Infrared transparent chalcogenide glass solution and use thereof

Abstract

The application discloses an infrared transparent chalcogenide glass solution which is prepared by dissolving chalcogenide glass and an organic amine solvent, wherein the organic amine solvent is an amine salt solvent containing a bifunctional group, a micro-network structure of the chalcogenide glass is formed by covalent bonding of chalcogen elements, modifiers and selectively added dopants, the chalcogen elements are S, Se or Te, the modifiers are at least one of Ge, Sb, In, Sn and As, and the dopants are at least one of Cd, Ag, CsCl, Bi, Cs and Cu, the micro-network structure of the chalcogenide glass is rich in MN a The glass solution has high transmittance and high refractive index in a wide infrared spectrum, has high light control capability, can be used for preparing an infrared liquid anamorphic lens, and is used in a middle and far infrared anamorphic imaging system, so that the imaging system is more integrated, and a new way is provided for the development of an infrared imaging system in the direction of light weight, small size and high performance.

Description

Technical Field

[0001] This invention relates to the field of infrared optical lens technology, specifically to an infrared transparent chalcogenide glass solution and its applications. Background Technology

[0002] Infrared optical imaging systems have wide applications in military, security monitoring, industrial manufacturing, medical, and environmental monitoring fields. Currently, infrared optical imaging systems are developing towards miniaturization, lightweight design, continuous large zoom capabilities, and low power consumption. Traditional zoom methods achieve zoom by changing the distance between optical lens groups. This method can achieve a wide zoom range, but due to the need for multiple fixed-focal-length lens combinations and mechanical moving components, relying on motors to drive the zoom process results in a complex system structure, large size, heavy weight, and high power consumption. Furthermore, uneven lens curvature causes light from different directions to focus at different positions, leading to deviations between the actual and ideal images, thus reducing image clarity and quality. To address these problems, anamorphic lenses have been proposed and demonstrated. Anamorphic lenses, derived from biomimetic technology inspired by the human eye, are lenses that change focal length by altering the radius of curvature or refractive index. Liquid deformable lenses are typically composed of a transparent elastic film and a fluid medium. The lens shape can be adjusted via external pumps, electromagnetic drives, dielectric elastomer drives, electrostatic drives, piezoelectric drives, etc., to control the focal length without requiring mechanical movement. Therefore, they offer advantages such as compact structure, flexible control, and no mechanical wear. This lens design is miniaturized and lightweight, and has proven to allow for continuous focal length adjustment over a wide range while effectively correcting optical aberrations from low to high order.

[0003] Liquid morphing lenses are mainly classified into three structural types: liquid crystal type, electrowetting type, and liquid-filled type. Liquid crystal type lenses have limited focusing range and response time due to the thickness of the liquid crystal layer, are prone to light loss, and exhibit large aberrations. Electrowetting type lenses are generally made of electrolyte solutions, which are susceptible to hydrolysis and performance degradation over time. Liquid-filled type lenses, on the other hand, have a simple structure, large aperture, fast response speed, and good image quality. Based on the liquid-filled morphing lens structure, piezoelectric actuation offers lower driving voltage, faster response speed, and miniaturization of the device, making it more suitable for driving liquid-filled morphing lenses.

[0004] Currently reported liquid distorting lenses primarily utilize liquid media such as conductive liquids like sodium chloride solution and pure organic salt solutions, and insulating liquids like silicone solutions, silicone oil, mixed solutions of aromatic halogenated hydrocarbons, water, and liquid crystals. While these liquid media exhibit excellent optical properties in the visible light band, their low transmittance or the presence of numerous strong vibrational absorption peaks in the infrared band limits their application in the infrared field, making them unsuitable for fabricating infrared liquid distorting lenses. Chalcogenide glasses, on the other hand, possess an ultra-wide infrared transmittance range (1–20 μm), good transmittance (>50%), and extremely high refractive index (2.0–3.8). Their composition can be continuously adjusted, and they are soluble in ammonium salts. However, the numerous and strong vibrational absorption peaks of organic ammonium salts in the infrared band result in very low and irregular infrared transmittance, making it difficult to prepare a broadband, transparent solution for infrared imaging. Therefore, leveraging the unique advantages of chalcogenide glasses, developing novel infrared-transparent liquids and applying them to distorting lenses for infrared imaging technology is of significant scientific importance. Summary of the Invention

[0005] The technical problem this invention aims to solve is to address the shortcomings of existing technologies by providing an infrared transparent chalcogenide glass solution with broad infrared spectrum, high transmittance, high refractive index, and good stability, as well as its applications. Infrared liquid deformable lenses prepared from this chalcogenide glass solution can be used in mid-to-far infrared deformable imaging systems, making the imaging system more integrated and providing a new approach for the development of infrared imaging systems towards lightweight, miniaturized, and high-performance designs.

