Abstract: The present invention provides a light emitting device comprising at least an emissive layer existing between an anode and a cathode, which emits light by means of electric energy. The light emitting device contains a compound having a pyrromethene skeletal structure with a specific structure or a metal complex thereof and a naphthacene derivative, and thus the light emitting device has high luminance efficiency and excellent durability.

Abstract: In a multicolor display apparatus in which each of light emitting devices of three colors R, G and B has the same thickness from a reflection position of a reflection electrode to an organic emission layer, an organic emission layer of the R device and an organic emission layer of the B device each have electron transport property whereas an organic emission layer of the G device has hole transport property; and an optical distance (L) from the reflection position of the reflection electrode to an emission position of the organic emission layer in the light emitting devices of three colors satisfies 0.25×?R<L<0.75×?B, where ?R and ?B are peak wavelengths of emission spectra of the red light emitting device and the blue light emitting device.

Abstract: Compounds comprising a ligand having a quinoline or isoquinoline moiety and a phenyl moiety, e.g., (iso)pq ligands. In particular, the ligand is further substituted with electron donating groups. The compounds may be used in organic light emitting devices, particularly devices with emission in the deep red part of the visible spectrum, to provide devices having improved properties.

Abstract: The present invention provides an optoelectronic memory device, the method for manufacturing and evaluating the same. The optoelectronic memory device according to the present invention includes a substrate, an insulation layer, an active layer, source electrode and drain electrode. The substrate includes a gate, and the insulation layer is formed on the substrate. The active layer is formed on the insulation layer, and more particularly, the active layer is formed of a composite material comprising conjugated conductive polymers and quantum dots. Moreover, both of the source and the drain are formed on the insulation layer, and electrically connected to the active layer.

Abstract: A method is provided for modifying a poly(arylene vinylene) or poly(heteroarylene vinylene) precursor polymer having dithiocarbamate moieties by reacting it with an acid and further optionally reacting the acid-modified polymer with a nucleophillic agent. Also provided are novel polymers and copolymers bearing nucleophillic side groups which are useful as components of electronic devices, e.g. in the form of thin layers.

Abstract: Provided is an ink that is the most suitable for a method for forming an organic transistor by transferring a pattern using a liquid-repellent transfer substrate, for example, a microcontact printing method or a reverse printing method. Specifically, provided is an organic semiconductor ink composition which can provide a uniform ink coating film on a surface of a liquid-repellent transfer substrate and which can provide a dry ink film or a semi-dry ink film capable of being easily transferred from the transfer substrate to a transfer-receiving base material. Also provided is a method for forming an organic semiconductor pattern of an organic transistor, the method using the organic semiconductor ink composition. The organic semiconductor ink composition used for obtaining a desired pattern by transferring an ink layer formed on a liquid-repellent transfer substrate to a printing base material contains an organic semiconductor, an organic solvent, and a fluorine-based surfactant.

Abstract: The present disclosure relates to a method for making a conjugated polymer. In the method, polyacrylonitrile, a solvent, and a catalyst are provided. The polyacrylonitrile is dissolved in the solvent to form a polyacrylonitrile solution. The catalyst is uniformly dispersed into the polyacrylonitrile solution. The polyacrylonitrile solution with the catalyst is heated to induce a cyclizing reaction of the polyacrylonitrile, thereby forming a conjugated polymer solution with the conjugated polymer dissolved therein.

Abstract: Electronic devices, such as organic thin film transistors, with improved mobility are disclosed. The semiconducting layer comprises layers or striations of an organic semiconductor and graphene, including alternating layers/striations of such materials. The organic semiconductor and graphene layers interact well together because both materials form lamellar sheets. The presence of graphene enhances mobility by correcting molecular packing defects in the organic semiconductor layers, and the conductivity of graphene can be controlled. Finally, both materials are flexible, allowing for flexible semiconductor layers and transistors.

