus, the passage element can provide a connection between the two reservoirs of the ampoule which is permeable for the two materials in the liquid state, in particular not in the solid state.Advantageously, the ampoule can be heated by providing a heat source, for example by placing the ampoule on or in an oven. The heating of the ampoule can take place in total or zone by zone. Advantageously, the ampoule can be heated to a temperature, in particular a core temperature within the two reservoirs, above a highest melting point of the two materials. As a result, the two solid materials within the respective reservoirs can be converted into the liquid state by melting, in particular liquefied.Advantageously, during the melting, in particular until the two materials are completely melted in the reservoirs, the ampoule is arranged, in particular positioned, in such a way that the passage element is arranged above an upper edge of the two materials in the reservoirs. The two materials can each have a liquid surface within the respective reservoirs in the liquid state. Advantageously, the ampoule is arranged during melting such that the passage element, for example an opening in the separating element between the two reservoirs, is arranged completely above the two liquid surfaces. This advantageously ensures that no premature contacting and / or mixing of the two materials can take place in the liquid state. In particular, the two materials are still separated from one another by the separating element during melting.Advantageously, the ampoule can be rotated after melting, in particular after complete melting of the two materials. The ampoule can be rotated stepwise or continuously. Advantageously, the ampoule is rotated in such a way that the passage element is arranged during the rotation at least partially, in particular completely, below the upper edge of the two materials in the liquid state, in particular below the liquid surface of the second material. The ampoule can advantageously be rotated about an axis of rotation which runs perpendicular or parallel to a longitudinal axis of the ampoule. As a result, the second liquid material can flow from the second reservoir through the passage element into the first reservoir.After the second liquid material flows into the first reservoir, the first and second materials may react to the compound in the first reservoir.The proposed method can advantageously enable the connection to be produced with minimal personnel contact and risk of contamination. The two solid materials need not be hand-tapped as before. In addition, the use of larger pieces of material of the first and second solid materials is conceivable, as a result of which smaller free surfaces are made possible. This advantageously allows oxidation of surfaces of the first and second solid materials during storage to be reduced. Since the reaction can be controlled by the rotation, larger initial masses of the first and second solid materials would also be conceivable. In addition, the method can advantageously allow a controlled reaction between the two liquid materials during the rotation. In particular, a rotational speed of the ampoule can control an intensity of the reaction between the first and the second liquid material. By controlled, in particular slow, rotation of the ampoule, only a small amount of the first liquid material can always react with the second liquid material. An uncontrolled temperature increase can be advantageously avoided. Furthermore, a thermal shock and / or damage to a heating element, in particular a furnace, for heating the ampoule can be prevented.In a further advantageous embodiment of the proposed method, the first material can comprise cadmium and the second material tellurium. Alternatively, the first material may comprise tellurium and the second material may comprise cadmium.Advantageously, the reservoir into which cadmium is provided can be heated to a temperature of at least 321° C. Furthermore, the reservoir into which tellurium is provided can be heated to a temperature of at least 450° C. This advantageously ensures that the two materials are converted into a liquid state by melting.Advantageously, a CdTe material can be provided as the connection by means of the proposed embodiment, for example comprising CdTe. The first and / or second material can additionally comprise further substances, for example zinc (Zn), selenium (Sn) and / or manganese (Mn). In this respect, the compound can correspondingly comprise Cd, Te and one or more further substances.In a further advantageous embodiment of the proposed method, the passage element can be designed as an opening in the separating element.The passage element can be formed as an opening, in particular a plurality of openings, in the separating element, in particular the separating wall or the separating cap, which connects the first and the second reservoir. The opening can be provided, for example, by drilling or a subtractive manufacturing technique in the separating element, in particular the separating wall or separating cap. Advantageously, the opening can be arranged closer to the surrounding wall of the ampoule than to a geometric center point and / or a geometric center axis, in particular the longitudinal axis, of the ampoule. Due to its geometry, in particular a cross-sectional area and / or contour and / or shape and / or a diameter, the opening can be impermeable to the two materials in the solid state, in particular to the first solid material and the second solid material. Alternatively, the opening can be permeable for the two materials also in the solid state, wherein contacting of the two materials in the solid state is prevented by arranging the opening above the upper edge of the two