[0006] The technical solution adopted by this invention to solve the above-mentioned technical problems is as follows: an infrared transparent chalcogenide glass solution, which is prepared by dissolving chalcogenide glass and an organic amine solvent. The organic amine solvent is an amine salt solvent containing bifunctional groups, wherein the bifunctional groups are alkyl and amino groups. The microstructure of the chalcogenide glass is formed by covalent bonding of chalcogenide elements, modifiers, and selectively added dopants. The chalcogenide elements are S, Se, or Te. The modifiers are at least one of Ge, Sb, In, Sn, and As. The dopants are at least one of Cd, Ag, CsCl, Bi, Cs, and Cu. The microstructure of the chalcogenide glass is rich in MN structures with trigonal pyramidal or tetrahedral structures. a , where M is at least one of Ge, Sb, In, Sn, As, Cd, Ag, Cs, Bi, Cu, N is S, Se or Te, and a takes the value of 2, 3 or 4.

[0007] The chalcogenide glass solution of this invention possesses a broad infrared spectrum, high transmittance, and high refractive index, exhibiting superior light control capabilities, and can be used to fabricate infrared liquid deformable lenses. The fabricated infrared liquid deformable lenses can be used in mid-to-far infrared deformable imaging systems, enabling greater integration of the imaging system and providing a new pathway for the development of infrared imaging systems towards lightweight, miniaturized, and high-performance designs.

[0008] The dissolution process of chalcogenide glasses in organic amine solvents begins with the fragmentation of the bulk glass along the weakly bonded interlayer planes of its layered structure, forming nanoscale solute clusters or lamellae. The organic amine solvent used in this invention is an amine salt solvent containing alkyl (R) and amino (NH2) bifunctional groups, wherein the alkyl group is preferably methyl (CH3), such as n-propylamine, n-butylamine, ethylenediamine, ethanolamine, etc. This organic amine solvent containing alkyl (R) and amino (NH2) bifunctional groups is highly polar; the alkyl groups in the alkyl chain enhance the solvent's permeability by reducing intermolecular forces, and their hydrophobic properties effectively promote the uniform dispersion of the chalcogenide glass in the organic amine solvent. The amino group can replace S, Se, or Te atoms exposed in the solvent through nucleophilic reactions. Specifically, the amino group (NH2) in the organic amine solvent can react with S, Se, or Te atoms in the chalcogenide glass, causing the chemical bonds in the glass network structure to break and form an amine salt. Furthermore, its lone pair electrons can form a polydentate coordination structure with metal ions M such as Ge, Sb, In, Sn, As, Cd, Ag, Cs, Bi, and Cu, producing a stable complex and improving the stability of the chalcogenide glass solution.

[0009] Specifically, during the dissolution of chalcogenide glasses, alkyl and amino groups in the organic amine solvent replace the chalcogenide elements in the glass and form amine salts M(RNH)3 with the metal ions M in the glass. M(RNH)3 induces M vacancies in the glass network, and the M vacancies react with the solvent to form alkyl-amino-metal-sulfide complexes [M(nb)]. x ] n+ In this model, nb represents the amine salt, x represents the coordination number of the amine salt, and n is the charge of the complex. The formation of these complexes not only promotes the further dissolution of chalcogenide glasses but also ensures their stable existence in solution. After complete dissolution in organic amine solvents, chalcogenide glasses form a clear, transparent, and precipitate-free solution, exhibiting high transmittance and high refractive index across a wide infrared band. This chalcogenide glass solution can be used as a raw material to prepare infrared liquid deformable lenses, especially those with adjustable focal length and aberration correction capabilities.