Abstract: An organic thin film transistor including a substrate having thereon at least three terminals of a gate electrode, a source electrode and a drain electrode, an insulator layer and an organic semiconductor layer, with a current between a source and a drain being controlled upon application of a voltage to the gate electrode, wherein the organic semiconductor layer includes a specified organic compound having an acetylene or olefin structure in the center thereof; and an organic thin film light emitting transistor utilizing an organic thin film transistor, wherein the organic thin film transistor is one in which light emission is obtained utilizing a current flowing between the source and the drain, and the light emission is controlled upon application of a voltage to the gate electrode, and is made high with respect to the response speed and has a large ON/OFF ratio, are provided.

Abstract: A transistor structure comprises a patterned N-type transparent oxide semiconductor formed over a substrate as a base, and a patterned p-type organic polymer semiconductor formed on the patterned N-type transparent oxide semiconductor comprising a first portion and a second portion so that the patterned N-type transparent oxide semiconductor and the first portion and the second portion of the patterned p-type organic polymer semiconductor form heterojunctions therebetween respectively, wherein the first portion of the patterned p-type organic polymer semiconductor is used as an emitter, and the second portion of the patterned p-type organic polymer semiconductor is used as a collector.

Abstract: Organic Field Effect Transistor (OFET), an Organic Light Emitting Diode (OLED), an and an Organic Photovoltaic Cell (OPC) including as active material a conjugated oligomeric or polymeric 2,7-carbazolenevinylene derivative described by the formula (I) or (II): Such OFETs, OLEDs and OPCs have improved devices properties and efficiencies.

Abstract: The present invention relates to polymers comprising one or more (repeating) unit(s) of the formula (I) which are characterized in that Ar1 and Ar1? are independently of each other are an annulated (aromatic) heterocyclic ring system, containing at least one thiophene ring, which may be optionally substituted by one, or more groups, and their use as organic semiconductor in organic devices, especially in organic photovoltaics (solar cells) and photodiodes, or in a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors, organic photovoltaics (solar cells) and photodiodes.

Abstract: Method for growing multilayer polymer based heterojunction devices which uses selective breaking of C—H or Si—H bonds without breaking other bonds leading to fast curing for the production of layered polymer devices having polymer heterojunctions deposited by the common solution-based deposition methods. In one embodiment, a hydrogen plasma is maintained and protons are extracted with an electric field to accelerate them to an appropriate kinetic energy. The protons enter into a drift zone to collide with molecular hydrogen in gas phase. The cascades of collisions produce a high flux of hyperthermal molecular hydrogen with a flux many times of the flux of protons extracted from the hydrogen plasma. The nominal flux ratio of hyperthermal molecular hydrogen to proton is easily controllable by the hydrogen pressure in the drift zone, and by the length of the drift zone.

Abstract: Organic electronic devices comprising an improved charge transport layer. The charge transport layer comprises a covalently cross-linked host matrix. The covalently cross-linked matrix comprises a charge transport compound as molecular subunits that are cross-linked to each other. The charge transport layer further comprises a second charge transport compound as an additive, which may be a small molecule, or a polymer, or a mixture of both. The charge transport layer may be a hole transport layer. The charge transport compound for the additive may be an arylamine compound, such as NPD.

Abstract: A material for an organic electroluminescence device represented by the following formula (I): wherein X1 is one of divalent groups represented by the following (a) to (e); Y1 to Y4 are independently a carbon atom or a nitrogen atom; and R1 to R4 are independently a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocycle, a halogen atom, a fluoroalkyl group or a cyano group, or R1 and R2, and R3 and R4 are independently bonded to form a substituted or unsubstituted aromatic ring or a substituted or unsubstituted heterocycle.

Abstract: A semiconductor device is disclosed. The device includes: oppositely disposed plural electrodes; a semiconductor molecule disposed such that one end part thereof binds to a surface of the electrode in each of the opposing electrodes; and a conductor for electrically connecting at least a part of the other end part of the semiconductor molecule disposed in one electrode of the opposing electrodes to at least a part of the other end part of the semiconductor molecule disposed in the other electrode of the opposing electrodes. The conductivity between the opposing electrodes is substantially determined by the conductivity of the semiconductor molecule electrically connected to the conductor between the opposing electrodes in the semiconductor molecules.

