658 results about "PEDOT:PSS" patented technology

The invention relates to a perovskite solar battery and a preparing method thereof. The perovskite solar battery comprises a transparent electrode, a hole transmission layer, a perovskite light absorption layer, an electronic transmission layer and a metal electrode. The hole transmission layer comprises at least one of PEDOT: PSS, P3HT, PTAA, PThTPTI, metallic oxide and graphene oxide. The electronic transmission layer comprises at least one of 58 pi-electronic fullerene PCBM, 56 pi-electronic fullerene OQMF, 54 pi-electronic fullerene OQBMF, PFN, PEIE, ZnO, TiO2, doped or modified ZnO or TiO2. The perovskite solar battery is high in energy exchange efficiency and low in cost and can be produced on a large scale, and the preparing method is simple in technology.

Conductive polymer fibers 10, in which a conductor 12 containing a conductive polymer impregnates and/or adheres to base fibers 11, and the aforementioned conductive polymer is PEDOT-PSS.

The present disclosure provides a method for fabricating a PEDOT:PSS-based electrode, comprising the steps of: preparing a PEDOT:PSS thin film formed on a substrate; treating the thin film with a solution containing 75-100 vol % of sulfuric acid or a sulfuric acid derivative; separating the thin film from the solution and rinsing the separated thin film; and drying the rinsed thin film at a temperature between 60° C. and 160° C. The present disclosure also provides a PEDOT:PSS-based electrode fabricated by the method, and an organic electronic device including the electrode.

The invention relates to a dual-layer perovskite light emitting diode and a preparation method therefor. The dual-layer perovskite light emitting diode comprises the following components from the bottom up separately: ITO conductive glass is used as a positive electrode; a layer of poly 3, 4-ethylenedioxythiophene-polystyrolsulfon acid (PEDOT-PSS) with a thickness of about 20nm is used as a hole transport layer; a dual-layer perovskite light emitting layer is prepared by a spin-coating method in two times; the adopted dual-layer perovskite light emitting layer can be perovskite with different halogen ratios; a layer of calcium-doped zinc oxide (Ca:ZnO) with the thickness of about 50nm is spin-coated on the perovskite layer to be used as an electron transport layer; and finally metal calcium and aluminum are evaporated to be used as a negative electrode. According to the dual-layer perovskite light emitting diode and the preparation method therefor, on one hand, by regulating and controlling the Ca concentration in the Ca:ZnO, an optimal band gap is obtained, so that the barrier between the electron transport layer and the perovskite is reduced, and the cut-in voltage of the light emitting diode is lowered consequently, and the light emitting efficiency and internal quantum efficiency of the light emitting diode are improved at the same time; and on the other hand, by regulating the halogen ratios in the perovskite, light emission with different colors can be realized.

The invention relates to a flexible polymer solar battery of an anode layer of a metal grid, which comprises a flexible substrate, an anode layer, a hole transport layer, an active layer, an electron transfer layer and an Al electrode cathode and is characterized in that the anode layer is made from one or more of composition metal wire grid materials of Ag, Cu, and Ni. In the solar battery, a silver, copper and nickel (Ag: Cu: Ni) metal grid/LiF combined electrode is used as the anode; compared with the battery prepared by a common flexible substrate ITO electrode, the flexible solar battery prepared by taking P3HT/PCB as the active layer can show up better performance; after a layer of lithium fluoride (LiF) layer with the thickness of 2nm is added between the Ag: Cu: Ni metal grid and the polythiophene derivative doped polystyrolsulfon acid (PEDOT: PSS) layer, the film formation of PEDOT: PSS on the surface of the anode is improved, the balance between the hole and the electron transport is enhanced, and compared with the battery with the common flexible substrate ITO electrodes, the energy conversion efficiency is obviously improved.