materials in the solid state before the beginning of the rotation. Furthermore, the opening can be permeable to the two materials in the liquid state, in particular to the first liquid material and the second liquid material. Advantageously, a lower edge of the opening can be arranged above the upper edge of the two materials during heating. Further, during the rotating, a bottom edge of the opening may be disposed below the top edge of the second liquid material.The proposed embodiment can advantageously ensure that the second material can flow through the opening into the first reservoir and react with the first liquid material to form the connection only after it has been liquefied.In a further advantageous embodiment of the proposed method, the passage element can consist of a material having a melting point equal to or below a melting point of the second material. In this case, the passage element can melt when the ampoule is heated, such that an opening permeable for the second liquid material is formed in the separating element.The passage member may be made of a material having a melting point equal to or below the melting point of the second material. In particular, the passage element can consist of the second material. During the heating of the ampoule, the passage element can melt, in particular temporally before or simultaneously with the second material. As a result, an opening permeable to the second liquid material can be formed in the separating element, which opening connects the first and the second reservoir to one another. In this case, the passage element can form a plug in an opening of the separating element, which plug melts into the liquid state, in particular is transferred into the liquid state, upon melting of the second material, and releases the opening.The proposed embodiment can advantageously enable a temperature-controlled permeability of the separating element.In a further advantageous embodiment of the proposed method, the separating element can be introduced into the ampoule after the provision of the first or second solid material into the respective reservoir and before the provision of the respective other solid material into the associated reservoir.According to a first variant, the separating element can be introduced into the ampoule after the provision of the first solid material into the first reservoir and before the provision of the second solid material into the second reservoir. According to a second alternative variant, the separating element can be introduced into the ampoule after the provision of the second solid material into the second reservoir and before the provision of the first solid material into the first reservoir.Advantageously, the ampoule can have an opening before the method starts. In this case, the first or second solid material can be provided, in particular introduced, into the respective reservoir via the opening. Thereafter, the separating element can be introduced into the ampoule, in particular fastened in the ampoule. The separating element can be introduced via the opening of the ampoule. Furthermore, the introduction of the separating element can comprise fastening the separating element to the surrounding wall of the ampoule by means of a fastening means. The fastening means can comprise an adhesive, for example. Alternatively or additionally, the separating element can be welded and / or fused to the surrounding wall of the ampoule. After the introduction of the separating element into the ampoule, the respective other solid material can be provided, in particular introduced, into the associated reservoir of the ampoule. Thereafter, the opening of the ampoule can be closed.According to a further variant, a first partial ampoule can comprise the first reservoir and a second partial ampoule can comprise the second reservoir. Furthermore, the first partial ampoule or the second partial ampoule can comprise the passage element and / or the separating element. Alternatively, the passage element and / or the separating element can be inserted when the first and second partial ampoule are joined together to form the ampoule. The first and the second partial ampoule can advantageously be joined, in particular connected, after the filling of the respective solid material into the respective reservoir.The proposed embodiment can enable simple and low-contamination provision of the two solid materials in the respective reservoirs and the introduction of the separating element.In a further advantageous embodiment of the proposed method, the ampoule can be rotated as a function of a momentary amount of material in the first and / or second reservoir and / or a momentary temperature of the first and / or second material.Advantageously, during the heating and / or rotation of the ampoule, a momentary amount of material can be detected in the first and / or second reservoir. The detection of the instantaneous material quantity in the first and / or second reservoir can be effected by means of a material quantity sensor, for example a weight sensor and / or an optical sensor and / or electromagnetic sensor, which is designed to detect the instantaneous material quantity in the respective reservoirs. Alternatively, the instantaneous material amount may be determined based on a prior information on the first and second materials initially provided in the respective reservoirs and an information on an instantaneous rotation angle of the ampoule during heating.Further, during heating and / or rotating of the vial, a current temperature of the first and / or second material may be detected. The detection of the instantaneous temperature of the first and / or second material can be effected by means of a temperature sensor. Advantageously, the