Abstract: An organic semiconductor material is provided. The organic semiconductor material includes a polyacene derivative expressed by the following general formula (1): where each of R1 to R10 may be independently the same substituents or different substituents but all of R1, R4, R5, R6, R9 and R10 may never be hydrogen atoms at the same time, and where each of R1 to R10 is at least one kind of substituent selected from the group consisting of an aliphatic hydrocarbon group having a substituent and of which number of carbon atoms ranges of from 1 to 20, an aromatic hydrocarbon group having a substituent, a complex aromatic group having a substituent, a carboxyl group, a hydride, an ester group, a cyano group, a hydroxyl group, a halogen atom and a hydrogen atom. The organic semiconductor material can be dissolved into an organic solvent at low temperature (for example, room temperature) and is suitable for use with a coating process.

Abstract: The present invention provides of a three-dimensional bicontinuous heterostructure, a method of producing same, and the application of this structure towards the realization of photodetecting and photovoltaic devices working in the visible and the near-infrared. The three-dimensional bicontinuous heterostructure includes two interpenetrating layers which are spatially continuous, they are include only protrusions or peninsulas, and no islands. The method of producing the three-dimensional bicontinuous heterostructure relies on forming an essentially planar continuous bottom layer of a first material; forming a layer of this first material on top of the bottom layer which is textured to produce protrusions for subsequent interpenetration with a second material, coating this second material onto this structure; and forming a final coating with the second material that ensures that only the second material is contacted by subsequent layer.

Abstract: An electronic device which comprises a first electrode, a second electrode, an active polymer layer between the first and the second electrodes, and a passivating layer adapted to enhance the lifetime of the electronic device. The passivating layer comprises a substantially amorphous titanium oxide having the formula of TiOx where x represents a number from 1 to 1.96.

Abstract: An emissive semi-interpenetrating polymer network (E-semi-IPN) includes a semi-interpenetrating polymer network and an emissive material interlaced in the polymer network. The semi-interpenetrating polymer network includes in a crosslinked state one or more of a polymerized organic monomer and a polymerized organic oligomer, polymerized water soluble polymerizable agent, and one or more polymerized polyfunctional cross-linking agents. The E-semi-IPN may be employed as an E-semi-IPN layer (16, 36, 56) in organic light emitting devices (10, 20, 30, 40).

Abstract: A light-emitting device comprises a first electrode, a second electrode, and a light-emitting active material contacting and separating the first and second electrodes. The device comprises a combination of a conjugated polymer and an electrolyte, said electrolyte comprising ions, allowing for electrochemical doping of the conjugated polymer. In the device, a ratio between the ions and the conjugated polymer is selected to allow for the formation of: (i) a doped region at the respective electrode interface, which allows for injection and transport of electronic charge carriers into and through the doped regions, respectively, at zero or low overpotential, and (ii) an effectively undoped region, separating the doped regions, wherein injected electronic charge carriers are recombineable under excitation of the conjugated polymer and the polymer is de-excitable under the emission of light.

Abstract: Provided is an organic light-emitting device that can be driven at low voltage, that produces a light output with high efficiency and high luminance, and that can emit light with high color purity. An organic light-emitting device includes an anode, a cathode, a light-emitting layer disposed between the anode and the cathode, and an organic layer disposed between the anode and the light-emitting layer. The organic layer has a fused polycyclic compound represented by general formula (1): wherein R1 to R8 are each a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted polycyclic group and are each the same or different, and wherein R9 and R10 are substituted or unsubstituted aryl groups that are the same or different.

Abstract: The disclosure is related to organic semiconductor compounds including benzodithieno(3,2-b:2?,3?-d)thiophene (BDTT) and the derivatives of benzodithieno(3,2-b:2?,3?-d)thiophene. The organic compounds of the disclosure have high resistance to the oxidation and high electrical stability. Accordingly, the semiconductor device having an organic semiconductor layer made of the organic compounds of the disclosure has stable electrical performance, and the reliability of the semiconductor device is improved.

Abstract: A composition for use in the manufacture of an opto-electrical device, the composition comprising: a conductive or semi-conductive organic material; a solvent; and a first additive, wherein the first additive is an alcohol ether having a boiling point lower than 170° C.