An electrochromic device is provided comprising: at least one electrochromic element comprising (i) at least one material that is electrically conducting in at least one oxidation state and (ii) at least one electrochromic material, wherein said materials (i) and (ii) can be the same or different; at least one layer of a solidified electrolyte which is in direct electrical contact with said electrochromic element; and at least two electrodes comprising PEDOT-PSS, arranged side by side in a common plane and adapted for application of a voltage therebetween, one of said electrodes being in direct electrical contact with a component selected from said electrochromic element(s) and the other electrode(s) being in direct electrical contact with a component selected from said electrolyte layer(s) and said electrochromic element(s). Furthermore an electrochemically active element is provided comprising: a first layer comprising PEDOT-PSS mixed with an adhesion promoter, and a second layer comprising PANI, the second layer being deposited on top of and in direct electrical contact with 25 the fist layer.

The invention discloses a transparent conductive film and a preparation method thereof. The transparent conductive film covers a transparent substrate and is a blend system of metal nano-wires and conducting polymer or is a combination layer of a metal nano-wire layer and a conducting polymer layer from bottom to top sequentially. The metal nano-wires include gold, silver, copper and nickel nano-wires; the conducting polymer refers to poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) with neutral pH value. Conducting uniformity of the metal nano-wire film is improved, and the transparent conductive film has high stability when being stored, heated and applied with current in a water-oxygen environment.

The invention discloses a perovskite solar cell and a preparation method thereof. The perovskite solar cell comprises a transparent conductive substrate, a hole transport layer, a decoration layer, a perovskite layer, an electron transport layer, a barrier layer and a metal electrode. The surfaces of PEDOT: PSS, NiOx and the hole transport layer are decorated by ionic liquid based on imidazole, atomic force microscope graphs before and after the decoration are compared, and the decorated surface appearance is more smooth, which is conducive to inhibiting the compounding of dark current. The perovskite layer is a new perovskite material 3MAI: PbAc2.xH2O (x is not smaller than 0 and is not greater than 3), and is prepared by quickly preheating a substrate and heating a perovskite precursor solution, namely instant heating assisted spray coating technology (HASP) at a low temperature (lower than 100 DEG C), which is conducive to increasing the grain size of perovskite and reducing the defects between perovskite grains so as to greatly improve the efficiency of the perovskite battery. The photoelectric conversion efficiency of the final battery device is greater than 19%, the flexible device efficiency is 10.8%, no hysteresis effect is formed, and thus the preparation method has a broad application prospect.

The invention discloses a flexible transparent electrode and a manufacturing method of the flexible transparent electrode. The flexible transparent electrode is formed by compositing copper nanowires and poly (3, 4-ethylenedioxy group thiophene)-poly (styrene sulfoacid) (PEDOT: PSS) to form a conducting layer and attaching the conducting layer to a transparent polymer substrate. The flexible transparent electrode and the manufacturing method of the flexible transparent electrode solve the problems that a copper nanowire film is poor in stability and large in roughness, and the combination force between the copper nanowire film and the flexible substrate is poor. A copper nanometer wire and PEDOT: PSS composite film has the advantages of being high in conductivity, high in light transmittance, good in flexibility and the like. The obtained flexible transparent electrode has good application value in image sensors, solar cells, liquid crystal displays, organic electroluminescence displays, touch screen panels and the like.

The invention discloses a flexible all-solid transparent supercapacitor with a sandwich structure and a preparation method thereof. The supercapacitor adopts a flexible transparent conductive thin film as an electrode and ionic gel as an electrolyte, wherein the conductive thin film is a flexible substrate/metal nanowires/a conductive polymer; the flexible substrate is PET, the metal nanowires areultra-long AgNWs, and the conductive polymer is PEDOT:PSS. The method includes the following steps: spin coating AgNWs dispersion liquid and the doped PEDOT:PSS on the PET to prepare flexible transparent composite electrodes; and then adding the electrolyte to the two pieces of composite electrodes, and performing relative compression to prepare a transparent flexible supercapacitor with a sandwich structure. The flexible all-solid transparent supercapacitor prepared by the invention has good transparency, flexibility and electrochemical performance, has a huge potential to be used in show windows to power buildings, and can also be used for clothes and handbags to charge electronic equipment.