instantaneous temperature of the ampoule can be detected zone by zone.Advantageously, the rotating, in particular a rotational speed and / or a rotational angle, of the ampoule can take place as a function of the instantaneous amount of material in the first and / or second reservoir and / or the instantaneous temperature of the first and / or second material. In particular, the rotation can be controlled as a function of the instantaneous amount of material in the first and / or second reservoir and / or the instantaneous temperature of the first and / or second material.The proposed embodiment can advantageously enable a temperature-sensitive and / or quantity-sensitive control of the rotation, in particular of the reaction of the first and second liquid materials to form the compound. In particular, a heat per unit time can be determined on the basis of the detected respective instantaneous temperature and / or material quantity. The rotation can advantageously be controlled as a function of the respective instantaneous temperature and / or material quantity in such a way that a temperature increase, in particular an exceeding of a predefined maximum temperature, is avoided.In a further advantageous embodiment of the proposed method, the ampoule can be heated zone by zone in such a way that the solid materials provided in the reservoirs are converted into a liquid state by melting.Advantageously, the ampoule can be heated zone by zone, in particular in sections. At least two different zones, in particular sections, of the ampoule can be heated differently at least temporarily. In particular, at least the two reservoirs of the ampoule can be heated differently at least temporarily. If the two solid materials have different melting temperatures, the reservoirs can advantageously each be heated to at most a required minimum temperature for melting the two solid materials, in particular the respective melting temperatures.Advantageously, the zone-by-zone heating of the ampoule can take place simultaneously, in particular by means of a plurality of heat sources. For example, one of the two reservoirs, which contains a material comprising Cd, can be heated, in particular selectively, to a temperature of at least 321° C. Furthermore, one of the two reservoirs, which contains a material comprising Te, can be heated, in particular selectively, to a temperature of at least 450° C.By means of the zone-by-zone heating of the ampoule, it is advantageously possible to avoid an increase in temperature, in particular an exceeding of a predefined maximum temperature.In a further advantageous embodiment of the proposed method, after the formation of the compound of the first and second liquid materials in the first reservoir, a further heating of the ampoule to a temperature above a melting point of the compound can take place. Furthermore, the connection can be solidified by cooling the ampoule, in particular directionally solidified.If a CdTe material is formed as the compound from the two materials comprising Cd or Te, the ampoule can advantageously be heated during the further heating to a temperature of at least 1100° C., in particular to a temperature between 1100 and 1200° C. Advantageously, the ampoule can be positioned during the directed solidification of the compound such that a longitudinal axis of the ampoule is oriented vertically or at an acute angle to a vertical.The cooling of the ampoule can comprise reducing or switching off a supply of heat by the at least one heat source, in particular continuously or stepwise. In particular, the ampoule can be cooled zone by zone along the longitudinal axis of the ampoule.The proposed embodiment can advantageously enable the compound to solidify to form a crystal structure, in particular a polycrystal.In a further advantageous embodiment of the proposed method, the ampoule can be rotated from an initial positioning into a target positioning. In this case, a longitudinal axis of the ampoule can be oriented vertically or at an acute angle to a vertical in the target positioning.Advantageously, the ampoule, in particular a cavity comprising the first and second reservoirs within a wall of the ampoule, can have a substantially ellipsoidal shape. A longitudinal axis of the ampoule can thereby denote a spatial direction with respect to the ampoule, along which the ampoule has a largest spatial extent, for example a symmetry and / or rotation axis of the ellipsoid.The ampoule can advantageously be arranged before the start of the method, in particular before the start of the rotation, in an initial positioning, in particular an initial spatial position and / or orientation and / or orientation. During the rotation, the ampoule can be rotated from the initial positioning into a target positioning. The target positioning can specify a spatial target position and / or target orientation and / or target orientation for the ampoule. Advantageously, the aiming position for the longitudinal axis of the ampoule can preset a vertical arrangement or an arrangement at an acute angle to a vertical. The ampoule can advantageously be arranged in the target positioning after rotation. In this case, the longitudinal axis of the ampoule after rotation can be arranged vertically or at an acute angle to a vertical.Due to the substantially vertical alignment of the longitudinal axis of the ampoule in the target positioning, a directed solidification of the connection parallel to the longitudinal axis of the ampoule can advantageously be made possible.In a further advantageous embodiment of the proposed method, the ampoule can be rotated from an initial positioning into a target positioning. In this case, a longitudinal axis of the ampoule in the initial positioning can be aligned horizontally