Abstract: A compound which contains a structure represented by formula (1) and has a light absorption end wavelength of 600 nm or more.

Abstract: An organic light-emitting diode with high color rendering is provided, which includes: a substrate; a first electrode disposed over the substrate; a light-emitting region disposed over the first electrode, in which the light-emitting region includes a plurality of light-emitting layers and at least one spacer, the spacer being disposed between any two of the light-emitting layers and each of the light-emitting layers individually including a dye; and a second electrode disposed over the light-emitting region. Accordingly, the organic light-emitting diode according to the present invention can exhibit high color rendering and high illumination efficiency.

Abstract: An embodiment of the invention is luminescent silicon nanoparticle polymer composite that can serve as a wavelength converter or a UV absorber. The composite includes a polymer or an organosilicon compound; and within the polymer or organosilicon compound, a dispersion of luminescent silicon nanoparticles. In a preferred composite, the silicon nanoparticles have multiple Si—H termination sites, the silicon nanoparticles being linked to a C site to produce a silicon carbide bond (Si—C). In a preferred embodiment, the polymer comprises polyurethane. A composite of the invention can perform wavelength conversion. In a wavelength converted film of the invention, the silicon nanoparticles are incorporated into the polymer or organosilicon compound in a quantity sufficient for wavelength conversion but small enough to have no or an insubstantial effect on the properties of the polymer or the organosilicon compound. A white LED of the invention includes a light emitting diode having a narrow band wavelength output.

Abstract: Provided are a polymer containing a thiophene unit and a thienylenevinylene unit, and an organic field effect transistor and an organic solar cell containing the polymer. The film may be formed by coating a substrate with a polymer containing a thiophene unit and a thienylenevinylene unit using a solution process. Therefore, the production cost may be reduced and a large-scale device may be suitably manufactured since there is no need for an expensive vacuum system to form films. Also, the polymer according to one embodiment of the present invention containing a thiophene unit and a thienylenevinylene unit has very excellent flatness since the thiophene unit is continuously coupled with a vinyl group having excellent flatness. Therefore, the polymer may be useful in further improving the charge mobility since it has high crystallinity caused by the improved ordering property between molecules. Such crystallinity may be further improved by the heat treatment.

Abstract: There is provided an organic electroluminescence display includes a lower electrode formed on a substrate, a device separation film formed on the lower electrode, an organic compound layer formed on the device separation film and including a light emission layer, and an upper electrode formed on the organic compound layer, wherein the device separation film is a polyimide film having an imidation ratio in a range of 65% or more to less than 90%. The display is expected to have longer operating life.

Abstract: Organic thin film devices that included an organic thin film subjected to a selected dose of a selected energy of ions exhibited a stabilized mobility (?) and threshold voltage (VT), a decrease in contact resistance RC, and an extended operational lifetime that did not degrade after 2000 hours of operation in the air.

Abstract: Disclosed are methods of fabricating organic thin film transistors composed of a substrate, a gate electrode, a gate insulating film, metal oxide source/drain electrodes, and an organic semiconductor layer. The methods include applying a sufficient quantity of a self-assembled monolayer compound containing a live ion to the surfaces of the metal oxide electrodes to form a self-assembled monolayer. The presence of the live ion at the interface between the metal oxide electrodes and the organic semiconductor layer modifies the relative work function of these materials. Further, the presence of the self-assembled monolayer on the gate insulating film tends to reduce hysteresis. Accordingly, organic thin film transistors fabricated in accord with the example embodiments tend to exhibit improved charge mobility, improved gate insulating film properties and decreased hysteresis associated with the organic insulator.

Abstract: An exemplary organic semiconductor copolymer includes a polymeric repeat structure having a polythiophene structure and an electron accepting unit. The electron accepting unit has at least one electron-accepting heteroaromatic structure with at least one electron-withdrawing imine nitrogen in the heteroaromatic structure or a thiophene-arylene comprising a C2-30 heteroaromatic structure. Methods of synthesis and electronic devices incorporating the disclosed organic semiconductors, e.g., as a channel layer, are also disclosed.