[0010] The above forms an alkyl-amino-metal-sulfide complex [M(nb)]. x ] n+ The reaction formula is as follows:

[0011]

[0012] In the first preferred embodiment, the chalcogen element is S, the modifier is at least one of Ge, Sb, and In, the dopant is at least one of Cd, Ag, and CsCl, and the molar percentage contents of each component are as follows: S ≥ 40 mol%, 5 mol% < Ge < 30 mol%, 10 mol% < Sb ≤ 40 mol%, In < 20 mol%, Cd < 10 mol%, Ag < 20 mol%, CsCl < 20 mol%, the sum of the molar percentage contents of all modifiers < 50 mol%, and the sum of the molar percentage contents of all components is 100 mol%.

[0013] In the second preferred embodiment, the chalcogen element is Se, the modifier is at least one of Ge, Sb, and Sn, the dopant is at least one of Bi, CsCl, and Cu, and the molar percentage contents of each component are as follows: Se ≥ 55 mol%, Ge ≤ 20 mol%, Sb < 35 mol%, Sn ≤ 13 mol%, Bi < 15 mol%, CsCl < 10 mol%, Cu < 25% mol, the sum of the molar percentage contents of all modifiers < 50 mol%, and the sum of the molar percentage contents of all components is 100 mol%.

[0014] In the third preferred embodiment, the chalcogen element is Te, the modifier is at least one of Ge, As, and In, the dopant is at least one of Ag, Bi, and Cu, and the molar percentage contents of each component are as follows: Te ≤ 80 mol%, 10 mol% ≤ Ge ≤ 35 mol%, 20 mol% ≤ As ≤ 60 mol%, In < 10 mol%, 10 mol% ≤ Ag ≤ 20 mol%, Bi < 10 mol%, 10% ≤ Cu ≤ 35 mol%, the sum of the molar percentage contents of all modifiers < 50 mol%, and the sum of the molar percentage contents of all components is 100 mol%.

[0015] Preferably, in this infrared transparent chalcogenide glass solution, the mass-volume ratio of the chalcogenide glass to the organic amine solvent is 0.001 - 2 g / mL.

[0016] The application of the above infrared transparent chalcogenide glass solution in preparing an infrared liquid deformable lens.

[0017] Compared with the prior art, the present invention has the following advantages: The chalcogenide glass solution of the present invention is prepared by dissolving a chalcogenide glass and an organic amine solvent. During the dissolution of the chalcogenide glass, the alkyl and amino groups in the organic amine solvent replace the chalcogen element in the chalcogenide glass and form an amine salt M(RNH)3 with the metal ion M in the chalcogenide glass. M(RNH)3 induces M vacancies in the glass network, and the M vacancies react with the solvent to form an alkyl-amino-metal-sulfur complex [M(nb)x ] n+ The formation of these complexes not only promotes the further dissolution of chalcogenide glasses but also ensures their stable existence in solution. After complete dissolution in organic amine solvents, chalcogenide glasses form a clear, transparent, and precipitate-free solution. The chalcogenide glass solution of this invention possesses a broad infrared spectrum with high transmittance and high refractive index, good stability, and high light control capability, making it suitable for fabricating infrared liquid deformable lenses. The fabricated infrared liquid deformable lenses can be used in mid-to-far infrared deformable imaging systems, especially for fabricating infrared liquid deformable lenses with adjustable focal length and aberration correction capabilities, enabling more integrated imaging systems and providing a new pathway for the development of infrared imaging systems towards lightweight, miniaturized, and high-performance designs. Attached Figure Description

[0018] Figure 1 Infrared transmittance spectra of the chalcogenide glass solutions prepared in Examples 1 and 3;

[0019] Figure 2 This is a schematic diagram of the apparatus for fabricating the liquid deformable lens in Example 1;

[0020] Figure 3 This is a schematic diagram of the fabrication apparatus for the liquid deformable lens in Example 1;

[0021] Figure 4 This is a graph showing the relationship between the focal length and deformation of the infrared liquid deformable lens prepared in Example 1. Detailed Implementation

[0022] To better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the implementation of the present invention is not limited thereto. For process parameters not specifically described, conventional techniques can be referred to.

[0023] Example 1: An infrared transparent chalcogenide glass solution, made from Sb 25 S 75 It is prepared by dissolving chalcogenide glass and n-butylamine. The alkyl and amino groups in n-butylamine replace the sulfur atoms in the chalcogenide glass to form the amine salt Sb(RNH)3. Sb(RNH)3 induces Sb vacancies in the glass network. The Sb vacancies react with the solvent to form an alkyl-amino-metal-sulfide complex [Sb(nb)]. x ] n+ Where nb represents n-butylamine, x represents the coordination number of n-butylamine, and n is the charge number of the complex. The preparation method of this infrared transparent chalcogenide glass solution includes the following steps:

[0024] (1) Preparation of chalcogenide glass: According to the designed glass composition, weigh 15g of the required raw materials Sb and S with a purity of 5N or higher, and mix the weighed raw materials evenly into a clean quartz ampoule.