or at an acute angle to a horizontal.The ampoule can advantageously be arranged before the start of the method, in particular before the start of the rotation, in the initial positioning, in particular an initial spatial position and / or orientation and / or orientation. Advantageously, the initial positioning for the longitudinal axis of the ampoule can specify a horizontal arrangement or an arrangement at an acute angle, in particular an angle of 3 degrees, with respect to a horizontal. In this case, the longitudinal axis of the ampoule can be arranged horizontally or at an acute angle to a horizontal before rotating.The proposed embodiment can advantageously ensure, in particular, mechanical separation of the first and second materials in the liquid state in the respective reservoirs before the beginning of the rotation of the ampoule.In a further advantageous embodiment of the proposed method, the ampoule can be subjected to an overpressure acting from the outside during the heating and / or rotation.Advantageously, the ampoule can be acted upon by means of a pressure element, for example a compressor, with the overpressure acting from the outside on the ampoule during the heating and / or rotation. The pressure element can be designed to provide the overpressure. In this case, the overpressure can be greater than an ambient pressure, in particular a normal air pressure, in an external environment of the ampoule before the application. Advantageously, the overpressure provided by means of the pressure element can reduce a pressure difference between a pressure in the interior of the ampoule, in particular within the first and / or second reservoir, during the heating and / or rotation. This advantageously makes it possible to prevent pressure-induced damage to the ampoule, in particular breakage and / or bursting of the ampoule during heating and / or rotation.In a second aspect, the invention relates to an ampoule comprising a first and a second reservoir, a separating element and a passage element. The first reservoir is designed to hold a first solid material. Furthermore, the second reservoir is designed to hold a second solid material. Further, the separator separates the first and second reservoirs from each other in a solid state impermeable to the two materials. In addition, the passage element connects the first and the second reservoir in a permeable manner for the two materials in the liquid state.The ampoule can be heated in such a way that the two materials can be transferred into the liquid state by melting. In addition, the ampoule can be arranged during melting in such a way that the passage element is arranged above an upper edge of the two materials in the reservoirs. Furthermore, the ampoule is rotatable in such a way that the second liquid material flows from the second reservoir through the passage element into the first reservoir.The advantages of the proposed ampoule substantially correspond to the advantages of the proposed method for producing a compound. Features, advantages or alternative embodiments mentioned here can likewise also be transferred to the other claimed subject matters and vice versa.In a further advantageous embodiment of the ampoule, the passage element can be designed as an opening in the separating element.In a further advantageous embodiment of the ampoule, the passage element can consist of a material having a melting point equal to or below a melting point of the second material. In this case, the passage element can be configured to melt when the ampoule is heated to liquify the first and second materials, such that an opening permeable to the second liquid material is formed in the separating element.In a further advantageous embodiment of the ampoule, the ampoule can consist of a material, in particular quartz glass, which has a melting point above a melting point of tellurium, in particular above 450° C.The proposed embodiment can advantageously ensure that the ampoule resists mechanically and chemically the heating of the two materials in the respective reservoirs and the reaction of the two liquid materials to form the compound.In a third aspect, the invention relates to a production device which comprises a proposed ampoule, a heating element and a rotation element. The production device is designed to carry out a proposed method for producing a connection. The heating element is designed for heating the ampoule such that the two materials can be converted into a liquid state by melting. Furthermore, the rotation element is configured to hold and rotate the ampoule.The advantages of the proposed manufacturing device essentially correspond to the advantages of the proposed method for manufacturing a compound and the proposed ampoule. Features, advantages or alternative embodiments mentioned here can likewise also be transferred to the other claimed subject matters and vice versa.The heating element can comprise at least one heat source, in particular a plurality of heat sources. The at least one heat source can comprise, for example, an electrical heating element, in particular an incandescent filament, and / or a gas burner. For example, the heating element can be designed as a furnace which can at least partially, in particular completely, accommodate the ampoule in a heatable cavity.The rotation element can comprise a holding element for holding the ampoule, for example a stand and / or a holding clip. In particular, the holding element can be designed to hold the ampoule within the heating element. In an operating state of the production device, the ampoule can be arranged at least partially, in particular completely, within the heating element. The holding element can be formed in addition to holding the heating element. Furthermore, the