Abstract: Photopolymers are provided with composites and electronic devices including such photopolymers. Specifically, organic thin film transistors comprising a semiconductor layer, a polymeric layer in contact with the semiconductor layer, a gate electrode, a source electrode and a drain electrode are disclosed, wherein the semiconductor layer comprises an organic semiconductor compound, and the polymeric layer comprises a photocrosslinked product of a photopolymer.

Abstract: A light-emissive device comprising a light-emissive material provided between first and second electrodes such that charge carriers can move between the first and second electrodes and the light-emissive material, wherein the device includes a layer of a polymer blend provided between the first and second electrodes, phase separation of the polymers in the polymer blend having been induced in at least a portion of the polymer blend so as to control the propagation of light emitted by the light-emissive material in a predetermined direction.

Abstract: The present invention relates to an organic/inorganic hybrid thin film passivation layer comprising an organic polymer passivation layer prepared by a UV/ozone curing process and an inorganic thin film passivation layer for blocking moisture and oxygen transmission of an organic electronic device fabricated on a substrate and improving gas barrier property of a plastic substrate; and a fabrication method thereof. Since the organic/inorganic hybrid thin film passivation layer of the present invention converts the surface polarity of an organic polymer passivation layer into hydrophilic by using the UV/ozone curing process, it can improve the adhesion strength between the passivation layer interfaces, increase the light transmission rate due to surface planarization of the organic polymer passivation layer, and enhance gas barrier property by effectively blocking moisture and oxygen transmission.

Abstract: The present invention provides a method for an organic thin film solar cell and an organic thin film solar cell manufactured by the same, which can reduce manufacturing cost by simplifying manufacturing process, ensure long-lasting durability and stability, and improve energy conversion efficiency of the solar cell.

Abstract: A fused polycyclic compound is represented by general formula [1]: wherein at least one of R1 to R16 is selected from a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted amino group, an aryl group which may have a substituent, and a heterocyclic group which may have a substituent. An organic light-emitting element includes the fused polycyclic compound.

Abstract: Disclosed is a light-emitting material including a polysilsesquioxane having a ladder structure with photoactive groups bonded to a siloxane backbone. In addition to superior heat resistance and mechanical property, the light-emitting material provides improved cotability and film property when prepared into a thin film. Further, it provides higher luminous efficiency than the existing organic-based light-emitting material.

Abstract: An electronic device containing a polythiophene wherein R represents a side chain, m represents the number of R substituents; A is a divalent linkage; x, y and z represent, respectively, the number of Rm substituted thienylenes, unsubstituted thienylenes, and divalent linkages A, respectively, in the monomer segment subject to z being 0 or 1, and n represents the number of repeating monomer segments in the polymer or the degree of polymerization.

Abstract: An organic semiconducting compound comprising the structure of formula (I): where Ar1, Ar2, Ar3 and Ar4 independently comprise monocyclic aromatic rings and at least one of Ar1, Ar2, Ar3 and Ar4 is substituted with at least one substituent X, which in each occurrence may be the same or different and is selected from the group consisting of (i) optionally substituted straight, branched or cyclic alkyl chains with 1 to 20 carbon atoms, alkoxy, amino, amido, silyl or alkenyl, or (ii) a polymerisable or reactive group selected from the group consisting of halogens, boronic acids, diboronic acids and esters of boronic acids and diboronic acids, alkylene groups and stannyl groups, and where Ar1, Ar2, Ar3 and Ar4 may each optionally be fused to one or more further rings. The organic semiconducting compound is used as an active layer in an organic semiconducting device such as a thin film transistor.

Abstract: Disclosed is an organic semiconductor material, layer or component, comprising a copolymer of the formula wherein v and w each generally are from the range 4 to 1000; A is a benzodithiophene repeating unit of the formula II or III and COM is selected from certain arylene-type repeating units, and combinations thereof, with further symbols as defined in the claims. The present copolymers, as well as composites thereof, may be used as semiconductor in the preparation of electronic devices such as photodiodes, organic field effect transistors and especially organic photovoltaic devices such as solar cells.

