887 results about "Organic semiconductor" patented technology

The invention belongs to the technical field of perovskite solar cells, and particularly discloses a carbazolyl conjugate enhanced self-assembled monomolecular layer and a preparation method and application thereof, and the self-assembled monomolecular layer takes carbazole as a substrate and an aromatic ring as a conjugate linking group. The highly conjugated molecular system can induce molecular orbital overlap, increase dipole moment, promote formation of a compact self-assembled monomolecular film, reduce interface non-radiative recombination and enhance hole extraction and transmission performance. Meanwhile, phosphoric acid is used as an anchoring group, so that firm self-assembly of SAM molecules on the surface of the ITO substrate can be realized. The SAM material is simple in preparation method, high in yield, low in preparation cost and good in stability. When the compound is applied to a trans-perovskite solar cell as a hole transport layer, photoelectric conversion efficiency exceeding 24.6% can be obtained, and the compound is an organic semiconductor material with a very good prospect.

The present invention relates to organic thin film sensors and the preparation and use thereof in sensing applications, and in particular in glucose sensing. The sensor is characterised by a layered structure comprising a porous wicking layer whose surface is configured to receive a liquid sample. An enzyme is disposed on or within the porous layer for facilitating the generation of a charge carrier from an analyte. A polymer layer in contact with the porous layer is connected to an ohmic conductor for applying a gate voltage to the polymer layer, the polymer layer being conductive to the charge carrier; and an organic semiconducting layer is connected to a source electrode and a drain electrode.

The embodiment of the invention relates to a method and a device for processing a charge carrier mobility prediction model. The method comprises the following steps of: constructing a prediction model for predicting charge carrier mobility according to two input molecular sequences, and recording the prediction model as a corresponding first prediction model; performing model training on the first prediction model based on a preset first data set; after the model training is finished, receiving a molecule pair sequence list input by a user; and performing batch prediction processing on the molecular pair sequence list based on the first prediction model to obtain a corresponding batch prediction report and feeding back the batch prediction report to the user. When the first prediction model provided by the invention is applied to the design process of organic semiconductor material molecules, the design period can be shortened, and the design efficiency can be improved.

The invention discloses a multicolor photoelectric response synaptic device and a preparation method thereof. The multicolor photoelectric response synaptic device is of a multi-layer structure. The multilayer structure comprises a transparent conductive electrode layer, a hole transport material layer, a lead-free perovskite layer, an electron transport material layer, an organic semiconductor charge transfer compound layer and a metal electrode layer in sequence along the light incidence direction. The preparation method comprises the steps of preparing the transparent conductive electrode layer; sequentially preparing a hole transport material layer, a lead-free perovskite layer, an electron transport material layer and an organic semiconductor charge transfer compound layer on the transparent conductive electrode layer through a spin coating method; and preparing the metal electrode layer on the organic semiconductor charge transfer compound layer through vacuum evaporation. The multicolor photoelectric response synaptic device is reasonable in structural design, can realize ultraviolet-visible-near infrared multicolor photoelectric synaptic function simulation, can realize a color identification function on red light, green light and blue light in a visible light wave band, and has a good application prospect.

According to an aspect, a detection device includes: a first detection circuit including a first photodiode sensitive to first light and a second photodiode sensitive to second light; and a second detection circuit including a third photodiode sensitive to third light. The first photodiode and the second photodiode are coupled in series and in opposite directions to form a first detection element. One end side of the first detection element is coupled to a first signal line via a first transistor. Another end side of the first detection element is configured to be supplied with a first drive signal. A cathode of the third photodiode is coupled to a second signal line via a second transistor. An anode of the third photodiode is configured to be supplied with a second drive signal.