The invention provides two preparation methods of a high-water-stability conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composite electrode. One preparation method comprises the steps of adding PEDOT:PSS into a polyvinyl alcohol solution, directly drippingly coating the mixed solution on the electrode surface, or adding multi-wall carbon nanotubes, carboxyl functionalized graphene and cytochrome c into the mixed solution for further modification to obtain the PEDOT:PSS composite electrode having excellent properties; and the other preparation method comprises the steps of grafting acrylic acid on EDOT, carrying out copolymerization of EDOT and EDOT-AA, dispersing the obtained copolymer into a sodium polystyrenesulfonate solution, and directly drippingly coating the P(EDOT:EDOT-AA):PSS dispersion liquid onto the electrode surface. The preparation methods solve the problems that the PEDOT:PSS composite electrode is quite easily expanded, absorbs moisture and is degraded in a water solution; and the prepared composite electrode has the advantages of excellent water stability, low preparation cost, simple process and the like.

The invention discloses an organic electroluminescent display device, which comprises a glass substrate and an ITO conductive layer arranged on the upper surface of the glass substrate, wherein an anode interface modification layer, a hole transport layer, an electron transport layer, a luminescent layer, a metal cathode Mg layer and a metal cathode Al layer are sequentially arranged on the ITO conductive layer, and the anode interface modification layer is ZnO-doping PEDOT: PSS. The device takes the ZnO-doping PEDOT: PSS as the anode interface modification layer so as to reduce the hole injection barrier of a PEDOT: PSS layer and an ITO interface and improve the composite efficiency of holes and electrons, and meanwhile, the ZnO-doping PEDOT: PSS is also taken as a light scattering layer, so that crystal scattering can increase the luminous flux of the PEDOT: PSS layer, reduces the possibility that total-internal emission occurs among organic layers of a luminescent device, and improves the luminescent efficiency and brightness of organic OLED.

The invention provides a novel superimposed perovskite solar cell preparation method. A first block electrode is composed of a substrate and PEDOT:PSS. A second block electrode is composed of FTO, TiO2, perovskite, Spiro-MeOTAD, and PEDOT:PSS. The two block electrodes are superimposed so as to form the superimposed perovskite solar cell. A Layer I comprises thermally spraying PEDOT:PSS spraying liquid with different amount on a Spiro-MeOTAD film. A Layer II comprises thermally spraying PEDOT:PSS spraying liquid with different amount on a back electrode substrate. According to the superimposed perovskite solar cell, holes generated by the perovskite can be successfully extracted. The superimposed perovskite solar cell is simple in making technology and low in cost. Vacuum is prevented and the substrate can be flexibly transformed. The method is beneficial to flexible design of the nanometer structure of the electrodes and large-scale manufacture of the perovskite solar cells.

A method for making a layered perovskite structure comprises: a) performing a vapor assisted surface treatment (VAST) of a substrate with a surface passivating agent; b) applying a layer of PbI₂ to the passivating agent; c) exposing the PbI₂ to methylammonium iodide (CH₃NH₃I) in an orthogonal solvent; and d) annealing the structure. A PEDOT:PSS coated ITO glass substrate may be used. The surface passivation agent may be one a chalcogenide-containing species with the general chemical formula (E₃E₄)N(E₁E₂)N′C═X where any one of E₁, E₂, E₃ and E₄ is independently selected from C1-C15 organic substituents comprising from 0 to 15 heteroatoms or hydrogen, and X is S, Se or Te, thiourea, thioacetamide, selenoacetamide, selenourea, H₂S, H₂Se, H₂Te or LXH wherein L is a C_n organic substituent comprising heteroatoms and X═S, Se, or Te. The passivating agent may be applied by spin-coating, inkjet-printing, slot-die-coating, aerosol-jet printing, PVD, CVD, and electrochemical deposition.