rotational element can comprise at least one rotational joint for rotating the holding element about a predefined rotational axis. In addition, the rotation element can comprise a motor, in particular an electric motor, for semi-automatic or automatic rotation of the holding element.According to a first embodiment, the rotation element can be configured to rotate the ampoule within the heating element, in particular with respect to the heating element. Alternatively, the rotation element can be configured to rotate an arrangement comprising the ampoule and the heating element. In particular, the rotation element can be configured to rotate the oven with the ampoule arranged therein in an operating state of the production device.In a further advantageous embodiment of the production device, the production device can furthermore comprise a sensor element which is designed to detect a momentary amount of material in the first and / or second reservoir and / or a momentary temperature of the first and / or second material. Furthermore, the rotation element can be designed to control the rotation of the ampoule as a function of the instantaneous amount of material in the first and / or second reservoir and / or the instantaneous temperature of the first and / or second material.In a further advantageous embodiment of the production device, the production device can furthermore comprise a pressure element which is designed to apply an overpressure acting from the outside to the ampoule during the heating and / or rotation.In a fourth aspect, the invention relates to a compound obtainable by a proposed method for producing a compound.The advantages of the proposed connection substantially correspond to the advantages of the proposed method for producing a connection. Features, advantages or alternative embodiments mentioned here can likewise also be transferred to the other claimed subject matters and vice versa.In a fifth aspect, the invention relates to a use of the proposed compound in an X-ray detector.The X-ray detector can be configured to detect X-rays emitted by an X-ray source. The X-ray detector may comprise a direct-converting (semiconductor) light-emitting layer. In this case, the X-ray detector layer can comprise the proposed compound, for example comprising CdTe, CdCdTe, CdTeSe, CdCdTeSe or CdCdTe as semiconductor material. The X-ray detector layer can also comprise a layer with analog-to-digital converters, on which the X-ray detector layer is applied, wherein the A / D converter layer can be realized in one or more ASICs.The advantages of the proposed use substantially correspond to the advantages of the proposed connection. Features, advantages or alternative embodiments mentioned here can likewise also be transferred to the other claimed subject matters and vice versa.Exemplary embodiments of the invention are illustrated in the drawings and are described in more detail below. In different figures, the same reference numerals are used for the same features. The following are shown: FIGS. 1 and 2 show schematic representations of various embodiments of a proposed method for producing a connection, FIGS. 3 to 6 are schematic representations of a proposed ampoule in different phases of the proposed method for producing a compound, FIGS. 7 and 8 show schematic representations of various embodiments of a proposed production device, FIG. 9 shows a schematic representation of a CT device with an X-ray detector comprising a proposed connection.FIG. 1 shows a schematic illustration of an advantageous embodiment of a proposed method for producing a compound. In a first step, a first solid material may be provided in a first reservoir of an ampoule PROV-M1. In a further step, a second solid material may be provided in a second reservoir of the vial PROV-M2. The second solid material may be different from the first solid material. Furthermore, the ampoule can have a separating element which separates the first and the second reservoir from one another in a tight manner for the two materials in a solid state. In addition, the ampoule can have a passage element which connects the first and the second reservoir to the two materials in a permeable manner in the liquid state. In a further step, the ampoule can be heated EW in such a way that the two materials are converted into a liquid state by melting. During melting, the ampoule can be arranged such that the passage element is arranged above an upper edge of the two materials in the reservoirs. In a further step, the ampoule can be rotated ROT in such a way that the second liquid material flows from the second reservoir through the passage element into the first reservoir. In this case, the first and the second liquid material in the first reservoir can form the connection.Advantageously, the ampoule can be rotated ROT from an initial positioning to a target positioning. In this case, a longitudinal axis of the ampoule can be oriented vertically or at an acute angle to a vertical in the target positioning. In addition, a longitudinal axis of the ampoule in the initial positioning can be aligned horizontally or at an acute angle to a horizontal.Advantageously, the first material may comprise cadmium and the second material may comprise tellurium or the first material may comprise tellurium and the second material may comprise cadmium.Advantageously, the passage element can be formed as an opening in the separating element. Alternatively, the passage member may be made of a material having a melting point equal to or below a melting point of the second material. In this case, the passage element can melt when the ampoule is heated, such that an opening permeable for the second liquid material is formed in the separating element.Advantageously, the separating