The invention belongs to the technical field of organic photoelectric materials, and particularly discloses a multifunctional organic semiconductor material with cyano phosphonic acid as an anchoring group and a preparation method and application of the multifunctional organic semiconductor material. The cyano group in the anchoring group can effectively increase the deprotonation capability of phosphonic acid and enhance the hydrophilicity of the anchoring group, so that the material has unique amphiphilic characteristics and shows good wettability, and further, the high-quality perovskite thin film is obtained. Meanwhile, F atoms in the arylamine enhance the interface interaction between the hole transport layer and the perovskite layer, thereby further regulating the crystallization of the perovskite, passivating the bottom interface defect of the perovskite, and inhibiting the non-radiative recombination of the interface. The organic semiconductor material is highly conjugated in molecules and good in photo-thermal stability. When the hole transport layer is applied to a trans-perovskite solar cell, the photoelectric conversion efficiency of more than 24.5% can be obtained, and the hole transport layer shows a good industrial application prospect.

The invention provides a multiband photoresponse nerve synapse device based on a two-dimensional and organic heterostructure, an array and application, and belongs to the technical field of organic electric solid-state devices. The device provided by the invention adopts a three-end bottom gate top contact structure and comprises a gate substrate, an insulating layer, a channel layer and a source / drain electrode, and the channel layer forms an II-type heterojunction by a two-dimensional semiconductor material with a narrow-band gap characteristic and an organic semiconductor material. The heterostructure realizes ultraviolet to far infrared (365nm-10 [mu] m) multiband photoelectric response, and shows synaptic plasticity under light pulse modulation, including short-term enhancement, long-term enhancement and learning-forgetting-re-learning characteristics. Large-area array preparation of the device can be realized through methods such as chemical vapor deposition, solution spin coating, jet printing or layer-by-layer self-assembly. The technology not only can be used for brain-like learning and memory simulation, but also can be applied to the fields of sensing and memory integrated intelligent systems, optical neural networks, artificial vision, multi-mode intelligent sensing and the like.

The invention refers to an electronic component, in particular an organic electrochemical transistor (OECT) which comprises at least one gate electrode, a source electrode, a drain electrode, a channel and an electrolyte. The electrolyte is a solid electrolyte comprising a polymer, and the channel comprises an organic semiconductor as channel material. The electrolyte has a low water content and / or a low C1-C3-alcohol content as well as a low maximum halogen alkaline salt or alkaline earth or acetate salt content. The invention further refers to the use of this electronic component as a Schmitt-Trigger or a Muller-C-element or a flip-flop or a 1-bit memory. Further, the invention provides a method for forming such an electronic component.

The invention relates to the field of solar cells, and discloses an organic compound, application thereof and a perovskite solar cell, and the organic compound has a structure shown in a formula (I). The organic compound provided by the invention has a proper energy level, is an organic semiconductor material with excellent performance, and can improve the efficiency of a perovskite solar cell device.

The invention belongs to the technical field of organic semiconductors, and discloses a compound with a benzobisoxazole structure and an organic electroluminescent device containing the compound. The compound with the benzobisoxazole structure has the following mechanism: # imgabs0 #, which is used as a charge transport material and a charge injection material in the organic electroluminescent device, especially as a hole injection layer material, and can greatly improve the voltage, service life and other properties of the organic electroluminescent device.

According to an aspect, a detection device includes: a substrate; and a photodiode in which a lower electrode, a lower buffer layer, an active layer, an upper buffer layer, and an upper electrode are stacked on the substrate in the order as listed. In plan view, the lower electrode is provided so as to extend from an area overlapping an organic semiconductor layer including the lower buffer layer, the active layer, and the upper buffer layer to an area outside a side surface of the organic semiconductor layer.

The invention discloses a high-temperature-resistant BOPP capacitor film and a preparation method and application thereof.The high-temperature-resistant BOPP capacitor film is prepared from polypropylene and organic semiconductor master batch, and the organic semiconductor master batch comprises a conjugated organic semiconductor polymer and a cyclic olefin polymer; the conjugated organic semiconductor polymer and the cyclic olefin polymer are added into the polypropylene to prepare the high-temperature-resistant BOPP capacitor film, the high-temperature-resistant BOPP capacitor film is used for preparing a thin-film capacitor, and the high-temperature-resistant performance of the thin-film capacitor can be remarkably improved.

