Abstract: The invention includes embodiments that relate to a method of making an organic light-emitting device comprising at least one bilayer structure. The method comprises providing at least one first layer comprising at least one cross-linkable organic material and at least one photo acid generator; exposing the first layer to a radiation source to afford a cross-linked first layer; and disposing at least one second layer on the cross-linked first layer. The method affords a bilayer structure having an enhanced structural integrity relative to the corresponding bilayer structure in which the first layer is not cross-linked. The invention also includes embodiments that relate to an organic light emitting device.

Abstract: Described herein is a transparent electrode comprising at least one optically transparent electrically conductive layer; and at least one optically transparent intermediate layer, wherein said optically transparent conductive layer is in contact with said optically intermediate layer, and wherein said optically transparent conductive layer and said optically transparent intermediate layer together transmit at least 50 percent of incident light having a wavelength in a range between about 200 and about 1200 nanometers, said optically transparent conductive layer having a bulk conductivity at least 100 Siemens per centimeter (S/cm), said optically transparent intermediate layer being comprised of a material having a bulk electrical conductivity at room temperature less than 10?12 Siemens per centimeter and a band gap of 3.5 eV. Described herein are also methods for forming a transparent electrode, and transparent electronic devices comprising at least one transparent electrode.

Abstract: Disclosed is an opto-electroactive device comprising a metallocene of the formula wherein M is zirconium or hafnium; X is halogen and R1–R5 are each independently hydrogen, aryl, alkyl, halogen or —Si(R6)3; or wherein at least two adjacent R substituents on at least one ring are joined to form a fused ring, which may be unsubstituted or substituted with aryl, alkyl, halogen or —Si(R6)3; or wherein the R1 substituents on each ring are joined to link the rings in an ansa bridge, and wherein R6 is an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group. Also disclosed is a method for making an opto-electroactive device comprising a metallocene.

Abstract: A light-emitting device comprises a light-emitting member, which comprises two electrodes, at least two organic electroluminescent (“EL”) materials disposed between the electrodes, a charge blocking material disposed between the electrodes, and at least one photoluminescent (“PL”) material. The light-emitting member emits electromagnetic (“EM”) radiation having a first spectrum in response to a voltage applied across the two electrodes. The PL material absorbs a portion of the EM radiation emitted by the light-emitting member and emits EM radiation having second spectrum different than the first spectrum. Each of the organic EL materials emits EM radiation having a wavelength range selected from the group consisting of blue and red wavelength ranges.

Abstract: A light-emitting device comprises a light-emitting member, which comprises two electrodes, at least two organic electroluminescent (“EL”) materials disposed between the electrodes, a charge blocking material disposed between the electrodes, and at least one photoluminescent (“PL”) material. The light-emitting member emits electromagnetic (“EM”) radiation having a first spectrum in response to a voltage applied across the two electrodes. The PL material absorbs a portion of the EM radiation emitted by the light-emitting member and emits EM radiation having second spectrum different than the first spectrum. Each of the organic EL materials emits EM radiation having a wavelength range selected from the group consisting of blue and red wavelength ranges.

Abstract: Disclosed is a polymer composition derived from a bis-phenol comprising a conjugated aromatic radical, optionally comprising nitrogen. Suitable bis-phenols as well as methods for making said polymer are also disclosed. Also disclosed are electroactive layers comprising said polymer and electroactive devices comprising said layer.

Abstract: Disclosed is an opto-electroactive device comprising a metallocene of the formula wherein M is zirconium or hafnium; X is halogen and R1-R5 are each independently hydrogen, aryl, alkyl, halogen or —Si(R6)3; or wherein at least two adjacent R substituents on at least one ring are joined to form a fused ring, which may be unsubstituted or substituted with aryl, alkyl, halogen or —Si(R6)3; or wherein the R1 substituents on each ring are joined to link the rings in an ansa bridge, and wherein R6 is an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group. Also disclosed is a method for making an opto-electroactive device comprising a metallocene.

Abstract: The invention relates to a multi-layered device and a method for making a multi-layered device. The method comprises the steps of determining a desired sequence of two or more polymers in a multi-layered device; for each of the two or more polymers in the desired sequence, identifying a solubility window in a solubility graph, and selecting a solvent based on the solubility window such that the solvent does not dissolve a preceding polymer in the desired sequence; depositing each of the two or more polymers from its selected solvent; and forming a multi-layered device having the two or more polymers in the desired sequence.