The invention discloses a method for preparing a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composite modified electrode. The method comprises the following steps of: uniformly mixing PEDOT:PSS aqueous dispersion liquid and Nafion, which are taken as raw materials, and then directly dispensing a mixture on the surface of a composite modified electrode; and in the conventional three-electrode system, performing secondary electrochemical doping by using hydrophobic ionic liquid, and thus obtaining the PEDOT:PSS composite modified electrode which is high in water resistance and high in conductivity. The PEDOT:PSS composite modified electrode which is prepared by the method fully combines the film-forming property of the PEDOT:PSS aqueous dispersion liquid, the adhesion characteristic, biological compatibility and anti-interference characteristic of the Nafion, high conductivity and hydrophobicity of the ionic liquid and the electrochemical catalysis characteristic of a nanometer material, can be applied to electrochemical biosensors or electrochemical sensors, is directly applicable to electrochemical detection of auxin, roxithromycin, vitamin C, benzenediol isomer, organophosphorus, glucose, hydrogen peroxide and the like, and has the characteristics of good detection effect, short response time, high water resistance, wide linear range, high sensitivity, high anti-interference, high stability and the like.

The invention relates to the field of solar cells, and provides a manufacturing method of a methylamine lead iodine perovskite solar cell. A photosensitive layer is a methylamine lead iodine perovskite film. The methylamine lead iodine perovskite film is manufactured by the spin coating technology and the anti-solvent dropping and cleaning technology with combination of the solvent annealing technology. The spin coating technology refers to the process that a methylamine lead iodine perovskite CH3NH3PbI3 precursor solution is spin-coated on a PEDOT:PSS film. The anti-solvent cleaning technology refers to the process that the anti-solvent amyl alcohol is dropped in the process of spin-coating the CH3NH3PbI3 methylamine lead iodine perovskite precursor solution so that the perovskite is enabled to be quickly crystalized and precipitated, wherein the anti-solvent amyl alcohol is sec-amyl alcohol or tertiary amyl alcohol. The adopted preparation technology is simple so that the methylamine lead iodine perovskite solar cell of high efficiency and great repeatability without the hysteresis phenomenon can be prepared.

An electrically conducting organic-inorganic sol-gel derived coating. Films are generated exhibiting good electrical conductivity with high resistance to substrate delamination. PEDOT:PSS is used as the conducting polymer dispersed within an organic-inorganic hybrid sol-gel.

The invention discloses a PEDOT:PSS fiber and a preparation method thereof. A wet spinning technology is adopted, low toxicity and low harm, green and environment-friendly mixed solution of inorganic salt, ethanol and water is adopted as coagulation bath, a PEDOT:PSS aqueous solution is taken as the main raw material, through a simple chemical treatment method, the PEDOT:PSS fiber with excellent electrical conductivity and mechanical properties can be prepared. The PEDOT:PSS fiber can be used directly as a lightweight flexible lead, also can be used for the electrode of a linear flexible capacitor, and can exhibit rapid voltage change response and high specific capacity. Compared with the prior art, the method provided by the invention has the prominent advantages of safety, green and environmental protection, and the fiber has large strength and good flexibility. At the same time, the equipment and method are simple, and can achieve large-scale production of PEDOT:PSS fiber with good mechanical properties, high electrical conductivity and good electrochemical properties.

A method for aerosol jet printing a layered perovskite structure comprises applying a PEDOT:PSS layer to a substrate; applying a layer of lead iodide (PbI₂) to the PEDOT:PSS layer; and applying an aerosol mist of methylammonium iodide (CH₃NH₃I) atop the PbI₂ layer with an aerosol jet nozzle to form a CH₃NH₃PbI₃ perovskite film layer. The substrate may be an ITO glass substrate, and the PEDOT:PSS layer may be applied by a process selected from spin-coating, inkjet-printing, slot-die-coating, aerosol jet printing, physical vapor deposition, chemical vapor deposition, and electrochemical deposition. The PbI₂ layer may be applied by a process selected from spin-coating, aerosol jet printing, inkjet-printing, slot-die-coating, physical vapor deposition, chemical vapor deposition, and electrochemical deposition, and the PbI₂ for application to the PEDOT:PSS layer may be in a solution of DMF, DMSO, γ-butyrolactone, or a combination thereof. The annealing of the PbI₂ layer may be performed at about 80° C. or lower.