The invention belongs to the technical field of perovskite solar cells, and particularly discloses a self-assembled monomolecular layer organic semiconductor material based on indene [2, 1-b] carbazole and a preparation method and application thereof.The indene [2, 1-b] carbazole and derivatives thereof are used as functional groups in semiconductor material molecules, and the semiconductor material molecules have a large conjugate plane structure, so that the structure of the semiconductor material is improved; according to the invention, phosphoric acid is taken as an anchoring group, strong intermolecular interaction is induced, molecules are promoted to form more ordered and compact SAM on an ITO substrate, two methyl groups on the SAM generate a spatial effect, aggregation and blockage at a crystal boundary in a film forming process are prevented, a recombination center is generated, and phosphoric acid is taken as the anchoring group, so that firm self-assembly of a self-assembly monomolecular layer on the surface of the ITO substrate can be realized. The self-assembled monomolecular layer organic semiconductor material has the advantages of good stability, expandability, no dopant, simple preparation and low cost. When the material is applied to a perovskite solar cell, the photoelectric conversion efficiency exceeding 24% can be obtained, and the material is an organic semiconductor material with a very good prospect.

The invention relates to an organic artificial synaptic transistor pressure sensor based on a suspension structure and an array, a preparation method and application thereof, and belongs to the technical field of semiconductor devices and sensing. The pressure sensor is composed of a substrate, source and drain electrodes, a supporting layer and a suspension structure based on an organic semiconductor layer, a dielectric passivation layer, a polyelectrolyte dielectric layer and a flexible grid electrode, and current change is caused through contact change between the organic semiconductor layer and the source and drain electrodes so as to achieve pressure response. The pressure sensor has the advantages of low power consumption, fast response, high sensitivity, wide detection range and the like, and can simulate a biological synapse function to realize a pressure synapse characteristic which is crucial to complex signal processing. In addition, the integrated array of the pressure sensors can be combined with an algorithm to realize high-accuracy touch recognition of braille characters. The results provide a new opportunity for the potential application of the method in bionic electronic skin, touch imaging, electrical equipment monitoring, sensing, storing and computing intelligent terminals and man-machine interaction systems.

The invention discloses a flexible gas flow velocity sensor based on ionic conductive gel, and a preparation method and application thereof. The flexible gas flow velocity sensor specifically comprises a semiconductor active layer and a pore-forming agent which are blended, performing spin coating and etching on the interdigital electrode substrate to prepare a semiconductor film with a porous structure; blending an ionic gel precursor solution; and spin-coating or drop-casting the precursor solution, and preparing the gel film with the ionic conduction characteristic through photo-crosslinking. The sensor provided by the invention can realize sensing response to different inert gases and different gas flow rates under low power consumption, and realizes detection application to human respiration through the Bluetooth test module. Air flow is introduced to regulate and control ion mobility, and the sensing performance of the device is improved by means of the porous organic semiconductor film. The flexible sensor can be attached to other objects or the surface of the inner wall of an airflow pipeline, the device is simple in structure and easy to miniaturize, and a millimeter-level micro sensor can be achieved. And the method is suitable for batch preparation of low-power-consumption miniaturized devices.

The invention relates to the technical field of solar cells, in particular to a perovskite cell, a preparation method of the perovskite cell, a laminated cell and a photovoltaic module. Electron-rich N atoms in dithienopyrrole (DTP) can improve the stability of an organic semiconductor material in an oxidation state, S atoms can interact with metal ions in a perovskite absorption layer, so that interface defects on the surface of perovskite are passivated, and meanwhile, DTP serves as a multifunctional electron-rich thiophene fused heterocyclic unit, so that the performance of the perovskite absorption layer is improved. The compound has the unique characteristics that the recombination energy is small, the mobility is high, N and thiophene sites can be chemically modified, and the compound can interact with metal ions. According to the invention, thiophene sites in DTP are chemically modified by adopting an electron-donating group containing aniline fluorene, so that the hole transport material has a deeper HOMO energy level, the HOMO energy level is better matched with the energy level of a perovskite material, better mobility is realized, and hole extraction and transport are facilitated.