Abstract: A thiophene compound having a phosphate group, for example, one represented by the formula [1]. The compound has high resistance to heat and oxidation and can be improved in solubility or dispersibility in various solvents. (In the formula, R1 and R2 each independently represents, e.g., hydrogen, halogeno, cyano, or phenyl optionally substituted by W; and R3 to R6 each independently represents —OR7, SR8, or —NR92, provided that R7 to R9 each independently represents hydrogen, C1-10 alkyl, or phenyl optionally substituted by W and W represents halogeno, cyano, nitro, hydroxyl, mercapto, amino, formyl, carboxy, C1-10 alkyl, etc.

Abstract: Example embodiments of the present invention relate to an organic insulator composition, an organic insulating film having the organic insulator composition, an organic thin film transistor having the organic insulating film, an electronic device having the organic thin film transistor and methods of forming the same. Other example embodiments of the present invention relate to an organic insulator composition including a fluorinated silane compound that may be used to improve the charge carrier mobility and hysteresis of an organic thin film transistor. An organic insulator composition including a fluorinated silane compound and an organic thin film transistor using the same is provided. The hysteresis and physical properties, e.g., threshold voltage and/or charge carrier mobility, of the organic thin film transistor may be improved by the use of the organic insulator composition.

Abstract: The present invention discloses a soluble and air-stable perylene diimide (PDI) derivative to function as an N-type organic semiconductor material. In the PDI derivative of the present invention, the core thereof is substituted by electron withdrawing groups, and the side chains thereof are substituted by benzene functional groups, whereby are promoted the solubility and air-stability of the molecule. The PDI derivative of the present invention can be used to fabricate an organic semiconductor element via a soluble process at a low temperature and under an atmospheric environment.

Abstract: A soluble oligomeric compound for forming an organic thin film transistor, has repeat units comprising two or more fused thiophene residues. The repeat units comprise the structure: The compound may include two or more terminating groups comprising solvating groups. A solution of the material can be used to form a thin film transistor by ink jet printing.

Abstract: A metal complex which has a metal complex structure showing light emission from triplet excited state, and has a monovalent group derived from carbazole, and a light-emitting device using said metal complex.

Abstract: A method of manufacturing a MESFET using ceramic materials includes providing a substrate; providing a ceramic semiconductor material to apply onto the substrate to form a first ceramic semiconductor layer; providing a ceramic semiconductor material which is blended with ions, wherein the ceramic semiconductor material is applied onto a central part of the first ceramic semiconductor layer to form a second ceramic semiconductor layer with ions; providing another ion-mixed ceramic semiconductor material is provided to apply over both sides of the first ceramic semiconductor layer to form a third ceramic semiconductor layer having ions; and respectively plating the second and third ceramic semiconductor layers with metal layers so that the second ceramic semiconductor layer has a gate electrode and the third ceramic semiconductor layer has a source and a drain. A transistor obtained by this method can be put into broader range of applications compared to III-V group transistor.

Abstract: An electric device includes: a pair of electrodes, an organic semiconductor film and an organic film formed on a surface of at least one of the electrodes, wherein the organic this film includes a nonconjugated organic compound having a plurality of coupling groups coupled with the electrodes.

Abstract: An organic light-emitting device and a method of manufacturing the same. The organic light-emitting device includes a substrate, a first electrode formed on the substrate, a second electrode, an emission layer between the first electrode and the second electrode, a hole transport layer between the first electrode and the emission layer, and an electron transport layer between the second electrode and the emission layer. The hole transport layer includes a first hole transport unit comprising: a first hole transport layer comprising a hole transporting material, a third hole transport layer formed on the first hole transport layer and comprising a charge generating material; and a fifth hole transport layer formed on the third hole transport layer and comprising the hole transporting material.

Abstract: An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer provided on the conductive substrate, and an outermost surface layer of the electrophotographic photoreceptor includes a cured film of a composition containing a charge transporting material having a chain polymerizable functional group and at least one selected from a nitroso compound, a nitrone compound or a nitro compound.