element can be introduced into the ampoule after the provision of the first solid material into the first reservoir and before the provision of the second solid material into the second solid reservoir. Advantageously, the ampoule can be rotated as a function of a momentary amount of material in the first and / or second reservoir and / or a momentary temperature of the first and / or second material. Furthermore, the ampoule can be heated zone by zone in such a way that the solid materials provided in the reservoirs are converted into the liquid state by melting.Advantageously, the ampoule can be subjected to an overpressure acting from the outside during the heating EW and / or rotation ROT.FIG. 2 shows a schematic illustration of a further advantageous embodiment of a proposed method for producing a compound. After the formation of the connection of the first and second liquid materials in the first reservoir, a further heating EW 2 of the ampoule to a temperature above a melting point of the connection can take place. After this, the compound can be solidified by cooling the ampoule, in particular in a directed manner, GE.Figures 3 to 6 show schematic representations of a proposed ampoule A in different phases of the proposed method for producing a compound.The ampoule A can comprise a first and a second reservoir R 1 and R 2, a separating element TE and a passage element DE. Furthermore, the first reservoir R 1 can be designed to hold the first solid material M 1.S. In addition, the second reservoir R 2 can be designed to hold the second solid material M 2.S. In this case, the separating element TE can separate the first and the second reservoir R 1 and R 2 from one another in a manner impermeable to the two materials in the solid state M 1.S and M 2.S. The passage element DE can connect the first and second reservoirs R 1 and R 2 in a permeable manner for the two materials in the liquid state M 1.F and M 2.F. The ampoule A can be heatable in such a way that the two materials M1.S and M2.S can be converted into the liquid state by melting. Furthermore, the ampoule A can be arranged during melting in such a way that the passage element DE is arranged above an upper edge OK of the two materials M 1.F and M 2.F in the reservoirs R 1 and R 2. Furthermore, the ampoule A can be rotatable in such a way that the second liquid material M 2.F flows from the second reservoir R 2 through the passage element DE into the first reservoir R 1.Advantageously, the passage element DE can be designed as an opening in the separating element TE. The ampoule can consist of a material, in particular quartz glass, which has a melting point above a melting point of tellurium.In the phase of the proposed method schematically illustrated in FIG. 3, the two materials M 1.S and M 2.S may have been provided in the respective reservoirs R 1 and R 2 of the ampoule A PROV-M 1, PROV-M 2 in the solid state. Furthermore, the longitudinal axis L of the ampoule A can be oriented horizontally or at an acute angle to a horizontal in the initial positioning.In the phase of the proposed method schematically illustrated in FIG. 4, the ampoule A can have been heated EW in such a way that the two materials M 1.F and M 2.F have been converted into a liquid state by melting.In the phases of the proposed method schematically illustrated in FIGS. 5 and 6, the ampoule A can be rotated in such a way, in particular about an axis of rotation perpendicular to its longitudinal axis L, that the second liquid material M 2.F flows from the second reservoir R 2 through the passage element DE into the first reservoir R 1. Moreover, it is illustrated in FIG. 6 that the first and the second liquid materials M 1.F and M 2.F in the first reservoir R 1 can react to form the compound V.FIG. 7 shows a schematic representation of an advantageous embodiment of a proposed production device. The manufacturing apparatus may include an ampoule A, a heating element HE and a rotation element RE. Advantageously, the production device can be designed to carry out a method for producing a connection V. The heating element HE can be designed for heating EW of the ampoule A such that the two materials M 1.S and M 2.S can be converted into a liquid state by melting. In addition, the rotation member RE may be configured to hold and rotate the vial A.The manufacturing apparatus may further include a processing unit PRVS. Advantageously, the production device can further comprise a sensor element S, which is designed to detect a momentary amount of material in the first and / or second reservoir R 1, R 2 and / or a momentary temperature of the first and / or second material. The processing unit PRVS can be configured to receive a signal SIG.S from the sensor element having information about the respective instantaneous temperature and / or material quantity detected. Furthermore, the rotation element RE can be designed to control the rotation RED of the ampoule A as a function of the instantaneous amount of material in the first and / or second reservoir R 1, R 2 and / or the instantaneous temperature of the first and / or second material. For this purpose, the processing unit PRVS may be configured to provide a corresponding signal SIG.RE to the rotation element RE.The heating element HE can comprise at least one heat source, in particular a plurality of heat sources. In particular, the heating element HE can comprise two heat sources HE 1 and HE 2 which are configured for zone-by-zone heating of the first and second reservoirs R 1 and R 2. The processing unit PRVS may be configured to provide a signal SIG.HE 1 and SIG.HE 2 to the heat sources HE 1 and HE 2, respectively, for controlling the heating EW of the vial A.Advantageously, the production device can further comprise