The invention discloses a flexible composite thermoelectric thin film and a preparation method therefor, and belongs to the field of a composite thermoelectric material. The flexible composite thermoelectric thin film is prepared from PEDOT: PSS, tellurium nanowires and glucose; the mass ratio of the tellurium nanowires to glucose is 1-5 to 1; and the mass ratio of the tellurium nanowires to PEDOT: PSS is 0.5-9 to 1. The prepared composite material has high Seebeck coefficient as well as high electrical conductivity after acid treatment, wherein the tellurium nanowires are coated with PEDOT: PSS in the composite material.

The invention provides a flexible electrode, a preparation method thereof, a friction nano generator and a preparation method thereof. The flexible electrode comprises a flexible support layer and a conductive layer formed on the flexible support layer, wherein the conductive layer is a PEDOT:PSS film, and the flexible electrode is of a corrugated shape in a natural state. The corrugated flexibleelectrode has excellent conductivity, transparency and deformability, and solves a technical problem that the flexible electrode in the prior art is poor in deformability and cannot simultaneously achieve excellent conductivity, transparency and deformability. The friction nano generator can serve as multi-functional electronic skin, for example, the friction nano generator can collect external mechanical energy so as to generate power and store the generated power into a capacitor. The friction nano generator can also serve as a pressure sensor, a thermal sensor, an ultraviolet sensor and thelike.

The invention provides an OLED display device and a manufacturing method therefor. The OLED display device adopts an inverted type device structure and comprises a substrate, a cathode, an electron injection/transporting layer, a hole transporting layer, a hole injection layer and an anode, wherein the anode is a high conductivity PEDOT:PSS transparent conducting film which can be used to form a transparent OLED display device, the hole injection layer is a hydrophobic organic material, the hole transporting layer is an inorganic material which is high in water and oxygen barrier property, and therefore the hydrophobic hole injection layer can effectively prevent water molecules from permeating an organic illuminant layer when the PEDOT:PSS transparent conducting film is made into the anode; the hole transporting layer which is high in water and oxygen barrier property can exert secondary barrier effects on oxygen molecules and water molecules, and an aim of providing dual protection for the organic illuminant layer can be attained; the OLED display device and the manufacturing method therefor have a great batch production advantage due to simple manufacturing technologies and low production cost.

The invention discloses a cavity injection material for an organic electroluminescent device, belonging to the organic electroluminescent device research and application field. The material of the invention is water solution of weakly acidic, neutral or alkaline PEDOT and PSS; the pH value of the water solution is preferably within the range of between 5.4 and 13, more preferably within the range of between 5.4 and 10.0, further preferably within the range of between 7.6 and 10.0 and optimally 7.6. The cavity injection material for the organic electroluminescent device adopts the method which is different from the prior method in which different organic solvents are selected or alcohol organic compound is mixed in PEDOT:PSS so as to improve the performance of the PEDOT:PSS, adjusts the pH value of the PEDOT:PSS by mixing organic or inorganic alkali in the general PEDOT:PSS water solution so as to improve the cavity transmittability and the luminescent property of OLED, and has good industrial application prospect.

The invention belongs to the technical field of display and particularly relates to a quantum dot light-emitting diode and a preparation method thereof and a display panel. The preparation method of the quantum dot light-emitting diode comprises the step of forming a cathode, an electron transport layer, a light-emitting layer, a hole transport layer and an anode, wherein the electron transport layer comprises substances capable of trapping carriers; and the substances capable of trapping the carriers include an N-type metal oxide and a quantum dot material containing a hydroxyl group in a surface ligand. According to the quantum dot light-emitting diode, electron transportation or injection can be effectively reduced through doping one or more substances capable of trapping the carriers into the electron transport layer, and the device light-emitting efficiency of the quantum dot light-emitting diode is obviously improved; meanwhile, the whole structure is prepared by adopting PEDOT:PSS PH1,000 with high conductivity as a transparent anode and adopting an all-solution process (All-solution-processed), so that adoption of a high vacuum coating machine is avoided and the preparationcost of a device is reduced.