The invention discloses a flexible organic field effect transistor respiratory ammonia sensor using modified graphene oxide nanosheets and a preparation method of the flexible organic field effect transistor respiratory ammonia sensor, and belongs to the technical field of gas sensors. The organic light emitting diode sequentially comprises a flexible substrate, a grid electrode, a flexible dielectric layer, an organic semiconductor layer and a source electrode / drain electrode from bottom to top, and raw materials of the organic semiconductor layer comprise poly [(dithiophene)-alternating-(2, 5-bis (2-octyldodecyl)-3, 6-bis (thienyl)-diketopyrrolopyrrole)], an elastomer and modified graphene oxide. The nano material OA-GO containing multiple functional groups has an adsorption effect on target gas, the porous film containing the OA-GO is prepared, the surface area in contact with the gas is increased, more binding sites can be exposed, and finally high-sensitivity and high-selectivity detection of the target gas NH3 is achieved.

The heat resistance of an organic semiconductor device including a step of forming an aluminum oxide film over and in contact with an organic semiconductor layer is improved. A heating step is performed after a layer containing an organometallic compound for a mask for an organic semiconductor layer, which is represented by General Formula (G1) below, is provided over the organic semiconductor layer.In General Formula (G1), Ar represents a substituted or unsubstituted aryl group having 6 to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms, X represents oxygen or sulfur, M represents a metal, n represents an integer greater than or equal to 1 and less than or equal to 5, and n is the same as the valence of the metal M. Note that when n is greater than or equal to 2, a plurality of Ars may be the same or different and Xs may be the same or different. When Ar represents the substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms, a heteroatom of the heteroaryl group may be coordinated to the metal M.

The invention belongs to the technical field of organic photoelectrochemical transistors, and particularly relates to an organic photoelectrochemical transistor sensor based on a shadow effect Pt / n-Si grid and preparation and application of the organic photoelectrochemical transistor sensor. The sensor comprises a Pt / n-Si grid electrode based on the shadow effect and an organic photoelectrochemical transistor, the organic photoelectrochemical transistor comprises an electrolyte solution, a source electrode, a drain electrode and an organic semiconductor film, the source electrode and the drain electrode are spaced, the source electrode and the drain electrode are covered with the organic semiconductor film, and glucose oxidase and hydrogen peroxide horseradish enzyme are modified on the Pt / n-Si grid electrode. When the sensor is used for glucose detection, the two enzymes can catalyze glucose to generate cascade reaction to generate precipitates, photo-generated voltage generated by the grid electrode can be reduced along with increase of the precipitation amount, then the change of the grid electrode voltage is further amplified through channel current, then the detection sensitivity is greatly improved, and the sensor is light in structure and convenient to use. The method is easy to integrate, wide in application scene and good in development prospect.

The invention belongs to the technical field of organic semiconductor photoelectricity, and discloses a triphenylamine dicarboxyl-containing self-assembly hole transport material, a synthesis method and application of the triphenylamine dicarboxyl-containing self-assembly hole transport material as a photoelectric device. The triphenylamine dicarboxyl group is used as an anchoring group, and a bridging unit and a hole transport unit are introduced into a molecular structure through a self-assembly monomolecular layer strategy, so that the hole transport material containing the triphenylamine dicarboxyl group is obtained; the technical problems of poor stability, poor device performance and the like of small organic molecules with anchoring groups in the prior art can be solved. The triphenylamine dicarboxyl group is introduced into the hole transport material, so that the efficiency of a photoelectric device can be improved, the service life of the photoelectric device can be prolonged, and the hole transport material comprises a perovskite solar cell, a perovskite light-emitting diode, a quantum dot light-emitting diode and the like.