a pressure element PE, which is designed to apply an overpressure acting from the outside to the ampoule A during the heating EW and / or rotation RED. The processing unit PRVS may be configured to provide a signal SIG.PE for controlling the overpressure to the pressure element PE.The rotation element RE can comprise a holding element for holding the ampoule A, for example a stand and / or a holding clip. In particular, the holding element for holding the ampoule A can be formed within the heating element HE. The ampoule A can be arranged at least partially, in particular completely, within the heating element HE in an operating state of the production device. In addition, the rotation element can comprise a motor, in particular an electric motor, for semi-automatic or automatic rotation of the ampoule A. Advantageously, the rotation element RE can be configured to rotate the ampoule A within the heating element HE, in particular with respect to the heating element HE.FIG. 8 shows a schematic illustration of a further advantageous embodiment of a proposed production apparatus. The holding element of the rotation element RE can be formed in addition to holding the heating element HE. Furthermore, the rotation element RE can be configured to rotate an arrangement comprising the ampoule A and the heating element HE.FIG. 9 shows a schematic representation of an advantageous embodiment of a medical CT device 33, comprising an X-ray source 37, an X-ray detector D and a processing unit PRVS. In this case, the X-ray source 37 and the X-ray detector D can be arranged opposite one another. The X-ray source 37 can be configured to expose the X-ray detector D to X-ray radiation along an X-ray incident direction. The X-ray detector D may comprise a direct-converting (semiconductor) X-ray detector layer. In this case, the X-ray detector layer can comprise the proposed compound V, for example comprising CdTe, CdCdTe, CdTeSe, CdCdTeSe or CdCdTe as semiconductor material. The X-ray detector layer can also comprise a layer with analog-to-digital converters, on which the X-ray detector layer is applied, wherein the A / D converter layer can be realized in one or more ASICs.The CT apparatus 33 can also comprise a gantry 32 with a rotor 35. The X-ray source 37 and the X-ray detector D can be arranged on the rotor 35 in a defined arrangement, in particular integrated into the rotor 35 or fastened to the rotor 35. The rotor 35 can be mounted rotatably about an axis of rotation 43. An examination object 39 to be imaged can be mounted on a patient couch 41 and can be moved through the gantry 32 along the rotational axis 43. The processing unit PRVS can be used to control the CT device 33 and to calculate sectional images or volume images of the examination object 39. An input device 47, for example a keyboard, and an output device 49, for example a screen and / or display, can be connected to the processing unit PRVS, in particular coupled by signal technology. The input device 47 can advantageously be integrated into the output device 49, for example in the case of an, in particular resistive and / or capacitive, input display.The schematic representations contained in the described figures do not depict any scale or size relationships.Finally, it is pointed out once again that the methods described in detail above and the devices illustrated are merely exemplary embodiments which can be modified in a wide variety of ways by the person skilled in the art without departing from the scope of the invention. Furthermore, the use of the indefinite article "a" or "an" does not exclude that the features in question can also be present multiple times. Likewise, the terms "unit" and "element" do not exclude that the components in question consist of a plurality of interacting part-components, which may optionally also be spatially distributed.The expression "based on" can be understood in the context of the present application in particular in the sense of the expression "using". In particular, a formulation that is created (alternatively: determined, determined, etc.) according to a first feature based on a second feature does not exclude that the first feature can be created (alternatively: determined, determined, etc.) based on a third feature.

Claims

A method for preparing a compound (V) comprising: - providing (PROV-M1) a first solid material (M1.S) in a first reservoir (R1) of an ampoule (A), - providing (PROV-M2) a second solid material (M2.S) in a second reservoir (R2) of the ampoule (A), wherein the second solid material (M2.S) is different from the first solid material (M1.S), wherein the ampoule (A) has a separating element (TE) which separates the first and the second reservoir (R1, R2) from one another in an impermeable manner for the two materials in the solid state (M1.S, M2.S), wherein the ampoule (A) has a passage element (DE) which connects the first and the second reservoir (R1, R2) to the two materials in the liquid state (M1.F, M2.F) in a permeable manner, - heating (EW) the ampoule (A) in such a way that the two materials are converted into a liquid state (M1.F, M2.F) by melting, wherein the ampoule (A) is arranged during the melting in such a way that the passage element (DE) is arranged above an upper edge of the two materials (M1.F, M2.F) in the reservoirs (R1, R2), - rotating (RED) the ampoule, the second liquid material (M2.F) flowing from the second reservoir (R2) through the passage element (DE) into the first reservoir (R1), wherein the first and the second liquid material (M1.F, M2.F) form the connection (V) in the first reservoir (R1).The method of claim 1, wherein the first material comprises cadmium and the second material comprises tellurium, or wherein the first material comprises tellurium and the