Abstract: A display comprises a substrate and a light-emitting device disposed on the substrate, wherein the substrate comprises a semiconducting material and a circuit for controlling the light-emitted from the light-emitting device. A light-emitting device includes a light-emitting material comprising semiconductor nanocrystals and an electrode in electrical connection with the light-emitting material on a side thereof remote from the substrate.

Abstract: An organic electrical device can include a first dielectric substrate including a PVDF-TrFe-CFE terpolymer, a first semiconductor region coupled to a first surface of the first dielectric substrate, and a first gate region coupled to a second surface of the first dielectric substrate, the second surface opposite the first surface and opposite the first semiconductor region. The organic electrical device can include an organic field-effect transistor (OFET), comprising the first gate region, the first dielectric substrate, a first source region, and a first drain region respectively electrically coupled to the first semiconductor region. An electrostrictive actuator or mechanical sensor can be co-integrated on the first dielectric substrate, the actuator or sensor including first and second conductive regions located on opposite surfaces of the first dielectric substrate. The actuator or sensor can be electrically coupled to the OFET, and controlled at least in part by the OFET.

Abstract: A laminated graphene device is demonstrated as a cathode. In one example the devices include organic photovoltaic devices. The measured properties demonstrate work-function matching via contact doping. Devices and method shown also provide increased power conversion efficiency due to transparency. These findings indicate that flexible, light-weight all carbon devices, such as solar cells, can be constructed using graphene as the cathode material.

Abstract: An identification friend or foe (IFF) system and method can covertly identify an object as friend or foe (FoF). An encoded illumination signal can be calculated using a detected ambient signal and an identification (ID) signal and emitted. The encoded illumination signal can be detected by analyzing a detected ambient signal and decoded using a specified key.

Abstract: An apparatus comprises a flexible circuit substrate that includes a body portion and at least one connector portion formed monolithically with the body portion. The connector portion is shaped by at least one of one or more bends of the flexible circuit substrate or one or more folds of the flexible circuit substrate, and the connector portion is configured to be received in a receptacle of a connector device. The apparatus also includes at least one electrode formed on the connector portion and configured to make electrical contact with an electrical conductor of the receptacle of the connector device, at least one electronic component on the flexible circuit substrate, and interconnect to provide electrical continuity from the electrode to the electronic component.

Abstract: An optical structure can include a nanocrystal on a surface of an optical waveguide in a manner to couple the nanocrystal to the optical field of light propagating through the optical waveguide to generate an emission from the nanocrystal.

Abstract: Methods for depositing nanomaterial onto a substrate are disclosed. Also disclosed are compositions useful for depositing nanomaterial, methods of making devices including nanomaterials, and a system and devices useful for depositing nanomaterials.

Abstract: An indirect bandgap thin film semiconductor circuit can be combined with a compound semiconductor LED such as to provide an active matrix LED array that can have high luminous capabilities such as for a light projector application. In another example, a highly efficient optical detector is achievable through the combination of indirect and direct bandgap semiconductors. Applications can include display technologies, light detection, MEMS, chemical sensors, or piezoelectric systems. An LED array can provide structured illumination, such as for a light and pattern source for projection displays, such as without requiring spatial light modulation (SLM). An example can combine light from separate monolithic light projector chips, such as providing different component colors. An example can provide full color from a single monolithic light projector chip, such as including selectively deposited phosphors, such as to contribute individual component colors to an overall color of a pixel.

Abstract: DNA-based temperature sensor for measuring temperature through a transition of one or more strands of DNA from a coupled configuration to a decoupled configuration at a temperature threshold, and a fluorescent dye adapted to emit fluorescence when the DNA is in the coupled configuration, includes a receptacle adapted to receive the DNA and the fluorescent dye in a solution, an imaging device adapted to acquire an image of fluorescence emitted from the solution, the image having a plurality of regions, and a processor adapted to determine a plurality of fluorescence levels corresponding to each of the plurality of regions of the image and to generate a temperature map based on the determined fluorescence levels. A method for measuring temperature and a DNA-based temperature sensing solution are also provided.

Abstract: An optical structure can include a nanocrystal on a surface of an optical waveguide in a manner to couple the nanocrystal to the optical field of light propagating through the optical waveguide to generate an emission from the nanocrystal.

Abstract: Methods for depositing nanomaterial onto a substrate are disclosed. Also disclosed are compositions useful for depositing nanomaterial, methods of making devices including nanomaterials, and a system and devices useful for depositing nanomaterials.

