Abstract: Disclosed herein are organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

Abstract: Disclosed herein are organic photosensitive optoelectronic device comprising a first layer comprising one or more of a first layer material, a second layer comprising one or more of a second layer material, and a third layer comprising one or more of a third layer material. The second layer may be dissolved in a semi-orthogonal solvent. The first layer and the third layer may be very slightly soluble or practically insoluble in the semi-orthogonal solvent.

Abstract: There is disclosed ultrathin film material templating layers that force the morphology of subsequently grown electrically active thin films have been found to increase the performance of small molecule organic photovoltaic (OPV) cells. There is disclosed electron-transporting material, such as hexaazatriphenylene-hexacarbonitrile (HAT-CN) can be used as a templating material that forces donor materials, such as copper phthalocyanine (CuPc) to assume a vertical-standing morphology when deposited onto its surface on an electrode, such as an indium tin oxide (ITO) electrode. It has been shown that for a device with HAT-CN as the templating buffer layer, the fill factor and short circuit current of CuPc:C60 OPVs were both improved compared with cells lacking the HAT-CN template. This is explained by the reduction of the series resistance due to the improved crystallinity of CuPc grown onto the ITO surface.

Abstract: Embodiments of the disclosure provide methods and apparatus for a shadow mask. In one embodiment, a shadow mask is provided and includes a frame made of a metallic material, and one or more mask patterns coupled to the frame, the one or more mask patterns comprising a metal having a coefficient of thermal expansion less than or equal to about 14 microns/meter/degrees Celsius and having a plurality of openings formed therein, the metal having a thickness of about 5 microns to about 50 microns and having borders formed therein each defining a fine opening having a recessed surface formed on a substrate contact surface thereof, wherein each of the one or more mask patterns have a flatness of less than about 150 microns across a surface area of about 70,000 square millimeters.

Abstract: Disclosed herein are organic photosensitive optoelectronic device comprising a first layer comprising one or more of a first layer material, a second layer comprising one or more of a second layer material, and a third layer comprising one or more of a third layer material. The second layer may be dissolved in a semi-orthogonal solvent. The first layer and the third layer may be very slightly soluble or practically insoluble in the semi-orthogonal solvent.

Abstract: Methods of processing substrates are described herein that include depositing a patterned polymer precursor layer by inkjet printing on a substrate comprising a dielectric material, curing the precursor layer to form a patterned polymer layer, and exposing the substrate, with the patterned polymer layer, to a remote plasma etch chemistry selective to the dielectric material. These methods can be performed on display substrates, particularly OLED and/or quantum dot display substrates.

Abstract: Methods for increasing the degree of curing and/or reducing the volatile photoinitiator concentration in cured polymeric film, and particularly in cured polymeric films in a multilayered thin film encapsulation stack are provided. Also provided are highly crosslinked and/or low-outgassing thin polymeric films and encapsulation stacks made using the methods.

Abstract: Disclosed herein are organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

Abstract: Methods for increasing the degree of curing and/or reducing the volatile photoinitiator concentration in cured polymeric film, and particularly in cured polymeric films in a multilayered thin film encapsulation stack are provided. Also provided are highly crosslinked and/or low-outgassing thin polymeric films and encapsulation stacks made using the methods.

Abstract: Disclosed herein are stable organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material having a sufficiently high glass transition temperature, e.g., higher than the temperature or temperature range at which the device typically operates, higher than a highest operating temperature of the device, higher than a threshold temperature value, etc. and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

Abstract: Methods and apparatus (400) for a shadow mask are provided. A mask pattern (302) includes a mandrel (305) comprising a material having a coefficient of thermal expansion less than or equal to about 7 microns/meter/degrees Celsius with a conductive material formed thereon, and a dielectric material (310) having a plurality of openings (318) formed therein exposing at least portion of the conductive material. The dielectric material (310) comprises a pattern of volumes, each of the volumes has a major dimension of about 5 microns to about 20 microns.

Abstract: Disclosed are methods and apparatus for a shadow mask. A shadow mask (200), comprising: a frame (210) made of a metallic material, and one or more mask patterns (205) coupled to the frame (210), the one or more mask patterns (205) comprising a metal having a coefficient of thermal expansion less than or equal to about 14 microns/meter/degrees Celsius and having a plurality of openings (215) formed therein, the metal having a thickness of about 5 microns to about 50 microns and having borders (355) formed therein each defining a fine opening (215) having a recessed surface (370) formed on a substrate contact surface (375) thereof.

Abstract: Disclosed herein are organic photosensitive optoelectronic devices comprising at least one hybrid planar-graded heterojunction. In particular, organic photosensitive optoelectronic devices are disclosed having two electrodes (110), (150) in superposed relation, a graded heterojunction layer (130) located between the two electrodes, and at least one photoactive layer (120), (140) adjacent to and interfacing with the graded heterojunction layer.

Abstract: Disclosed herein are organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

Abstract: A shadow mask (200) includes a frame (210) made of a metallic material, and one or more mask patterns (205) coupled to the frame (210), the one or more mask patterns (205) comprising a metallic material having a coefficient of thermal expansion less than or equal to about 14 microns/meter/degrees Celsius and having a plurality of openings (215) formed therein, the metallic material having a thickness of about 5 microns to about 50 microns and having a pitch tolerance between openings (215) of about +/?3 microns across a length of about 160 millimeters.

Abstract: Disclosed herein are methods for fabricating an organic photovoltaic device comprising depositing an amorphous organic layer and a crystalline organic layer over a first electrode, wherein the amorphous organic layer and the crystalline organic layer contact one another at an interface; annealing the amorphous organic layer and the crystalline organic layer for a time sufficient to induce at least partial crystallinity in the amorphous organic layer; and depositing a second electrode over the amorphous organic layer and the crystalline organic layer. In the methods and devices herein, the amorphous organic layer may comprise at least one material that undergoes inverse-quasi epitaxial (IQE) alignment to a material of the crystalline organic layer as a result of the annealing.

Abstract: Disclosed herein are organic photosensitive devices including a first subcell and a second subcell and having at least one exciton-blocking charge carrier filter disposed between the subcells. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

Abstract: Doping metal oxide charge transport material with an organic molecule lowers electrical resistance while maintaining transparency and thus is optimal for use as charge transport materials in various organic optoelectronic devices such as organic photovoltaic devices and organic light emitting devices.

Abstract: A method for fabricating an organic light emitting device stack involves depositing a first conductive electrode layer over a substrate; depositing a first set of one or more organic layers, wherein at least one of the first set of organic layers is a first emissive layer and one of the first set of organic layers is deposited by a solution-based process that utilizes a first solvent; depositing a first conductive interlayer by a dry deposition process; and depositing a second set of one or more organic layers, wherein at least one of the second set of organic layers is a second emissive layer and one of the second set of organic layers is deposited by a solution-based process that utilizes a second solvent, wherein all layers that precede the layer deposited using the second solvent are insoluble in the second solvent.

Abstract: Disclosed herein are organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).