[0025] (2) Vacuum treatment: The quartz ampoule containing the raw materials is subjected to a first vacuum treatment, followed by a second vacuum treatment, until the vacuum degree inside the quartz ampoule is ≤10. -3 After Pa, the quartz ampoule is sealed using an oxyhydrogen flame.

[0026] (3) Melting of chalcogenide glass: The sealed quartz ampoule was placed in a shaking furnace and slowly heated to 900℃ in a multi-stage heating process. The multi-stage heating process is as follows: First, the temperature was slowly increased to 340℃ at a heating rate of 2℃ / min and held at this temperature for 1 hour. Then, the temperature was slowly increased to 550℃ at a heating rate of 1℃ / min and held at this temperature for 1 hour. Finally, the temperature was slowly increased to 900℃ at a heating rate of 1℃ / min and held at 900℃ for 24 hours under shaking conditions (shaking rate of 4r / min and shaking angle of 60°). After that, the temperature was slowly decreased to 650℃ at a cooling rate of 0.5℃ / min. Then, the quartz ampoule was placed vertically in the shaking furnace for 2 hours. Then, the quartz ampoule was removed from the shaking furnace and quenched in water to room temperature, thus obtaining infrared transparent Sb in the quartz ampoule. 25 S 75 Chalcogenide glass bulk;

[0027] (4) Preparation of chalcogenide glass solution: In a dry glove box filled with high-purity nitrogen, the prepared infrared transparent Sb 25 S 75 Chalcogenide glass blocks were ground into Sb in an agate mortar. 25 S 75 Glass powder, then take 3g Sb 25 S 75 Glass powder was fed into a vial using weighing paper. 10 mL of n-butylamine solution was added to the vial using a plastic dropper. A magnetic stirrer was then added to the vial, and the cap was tightened. The vial was placed on a magnetic stirrer and heated while stirring at 1000 rpm and 60°C. The mixture was allowed to cool slightly until Sb... 25 S 75 After the glass powder is completely dissolved, remove the residue using a centrifuge, and filter the supernatant dropwise through a syringe filter to obtain clear Sb. 25 S 75 The infrared transmittance spectrum of the chalcogenide glass solution is shown below. Figure 1 .

[0028] An apparatus for fabricating a liquid deformable lens, such as... Figure 2 and Figure 3As shown, the device includes, from top to bottom, a positive electrode layer 1, a piezoelectric ceramic sheet 2, a negative electrode layer 3, an upper ZnSe glass sheet 4, a quartz glass ring 5, and a lower ZnSe glass sheet 6. The piezoelectric ceramic sheet 2 is a ring-shaped single piezoelectric ceramic sheet (PZT), and the central aperture of the piezoelectric ceramic sheet 2 is the designed working area 7. Figure 2 and Figure 3 The direction indicated by the middle arrow is the light transmission direction of the working area 7. Two rings of fan-shaped discrete electrodes are distributed around the periphery of the working area 7, with 16 fan-shaped electrodes in each ring. These 32 fan-shaped electrodes constitute 32 individual piezoelectric actuators, which together form the piezoelectric ceramic sheet 2. The upper ZnSe glass sheet 4, the quartz glass ring 5, and the lower ZnSe glass sheet 6 are bonded to the planar glass sheet and sealed with silicone rubber to form a closed cavity 8. The ZnSe glass sheet has high transmittance in the wavelength range of 2.5–22 μm, effectively transmitting infrared light, and exhibits good thermal shock resistance and stability.

