134results about How to "Enhanced charge transport capability" patented technology

A photoelectric conversion element is provided and includes: an electrically conductive thin layer; an organic photoelectric conversion layer; and a transparent electrically conductive thin layer. The organic photoelectric conversion layer contains: a compound represented by formula (I); and a fullerene or a fullerene derivative.

In the formula, Z₁ represents an atomic group necessary for forming a 5- or 6-membered ring, L₁, L₂ and L₃ each independently represents an unsubstituted methine group or a substituted methine group, D₁ represents an atomic group, and n represents an integer of 0 or more.

A photoelectric conversion element is provided and includes: an electrically conductive thin layer; an organic photoelectric conversion layer containing a compound having a partial structure represented by the following formula (I) and a fullerene or a fullerene derivative; and a transparent electrically conductive thin layer.

X represents O, S or N—R₁₀, R₁₀ represents a hydrogen atom or a substituent, R^x and R^y represent a hydrogen atom or a substituent, with at least one representing an electron-withdrawing group, R^x and R^y may combine to form a ring, R represents a bond (—), a hydrogen atom or a substituent, with at least one being the bond, nr represents an integer of 1 to 4, R's may be the same or different when nr is 2 or more, and R's at the 2- and 3-positions or R's at the 5- and 6-positions may combine with each other to form a ring.

Provided are a silicon-containing compound having carbazole and fluorene in its molecule and an organic electroluminescent device including an organic layer employing the same. The silicon-containing compound is represented by the following formula:

The silicon-containing compound has excellent electrical characteristics and a charge transporting capability, the silicon-containing compound can be used as a hole injecting material, a hole transporting material, and/or a light emitting material that are suitable for all-color fluorescent and phosphorescent organic light emitting devices such as red, green, blue, and white fluorescent and phosphorescent organic light emitting devices. When the silicon-containing compound is used to manufacture an organic electroluminescent device, the organic electroluminescent device has a high efficiency, a low driving voltage, high luminosity, and a long lifetime.

A preferred aspect of an electrophotographic photoconductor of the present invention contains a layer containing a hardened material which is prepared by polymerizing (A) a chain-polymerizable group-containing tertiary amine compound in which at least one alkyl group is bound to a nitrogen atom constituting an amine structure through chain polymerization. Another preferred aspect of the electrophotographic photoconductor contains a layer containing a hardened material which is prepared by polymerizing the (A) component, and (B) a chain-polymerizable charge transporting compound through chain polymerization. Still another preferred aspect of the electrophotographic photoconductor contains a layer containing a hardened material which is prepared by polymerizing the (A) component, (B) the chain-polymerizable charge transporting compound, and (C) a trifunctional or more chain-polymerizable compound through chain polymerization.

The invention discloses an organic metal iridium complex (or hybrid iridium complex). The structure of the complex is as shown in the specification, a developed indolocarbazole series serves as a unit portion of an organic metal iridium light-emitting ligand structure, the charge transfer capacity of the conjugate iridium complex is increased, the performance of an OLED (organic light-emitting diode) device can be improved, the dissolving performance of the light-emitting iridium complex can be enhanced, sublimation temperature is reduced, and a plurality of original difficultly dissolved, sublimated and purified light-emitting iridium complexes are easily dissolved, sublimated and evaporated on a large scale to prepare the OLED device.

A fin-shaped structure is formed from a semiconductor material. The fin-shaped structure is processed to generate a tensile strain within the semiconductor material along a longitudinal direction of the fin.

A photoelectric conversion device having: a pair of electrodes; a photoelectric conversion layer sandwiched between the pair of electrodes; and at least one electron blocking layer provided between one electrode of the pair of electrodes and the photoelectric conversion layer, wherein the photoelectric conversion layer contains at least one organic material, and the at least one electron blocking layer has a mixed layer containing fullerene or fullerene derivatives.

The invention discloses a method for preparing a perovskite film and a perovskite solar cell device, wherein the method for preparing a perovskite film comprises the following steps: (1) preparing a perovskite precursor solution, then adding anti-solvent diethyl ether to the perovskite precursor solution, and uniformly mixing the anti-solvent diethyl ether and the perovskite precursor solution; (2) dropping the perovskite precursor solution containing the diethyl ether onto the surface of a substrate, performing spin coating, and dropping anti-solvent toluene during the spin coating in order to wash the surface of perovskite; (3) after the spin coating, subjecting an obtained perovskite film intermediate product to thermal annealing treatment to obtain the perovskite film. Adding the diethyl ether to the perovskite precursor solution can control the growth of a perovskite crystal, can prepare a perovskite film having a uniform grain size and low surface roughness, and is beneficial toimproving carrier mobility, a diffusion length, and a charge transport capacity. The perovskite film, when used as an active layer of the perovskite solar cell device, can effectively improve the photovoltaic performance of the device.

The invention discloses an organic-two-dimensional crystal-inorganic hybrid heterojunction solar cell device and a preparation method thereof. The solar cell device comprises a metal back electrode, an n-type silicon-based substrate, an organic conjugated film uniformly mixed by conjugated organic matters and two-dimensional laminar nanocrystalline materials and metal gate electrodes sequentially from bottom to top. The surface of the silicon-based substrate is coated with mixed solution of the two-dimensional laminar nanocrystalline materials and the conjugated organic matters in a spin manner, or the two-dimensional laminar nanocrystalline materials and the conjugated organic matters of different concentrations are coated on the surface of the silicon-based substrate directly and sequentially in a spin manner to serve as a hole transport layer; stability of cells are improved by modification of an organic-inorganic matter hybrid heterojunction, charge transport capability of the solar cells is enhanced, surface state density defects are overcome effectively, and the solar cell device is simple to operate and easy for industrial production.