The invention relates to the technical field of photosensitive sensing, and discloses an organic semiconductor material and an organic field effect transistor, the organic semiconductor material comprises a main body transmission material and a photosensitive doping material, the photosensitive doping material comprises a donor and an acceptor, the lowest unoccupied molecular orbital energy level of the main body transmission material is higher than the highest occupied molecular orbital energy level of a donor of the photosensitive doping material; the lowest unoccupied molecular orbital energy level of the main body transmission material is lower than the lowest unoccupied molecular orbital energy level of an acceptor of the photosensitive doped material; the highest occupied molecular orbital energy level of the host transport material is lower than the highest occupied molecular orbital energy level of the donor of the photosensitive doped material. The organic semiconductor material has a light negative response characteristic.

The invention discloses a flexible material surface wettability patterning treatment method and application thereof. The flexible material surface wettability patterning treatment method comprises the following steps that S1, the surface of a hydrophilic flexible substrate is coated with a patterned polyvinyl alcohol aqueous solution, a patterned area covered with the polyvinyl alcohol aqueous solution and an exposed area not covered with the polyvinyl alcohol aqueous solution are formed, and a flexible substrate I in an intermediate state is obtained; s2, a hydrophobic material layer is deposited in the exposed area, a hydrophobic area is formed, and a flexible substrate II in an intermediate state is obtained; and S3, removing the polyvinyl alcohol aqueous solution on the surface of the flexible substrate through washing, and forming a hydrophilic region on the surface of the substrate to obtain the flexible substrate with the wettability patterned surface. The treatment method has the characteristics of soft treatment means and difficulty in damaging the flexible substrate, and the flexible material subjected to surface wetting patterning treatment can be used for preparing a patterned organic semiconductor material and has a good application prospect.

An organic semiconductor device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-transport layer and alight-emitting layer. The hole-transport layer is positioned between the anode and the light-emitting layer. The hole-transport layer is not in contact with the anode. The hole-transport layer includes a transport layer material for a light-emitting device and the GSP_slope that is a potential gradient of a surface potential of an evaporated film of the material is higher than or equal to 20 (mV / nm).

The invention provides an organic semiconductor powder-methyl fullerene modified spraying type polyurea material and a preparation method thereof, and relates to the technical field of polyurea materials. The preparation method comprises the following steps: adding a [6, 6]-phenyl-C61-methyl butyrate solution into a polyurea blend, carrying out an ultrasonic reaction, coating a mold with a reaction solution after the reaction is finished, and drying to obtain the organic semiconductor powder-methyl fullerene modified spraying type polyurea material. Compared with a traditional insulating sheath, the prepared spraying type polyurea material has better thermal performance and electrical performance, insulation protection difficulty caused by cross arm appearance difference is effectively eliminated, and the maintenance cost caused by bird damage and foreign matter is reduced. The spraying type polyurea material has the advantages that the curing time is short, dripping and hanging objects cannot be formed to influence the physical properties, meanwhile, the material waste can be effectively reduced, and the spraying type polyurea material has higher economical efficiency and wider application scenes.

A reconfigurable intelligent surface module (10) comprises: a substrate (50); and a plurality of RIS cells (20) periodically arranged on the substrate. Each of the plurality of RIS cells includes a resonator (21) including a first conductor (21A) and a second conductor (21B) separated by a gap (G) and includes an active element (22) electrically connected to the first conductor and the second conductor. The active element includes at least a p-type semiconductor layer (22B) and a n-type semiconductor layer (22C), and is configured to change the capacitance of the RIS cell including this active element. The p-type semiconductor layer is an organic semiconductor layer or a metal oxide semiconductor layer, and the n-type semiconductor layer is an organic semiconductor layer or a metal oxide semiconductor layer.