[0029] Fabrication of an infrared liquid deformable lens: Sb 25 S 75 A chalcogenide glass solution is injected into the sealed cavity of the aforementioned preparation apparatus. When a voltage is applied to each of the 32 individual piezoelectric actuators, the voltage difference between the piezoelectric ceramic sheet and the negative electrode layer changes. Due to the inverse piezoelectric effect of the piezoelectric material, the piezoelectric ceramic sheet undergoes lateral elongation or contraction deformation. The edge of the upper ZnSe glass sheet is fixed to a quartz glass ring; therefore, the deformation of the piezoelectric ceramic sheet causes the upper ZnSe glass sheet to bend accordingly and produce out-of-plane displacement. By applying voltage to each actuator for piezoelectric drive, the upper ZnSe glass sheet deforms within the working aperture, thereby changing the radius of curvature and surface shape, thus altering the focal length of the lens and correcting aberrations, thus preparing Sb. 25 S 75 The relationship between focal length and deformation of an infrared liquid deformable lens is shown in the figure below. Figure 4 .

[0030] Example 2: An infrared transparent chalcogenide glass solution, prepared by dissolving 70GeS2-20In2S3-10CdS chalcogenide glass and n-butylamine phase, wherein the lone pair electrons of the amino group in n-butylamine interact with the Ge... 4+ Coordination weakens the Ge-S bond, forming a structure similar to [Ge(nb)]. x ] n+ The complex structure of In will also interact with In 3+ Cd 2+ Coordinate bonds are formed, thus forming [In(nb)]. x ] n+ [Cd(nb)] x ] n+The structure is a coordination compound. The preparation method of this infrared transparent chalcogenide glass solution includes the following steps:

[0031] (1) Preparation of chalcogenide glass: According to the designed glass composition, weigh 15g of the required raw materials Ge, In, Cd and S with a purity of 5N or higher, and mix the weighed raw materials evenly into a clean quartz ampoule.

[0032] (2) Vacuum treatment: The quartz ampoule containing the raw materials is subjected to a first vacuum treatment, followed by a second vacuum treatment, until the vacuum degree inside the quartz ampoule is ≤10. -3 After Pa, the quartz ampoule is sealed using an oxyhydrogen flame.

[0033] (3) Melting of chalcogenide glass: The sealed quartz ampoule is placed in a shaking furnace and slowly heated to 950℃ in multiple stages. The specific process of multiple stages is as follows: First, the temperature is slowly increased to 350℃ at a heating rate of 2℃ / min and held at this temperature for 1 hour. Then, the temperature is slowly increased to 450℃ at a heating rate of 1℃ / min and held at this temperature for 1 hour. Finally, the temperature is slowly increased to 950℃ at a heating rate of 0.5℃ / min and then heated in a shaking furnace. Under pendulum conditions (pendulum speed of 3 r / min, pendulum angle of 60°), the ampoule was held at 950°C for 12 h, and then slowly cooled to 900°C at a cooling rate of 0.5°C / min. After that, the quartz ampoule was placed vertically in the pendulum furnace for 2 h, and then the quartz ampoule was removed from the pendulum furnace and quenched in water to room temperature. In this way, an infrared transparent 70GeS2-20In2S3-10CdS chalcogenide glass block was obtained in the quartz ampoule.

[0034] (4) Preparation of chalcogenide glass solution: In a dry glove box filled with high-purity nitrogen, the prepared infrared transparent 70GeS2-20In2S3-10CdS chalcogenide glass block was ground into 70GeS2-20In2S3-10CdS glass powder in an agate mortar. Then, 1g of 70GeS2-20In2S3-10CdS glass powder was placed into a vial using weighing paper. 10mL of n-butylamine solution was added to the vial using a plastic dropper. After adding a magnetic rotor to the vial, the cap was tightened. The vial was placed on a magnetic stirrer and heated and stirred at 1000rpm and 60℃. After the 70GeS2-20In2S3-10CdS glass powder was completely dissolved, the residue was removed by centrifugation. The supernatant was then filtered through a needle filter to obtain a clear 70GeS2-20In2S3-10CdS chalcogenide glass solution.

[0035] A 70GeS2-20In2S3-10CdS infrared liquid deformable lens was prepared using the preparation apparatus described in Example 1.

[0036] Example 3: An infrared transparent chalcogenide glass solution, made from Ge 20 Sn5Se 75 It is prepared by dissolving chalcogenide glass and n-butylamine in the phase, wherein the amino group in n-butylamine reacts with Ge 4+ Sn 3+ Ion coordination formation [Ge(nb)] x ] n+ [Sn(nb)] x ] n+ Structure. The preparation method of this infrared transparent chalcogenide glass solution includes the following steps:

[0037] (1) Preparation of chalcogenide glass: According to the designed glass composition, weigh 15g of the required raw materials Ge, Sn and Se with a purity of 5N or higher, and mix the weighed raw materials evenly into a clean quartz ampoule.