second material comprises cadmium.Method according to Claim 1 or 2, wherein the passage element (DE) is formed as an opening in the separating element (TE).Method according to claim 1 or 2, wherein the passage element (DE) consists of a material having a melting point equal to or below a melting point of the second material, wherein the passage element (DE) melts on heating (EW) the ampoule (A) such that an opening permeable for the second liquid material (M2.F) is formed in the separating element (TE).Method according to one of the preceding claims, wherein the separating element (TE) is introduced into the ampoule (A) after the provision (PROV-M1) of the first solid material (M1.F) into the first reservoir (R1) and before the provision (PROV-M2) of the second solid material (M2.F) into the second reservoir (R2).Method according to one of the preceding claims, wherein the rotating (RED) of the ampoule (A) takes place as a function of a momentary amount of material in the first and / or second reservoir (R1, R2) and / or a momentary temperature of the first and / or second material.Method according to one of the preceding claims, wherein the ampoule (A) is heated (EW) zone by zone in such a way that the solid materials (M1.S, M2.F) provided in the reservoirs (R1, R2) are converted into the liquid state by melting.Method according to one of the preceding claims, wherein after the formation of the compound (V) of the first and second liquid materials (M1.F, M2.F) in the first reservoir (R1), a further heating (EW2) of the ampoule (A) to a temperature above a melting point of the compound (V) takes place, wherein the compound (V) is solidified (GE), in particular is directionally solidified, by cooling the ampoule.Method according to one of the preceding claims, wherein the ampoule (A) is rotated (ROT) from an initial positioning to a target positioning, wherein a longitudinal axis (L) of the ampoule (A) is oriented vertically or at an acute angle to a vertical in the target positioning.Method according to one of the preceding claims, wherein the ampoule (A) is rotated (ROT) from an initial positioning to a target positioning, wherein a longitudinal axis (L) of the ampoule (A) is oriented horizontally or at an acute angle to a horizontal in the initial positioning.Method according to one of the preceding claims, wherein the ampoule (A) is subjected to an overpressure acting from the outside during the heating (EW) and / or rotation (ROT).Ampoule (A) comprising a first and a second reservoir (R1, R2), a separating element (TE) and a passage element (DE), wherein the first reservoir (R1) is configured to accommodate a first solid material (M1.S), wherein the second reservoir (R2) is configured to accommodate a second solid material (M2.S), wherein the separating element (TE) separates the first and the second reservoir (R1, R2) from one another in a impermeable manner for the two materials in the solid state (M1.S, M2.S), wherein the passage element (DE) connects the first and the second reservoir (R1, R2) in a permeable manner for the two materials in the liquid state (M1.F, M2.F), wherein the ampoule (A) is heatable (EW) in such a way that the two materials can be transferred into the liquid state by melting, wherein the ampoule (A) is arrangeable during melting in such a way that the passage element (DE) is arranged above an upper edge of the two materials (M1.F, M2.F) in the reservoirs (R1, R2), wherein the ampoule (A) is rotatable in such a way that the second liquid material (M2.F) flows from the second reservoir (R2), through the passage element (DE), into the first reservoir (R1).Ampoule (A) according to claim 12, wherein the passage element (DE) is formed as an opening in the separating element (TE).Ampoule according to claim 12, wherein the passage element (DE) consists of a material having a melting point equal to or below a melting point of the second material, wherein the passage element (DE) is configured to melt on heating (EW) the ampoule (A) to liquify the first and second materials, such that an opening permeable for the second liquid material (M2.F) is formed in the partition element (TE).Ampoule according to one of claims 12 to 14, wherein the ampoule (A) consists of a material, in particular quartz glass, which has a melting point above a melting point of tellurium.A manufacturing device comprising an ampoule according to any one of claims 12 to 15, a heating element (HE) and a rotation element (RE), wherein the manufacturing device is configured to carry out a method according to any one of claims 1 to 11, wherein the heating element (HE) is configured to heat (EW) the ampoule (A) such that the two materials can be transferred into a liquid state by melting, wherein the rotation element (RE) is configured to hold and rotate the ampoule (A).Production device according to claim 16, further comprising a sensor element (S) configured to sense an instantaneous amount of material in the first and / or second reservoir (R1, R2) and / or an instantaneous temperature of the first and / or second material, wherein the rotation element (RE) is configured to control the rotation (ROT) of the ampoule (A) depending on the instantaneous amount of material in the first and / or second reservoir (R1, R2) and / or the instantaneous temperature of the first and / or second material.Production device according to claim 16 or 17, further comprising a pressure element (DE) which is designed to subject the ampoule (A) to an overpressure acting from the outside during the heating (EW) and / or rotation (ROT).A compound (V) obtainable by a process according to any one of claims 1 to 11.Use of a compound (V) according to claim 19 in an X-ray detector (D).

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