The invention discloses an electric field sensor preparation method based on ion migration and injection characteristics, and relates to the technical field of electric field sensors. The method comprises the following steps: selecting a polymer matrix material and an ionic electrolyte, and carrying out microstructure regulation and control, film forming process regulation and control and surface modification on the basis of the selected polymer matrix material and ionic electrolyte to prepare a solid polymer electrolyte; selecting an organic semiconductor material, and regulating and controlling the hydrophilic or hydrophobic property of the material based on the selected organic semiconductor material to prepare an organic semiconductor; performing interface optimization between the solid polymer electrolyte and the organic semiconductor, and preparing an electric field sensor with a set detection range based on the optimized solid polymer electrolyte and organic semiconductor; the interface optimization is used to increase ion implantation and migration efficiency. According to the invention, measurement of electric fields with different frequencies, different amplitudes and different ranges can be realized, and efficient response and stability of the sensor can be ensured.

The invention provides an organic photoelectrochemical synaptic transistor and a preparation method and a regulation and control method thereof, and belongs to the technical field of transistors. The transistor comprises a substrate, a gate electrode, a source electrode, a drain electrode, an organic semiconductor channel layer and an electrolyte layer; according to the invention, various synaptic plasticity functions can be realized on a single synaptic transistor device through a simple and efficient preparation process; the method has the advantages of simplicity, high efficiency and convenience in large-scale integration. The synergistic effect of photons, electrons and ions is used as a regulation and control mechanism, a single-component n-type organic semiconductor is used as a channel layer material, voltage programming pulses are applied to a grid electrode, light irradiation is applied to a channel layer to simulate biological synaptic stimulation, output current is obtained at a source electrode and a drain electrode to simulate post-biological synaptic current, and the potential safety hazard is eliminated. Information encryption, compiling, hiding and recovery of the Morse code are simulated based on the output pulse current, and the method can be widely applied to the brain-like intelligence field of cognitive judgment with information double anti-counterfeiting encryption.

The invention discloses a polypropylene composite material as well as a preparation method and application thereof. The polypropylene composite material comprises the following raw materials: polypropylene and an organic semiconductor master batch, the polypropylene composite material is prepared by adding the organic semiconductor master batch into the polypropylene, the polypropylene composite material is used for preparing the BOPP capacitor film, and then the BOPP capacitor film is used for preparing the thin-film capacitor, so that the high-temperature resistance of the thin-film capacitor can be remarkably improved.

The invention discloses an organic semiconductor heterojunction photoelectric self-adaptive memristor and a preparation method thereof, and belongs to the field of neuromorphic devices, and the memristor sequentially comprises a substrate, a bottom electrode, a lower active layer, an upper active layer and a top electrode from bottom to top; the upper active layer is prepared from an organic material zinc phthalocyanine, and the lower active layer is prepared from an organic material N, N-tricosylperylene-3, 4, 9, 10-tetracarboxylic diimide. The memristor prepared by the invention realizes simulation of desensitization behavior and retina light adaptation function, and adaptivity modes are switched according to a stimulation type time-sharing trigger mechanism to support multi-mode perception and adaptive information processing in a dynamic environment, so that the development of a neuromorphic device for simulating the adaptivity function of a biological sensory system is promoted.

The invention belongs to the technical field of synthesis and application of organic semiconductor materials, and particularly relates to conjugated small molecule photoresist, a preparation method thereof and application of the conjugated small molecule photoresist in an organic thin film transistor. A compound of an alkyl chain with a photoreaction functional group is introduced to benzothienobenzothiophene, a polymerization reaction can be carried out under the assistance of a cross-linking agent by introducing an acetylene group, the polymerization reaction can be carried out by introducing diacetylene, meanwhile, the overall stacking structure of a BTBT core is not changed, and a channel is provided for efficient transmission of current carriers. Therefore, the material combines the functions of organic semiconductor molecules and traditional photoresist, and a new thought is provided for the design of the conjugated small-molecule semiconductor photoresist.