[0038] (2) Vacuum treatment: The quartz ampoule containing the raw materials is subjected to a first vacuum treatment, followed by a second vacuum treatment, until the vacuum degree inside the quartz ampoule is ≤10. -3 After Pa, the quartz ampoule is sealed using an oxyhydrogen flame.

[0039] (3) Melting of chalcogenide glass: The sealed quartz ampoule was placed in a shaking furnace and slowly heated to 950℃ in a multi-stage heating process. The multi-stage heating process was as follows: First, the temperature was slowly increased to 250℃ at a heating rate of 2℃ / min and held at this temperature for 1 hour. Then, the temperature was slowly increased to 550℃ at a heating rate of 0.5℃ / min and held at this temperature for 1 hour. Finally, the temperature was slowly increased to 950℃ at a heating rate of 0.5℃ / min and held at 950℃ for 12 hours under shaking conditions (shaking rate of 2r / min, shaking angle of 60°). After that, the temperature was slowly decreased to 850℃ at a cooling rate of 0.5℃ / min. Then, the quartz ampoule was placed vertically in the shaking furnace for 2 hours. Then, the quartz ampoule was removed from the shaking furnace and quenched in water to room temperature, thus obtaining infrared transparent Ge glass inside the quartz ampoule. 20 Sn5Se 75 Chalcogenide glass bulk;

[0040] (4) Preparation of chalcogenide glass solution: In a dry glove box filled with high-purity nitrogen, the prepared infrared transparent Ge... 20 Sn5Se 75 Chalcogenide glass blocks were ground into Ge in an agate mortar. 20 Sn5Se 75 Glass powder, then take 1.2g of Ge 20 Sn5Se 75Glass powder was fed into a vial using weighing paper. 10 mL of n-butylamine solution was added to the vial using a plastic dropper. A magnetic stirrer was then added to the vial, and the cap was tightened. The vial was placed on a magnetic stirrer and heated while stirring at 1000 rpm and 40°C. The mixture was allowed to cool slightly until the desired temperature was reached. 20 Sn5Se 75 After the glass powder is completely dissolved, remove the residue using a centrifuge, and filter the supernatant dropwise through a syringe filter to obtain clear Ge. 20 Sn5Se 75 The infrared transmittance spectrum of the chalcogenide glass solution is shown below. Figure 1 .

[0041] Ge was prepared using the preparation apparatus described in Example 1. 20 Sn5Se 75 Infrared liquid deformable lens.

[0042] Example 4: An infrared transparent chalcogenide glass solution, made from Ge 20 Ag 10 Te 70 It is prepared by dissolving chalcogenide glass in ethylenediamine, where the amino group in ethylenediamine reacts with Ag. 3+ Coordination occurs, weakening the Ag-Te bond binding and causing the internal glass structure to dissociate, forming a stable [Ag(nb)] structure. x ] n+ Type-3 complexes, also with Ge 4+ Ion coordination formation [Ge(nb)] x ] n+ A type of complex. The preparation method of this infrared transparent chalcogenide glass solution includes the following steps:

[0043] (1) Preparation of chalcogenide glass: According to the designed glass composition, weigh 10g of the required raw materials Ge, Ag and Te with a purity of 5N or higher, and mix the weighed raw materials evenly into a clean quartz ampoule.

[0044] (2) Vacuum treatment: The quartz ampoule containing the raw materials is subjected to a first vacuum treatment, followed by a second vacuum treatment, until the vacuum degree inside the quartz ampoule is ≤10. -3 After Pa, the quartz ampoule is sealed using an oxyhydrogen flame.