Abstract: An indirect bandgap thin film semiconductor circuit can be combined with a compound semiconductor LED such as to provide an active matrix LED array that can have high luminous capabilities such as for a light projector application. In another example, a highly efficient optical detector is achievable through the combination of indirect and direct bandgap semiconductors. Applications can include display technologies, light detection, MEMS, chemical sensors, or piezoelectric systems. An LED array can provide structured illumination, such as for a light and pattern source for projection displays, such as without requiring spatial light modulation (SLM). An example can combine light from separate monolithic light projector chips, such as providing different component colors. An example can provide full color from a single monolithic light projector chip, such as including selectively deposited phosphors, such as to contribute individual component colors to an overall color of a pixel.

Abstract: Apparatus and methods can include an optical waveguide coupled to a photonic crystal comprising a dielectric material, the photonic crystal located on an exterior surface of the optical waveguide and comprising a first surface including a first array of periodic features on or within the dielectric material, the array extending in at least two dimensions and including an effective dielectric permittivity different from the surrounding dielectric material. In an example, the periodic features include a specified lattice constant, the periodic features configured to extract a portion of propagating optical energy from the waveguide through the photonic crystal, the portion determined at least in part by the specified lattice constant.

Abstract: An apparatus comprises a thin-film bulk acoustic resonator such as including an acoustic mirror, a piezoelectric region acoustically coupled to the acoustic mirror, and first and second conductors electrically coupled to the piezoelectric region. In an example, an integrated circuit substrate can include an interface circuit connected to the first and second conductors of the resonator, the integrated circuit substrate configured to mechanically support the resonator. An example can include an array of such resonators co-integrated with the interface circuit and configured to detect a mass change associated with one or more of a specified protein binding, a specified antibody-antigen coupling, a specified hybridization of a DNA oligomer, or an adsorption of specified gas molecules.

Abstract: A software-controlled maskless optical lithography system uses fluorescence feedback to control an aspect of the lithography, such as light source dose, wavelength, or flashing instances or duration, spatial light modulator (SLM) pattern, an optics parameter, a beamsplitter control parameter, or movement or positioning of a stage carrying a target workpiece, such as a semiconductor wafer.

Abstract: The present invention relates to flexible devices including semiconductor nanocrystals, arrays including such devices, systems including the foregoing, and related methods. In one embodiment, a flexible light-emitting device includes a flexible substrate including a first electrode, an emissive layer comprising semiconductor nanocrystals disposed over the substrate, and second electrode disposed over the emissive layer comprising semiconductor nanocrystals, wherein, when the device is curved, the emissive layer comprising semiconductor nanocrystals lies substantially in the neutral plane of the device. In another embodiment, a light-emitting device includes an emissive layer comprising semiconductor nanocrystals disposed between two flexible substrates, a first electrode disposed over the emissive layer comprising semiconductor nanocrystals, and a second electrode disposed under the emissive layer comprising semiconductor nanocrystals.

Abstract: An OFET includes a ferroelectric gate dielectric permitting electrical reprogramming, such as to implement an electrically re-programmable array logic (PAL) or a field-programmable gate array (FPGA). Methods of constructing such an OFET, PAL, or FPGA, can including roll printing. An OFET on a piezoelectric substrate provides local amplification in an active matrix. Methods of constructing such an OFET on a piezoelectric substrate can including rolling printing. Techniques permit direct measurement of trap distribution, such as across the channel length of an OFET device. Techniques permit direct measurement of the size and location of an electrically active grain structure in OFET devices. Techniques permit confirmation of the mechanism of operation of a number of OFET techniques, including use of silanes or thiols, or OFET operation or aging. Techniques provide an internal circuit probe, such as for a ferroelectric gate dielectric OFET or a piezoelectric substrate OFET, for example.

Abstract: An identification friend or foe (IFF) system and method can covertly identify an object as friend or foe (FoF). An encoded illumination signal can be calculated using a detected ambient signal and an identification (ID) signal and emitted. The encoded illumination signal can be detected by analyzing a detected ambient signal and decoded using a specified key.

Abstract: A software-controlled maskless optical lithography system uses fluorescence feedback to control an aspect of the lithography, such as light source dose, wavelength, or flashing instances or duration, spatial light modulator (SLM) pattern, an optics parameter, a beamsplitter control parameter, or movement or positioning of a stage carrying a target workpiece, such as a semiconductor wafer.

Abstract: An indirect bandgap thin film semiconductor circuit can be combined with a compound semiconductor LED such as to provide an active matrix LED array that can have high luminous capabilities such as for a light projector application. In another example, a highly efficient optical detector is achievable through the combination of indirect and direct bandgap semiconductors. Applications can include display technologies, light detection, MEMS, chemical sensors, or piezoelectric systems. An LED array can provide structured illumination, such as for a light and pattern source for projection displays, such as without requiring spatial light modulation (SLM). An example can combine light from separate monolithic light projector chips, such as providing different component colors. An example can provide full color from a single monolithic light projector chip, such as including selectively deposited phosphors, such as to contribute individual component colors to an overall color of a pixel.