The invention relates to the field of the organic semiconductor thin-film solar cell, and specifically discloses a centrifugal assistant light active layer stratified organic solar cell based on spinning-coating process, and a preparation method thereof. The preparation method comprises the following steps: S1, cleaning a baseplate composed of a transparent substrate and an ITO transparent conductive cathode layer, and blow-drying by using nitrogen after cleaning; S2, spinning-coating, printing or spraying PEDOT: PSS precursor solution on the ITO transparent conductive cathode layer surface, and preparing an anode buffer layer, and performing low-temperature baking on the formed thin-film; S3, preparing a PBDB-ITIC light active layer on the anode buffer layer by adopting the spinning-coating process; S4, adhering the baseplate spun-coated with the PBDB-T:ITIC light active layer to a vertical sidewall to perform rotary centrifuging; S5, performing thermal annealing treatment on the PBDB-T:ITIC light active layer in a glovebox; S6, evaporating LiF on the PBDB-T:ITIC light active layer surface under the condition that the vacuum degree is 3*10<3>Pa, and preparing a cathode buffer layer; and S7, evaporating a metal cathode layer on the cathode buffer layer. And an aim of improving various performance parameters of the organic solar cell is finally improved.

The invention discloses a silicon solar cell and a manufacturing method of the silicon solar cell. The manufacturing method of the silicon solar cell includes the following steps of firstly providing a metallurgical grade silicon wafer substrate and cleaning the metallurgical grade silicon wafer substrate, secondly etching the metallurgical grade silicon wafer substrate and conducting purification on the metallurgical grade silicon wafer substrate, thirdly conducting morphology modification on the surface of a silicon nanometer array, fourthly conducting morphology modification on the surface of the silicon nanometer array again, and fifthly coating the silicon nanometer array with conjugated organic matter. According to the manufacturing method of the silicon solar cell, the metallurgical grade silicon materials are applied to preparation of the solar cell, surface morphology treatment and surface purification treatment are conducted on the metallurgical grade silicon materials by fully applying the wet metal auxiliary chemical etching technology, and a silicon nanometer structure is formed. Passivating treatment is conducted on organic materials and the silicon nanometer structure, electrical performance and optical performance of a metallurgical grade silicon cell are improved, and charge separation performance and charge transmission performance are improved. Stability of the cell is improved through modification to organic-inorganic hybrid heterojunction, and the charge transmission capacity of the solar cell is enhanced.

The invention discloses a preparation method of a carbon composite sodion anode material. The method comprises the following steps of S1, uniformly mixing ferrous sulfate, sodium sulfate and a carbon-based material to obtain an anode material precursor; S2, sintering the anode material precursor under the oxygen-free condition at the temperature of 300 DEG C to 450 DEG C to obtain the carbon composite sodion anode material, wherein carbon is embedded into the sodion anode material. According to the carbon composite sodion anode material prepared through the method provided by the invention, the carbon is embedded into the sodion anode material so as to play a role of a bridge, and NaxFey(SO4)z particles are stringed into a three-dimensional network-shaped carbon-based framework, so that the charge transmission capability among anode material particles can be remarkably improved; due to the introduction of the carbon-based material, the production of impurity phases is inhibited, and the yield of target materials is remarkably improved.

Provided is a photoelectric conversion device comprising a transparent electrically conductive film, a photoelectric conversion film, and an electrically conductive film, wherein the photoelectric conversion film contains a compound represented by the following formula (i):

wherein each of R₂ to R₉ independently represents a hydrogen atom or a substituent, provided that each of at least two out of R₃, R₄, R₇ and R₈ independently represents an aryl group, a heterocyclic group or —N(Ra)(Rb), each of Ra and Rb independently represents a hydrogen atom or a substituent, and at least either Ra or Rb represents an aryl group or a heterocyclic group; and R₁ represents an alkyl group, an aryl group or a heterocyclic group.

An electrophotographic photoreceptor of excellent durability having high sensitivity and light responsiveness, not suffering from lowering of the electric characteristics by exposure to light, change of circumstance, or repetitive use, and excellent in the cleaning property and not suffering from lowering of the picture quality of formed images for a long times, in which an enamine compound represented by the general formula (1), for example, an enamine compound represented by the following structural formula (1-1) is incorporated in a photosensitive layer 14, and the surface energy (γ) on the surface of the photosensitive layer 14 is set to 20.0 mN/m or more and 35.0 mN/m or less, the electrophotographic photoreceptor 1:

The invention discloses a preparation method of an in-situ carbon conductive agent-coated tin-nickel alloy and an application of the in-situ carbon conductive agent-coated tin-nickel alloy as a cathode material for a sodium-ion battery. The method comprises the following steps: respectively dissolving stannic chloride and nickel potassium cyanide into water solutions into which a carbon conductive agent is dispersed, and then mixing the water solutions of the stannic chloride and the nickel potassium cyanide to form Sn(IV)-Ni(II) cyano coordination polymer hydrogel of the in-situ immobilized carbon conductive agent; and with a composite hydrogel system as a precursor, adding sodium borohydride as a reducing agent, reacting for 0.1-24 hours, and washing and drying a product to obtain the in-situ carbon conductive agent-coated tin-nickel alloy. The carbon conductive agent is coated with the tin-nickel alloy in situ in the composite hydrogel reduction process; and uniform distribution of the carbon conductive agent and tin-nickel alloy active materials at the nanoscale can be achieved, so that the structure stability and the charge transport capacity of the tin-nickel alloy as the cathode material for the sodium-ion battery are effectively improved.