[0045] (3) Melting of chalcogenide glass: The sealed quartz ampoule was placed in a shaking furnace and slowly heated to 850℃ in a multi-stage heating process. The multi-stage heating process is as follows: First, the temperature was slowly increased to 350℃ at a heating rate of 1℃ / min and held at this temperature for 1 hour. Then, the temperature was slowly increased to 550℃ at a heating rate of 0.5℃ / min and held at this temperature for 1 hour. Finally, the temperature was slowly increased to 850℃ at a heating rate of 0.5℃ / min and held at 850℃ for 12 hours under shaking conditions (shaking rate of 5r / min and shaking angle of 80°). After that, the temperature was slowly decreased to 750℃ at a cooling rate of 0.5℃ / min. Then, the quartz ampoule was placed vertically in the shaking furnace for 2 hours. Then, the quartz ampoule was removed from the shaking furnace and quenched in water to room temperature, thus obtaining infrared transparent Ge glass inside the quartz ampoule. 20 Ag 10 Te 70 Chalcogenide glass bulk;

[0046] (4) Preparation of chalcogenide glass solution: In a dry glove box filled with high-purity nitrogen, the prepared infrared transparent Ge... 20 Ag 10 Te 70 Chalcogenide glass blocks were ground into Ge in an agate mortar. 20 Ag 10 Te 70 Glass powder, then take 0.3g Ge 20 Ag 10 Te 70 Glass powder was fed into a vial using weighing paper. 10 mL of n-butylamine solution was added to the vial using a plastic dropper. A magnetic stirrer was then added to the vial, and the cap was tightened. The vial was placed on a magnetic stirrer and heated while stirring at 1000 rpm and 80°C. The mixture was allowed to cool slightly until the desired temperature was reached. 20 Ag 10 Te 70 After the glass powder is completely dissolved, remove the residue using a centrifuge, and filter the supernatant dropwise through a syringe filter to obtain clear Ge. 20 Ag 10 Te 70 Chalcogenide glass solution.

[0047] Ge was prepared using the preparation apparatus described in Example 1. 20 Ag 10 Te 70 Infrared liquid deformable lens.

Claims

1. An infrared transparent chalcogenide glass solution, characterized in that, The chalcogenide glass solution is prepared by dissolving chalcogenide glass and organic amine solvent, the organic amine solvent is amine salt solvent containing bifunctional groups, the bifunctional groups are alkyl and amino, the micro network structure of the chalcogenide glass is formed by covalent bond combination of chalcogen elements, modifiers and selective added dopants, the chalcogen elements are S, Se or Te, the modifiers are at least one of Ge, Sb, In, Sn and As, the dopants are at least one of Cd, Ag, CsCl, Bi, Cs and Cu, the micro network structure of the chalcogenide glass is rich in MN a , wherein M is at least one of Ge, Sb, In, Sn, As, Cd, Ag, Cs, Bi and Cu, N is S, Se or Te, and a is 2, 3 or 4.

2. The infrared transparent chalcogenide glass solution of claim 1, wherein, The chalcogen element is S, the modifier is at least one of Ge, Sb and In, the dopant is at least one of Cd, Ag and CsCl, the molar percentage content of each component is respectively: S≥40mol%, 5mol%<Ge<30mol%, 10mol%<Sb≤40mol%, In<20mol%, Cd<10mol%, Ag<20mol%, CsCl<20mol%, the sum of the molar percentage content of all modifiers is <50mol%, and the sum of the molar percentage content of all components is 100mol%.

3. The infrared transparent chalcogenide glass solution of claim 1, wherein, The chalcogen element is Se, the modifier is at least one of Ge, Sb and Sn, the dopant is at least one of Bi, CsCl and Cu, the molar percentage content of each component is respectively: Se≥55mol%, Ge≤20mol%, Sb<35mol%, Sn≤13mol%, Bi<15mol%, CsCl<10mol%, Cu<25mol%, the sum of the molar percentage content of all modifiers is <50mol%, and the sum of the molar percentage content of all components is 100mol%.

4. The infrared transparent chalcogenide glass solution of claim 1, wherein, The chalcogen element is Te, the modifier is at least one of Ge, As and In, the dopant is at least one of Ag, Bi and Cu, the molar percentage content of each component is respectively: Te≤80mol%, 10mol%≤Ge≤35mol%, 20mol%≤As≤60mol%, In<10mol%, 10mol%≤Ag≤20mol%, Bi<10mol%, 10%≤Cu≤35mol%, the sum of the molar percentage content of all modifiers is <50mol%, and the sum of the molar percentage content of all components is 100mol%.

5. The infrared transparent chalcogenide glass solution of claim 1, wherein, In the infrared transparent chalcogenide glass solution, the mass-volume ratio of the chalcogenide glass and the organic amine solvent is 0.001-2g / mL.

6. Use of the infrared transparent chalcogenide glass solution in any one of claims 1-5 in the preparation of an infrared liquid anamorphic lens.

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