Abstract: The present invention is directed to an organic light emitting device capable of white light emissions and a method for making the same. According to one embodiment, the invention relates to an organic light emitting device capable of white light emissions, the device comprising at least one light emissive polymer and at least one small molecule material in two layers adjacent to each other, wherein the at least one small molecule material has a wide enough bandgap and a high enough electron mobility to function as both a hole blocking layer and an electron transport layer.

Abstract: A highly transparent non-metallic cathode is disclosed that comprises a metal-doped organic electron injection layer that is in direct contact with a transparent non-metallic electron injecting cathode layer, such as indium tin oxide (ITO), wherein the metal-doped organic electron injection layer also functions as an exciton blocking or hole blocking layer. The metal-doped organic electron injection layer is created by diffusing an ultra-thin layer of about 5-10 ? of a highly electropositive metal such as Li throughout the layer. A representative embodiment of the highly transparent non-metallic cathode comprises a layer of ITO, a layer of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), which acts as an electron injection, exciton blocking, and hole blocking layer, and an ultra-thin layer of lithium, which degenerately dopes the layer of BCP, improving the electron injecting properties of the BCP layer.

Abstract: A highly transparent non-metallic cathode is disclosed that comprises a metal-doped organic electron injection layer that is in direct contact with a transparent non-metallic electron injecting cathode layer, such as indium tin oxide (ITO), wherein the metal-doped organic electron injection layer also functions as an exciton blocking or hole blocking layer. The metal-doped organic electron injection layer is created by diffusing an ultra-thin layer of about 5-10 Å of a highly electropositive metal such as Li throughout the layer. A representative embodiment of the highly transparent non-metallic cathode comprises a layer of ITO, a layer of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), which acts as an electron injection, exciton blocking, and hole blocking layer, and an ultra-thin layer of lithium, which degenerately dopes the layer of BCP, improving the electron injecting properties of the BCP layer.

Abstract: A novel class of low reflectivity, high transparency, non-metallic cathodes useful for a wide range of electrically active, transparent organic devices are disclosed. As a representative embodiment, the highly transparent non-metallic cathode of an OLED employs a thin film of copper phthalocyanine (CuPc) capped with a film of low-power, radio-frequency sputtered indium-tin-oxide (ITO). The CuPc prevents damage to the underlying organic layers during the ITO sputtering process. A theory of the invention is presented which suggests that damage-induced states at the non-metallic cathode/organic film interface are responsible for the efficient electron injection properties of the cathode. Due to the low reflectivity of the non-metallic cathode, a non-antireflection-coated, non-metallic-cathode-containing TOLED is disclosed that is 85% transmissive in the visible, emitting nearly identical amounts of light in the forward and back-scattered directions.

Abstract: Organic light emitting devices are disclosed which include a heterostructure for producing electroluminescence wherein the heterostructure includes a non-metallic cathode. As a representative embodiment of the present invention, the heterostructure for producing electroluminescence includes in order, a non-metallic cathode layer (1), an electron injecting interface layer (6), an electron transporting layer (2), a hole transporting layer (3), and an anode layer (4); wherein the non-metallic cathode layer (1) includes an indium-tin oxide layer in contact with a copper phthalocyanine layer which functions as the electron injecting interface layer (6).

Abstract: A novel class of low reflectivity, high transparency, non-metallic cathodes useful for a wide range of electrically active, transparent organic devices are disclosed. As a representative embodiment, the highly transparent non-metallic cathode of an OLED employs a thin film of copper phthalocyanine (CuPc) capped with a film of low-power, radio-frequency sputtered indium-tin-oxide (ITO). The CuPc prevents damage to the underlying organic layers during the ITO sputtering process. A theory of the invention is presented which suggests that damage-induced states at the non-metallic cathode/organic film interface are responsible for the efficient electron injection properties of the cathode. Due to the low reflectivity of the non-metallic cathode, a non-antireflection-coated, non-metallic-cathode-containing TOLED is disclosed that is 85% transmissive in the visible, emitting nearly identical amounts of light in the forward and back-scattered directions.

Abstract: Lasers comprising a substrate and a layer of organic material over the substrate. The organic material includes host and dopant materials that result in the laser emission of a desired color when pumped by optical pump energy. Host materials include CBP and tris-(8-hydroxyquinoline) aluminum, which when combined with dopant materials such as coumarin-47, coumarin-30, perylene, rhodamine-6G, DCM, DCM2, and pyrromethane-546 result in the efficient lasing of colors such as blue, green and yellow.