Abstract:
Devices include a substrate, a collector layer, and an emitter layer positively biased relative to the collector. Devices further include a semiconductor layer located between the collector and the emitter. The semiconductor layer includes an organic semiconductor polymer with a donor-acceptor structure.
Abstract:
Apparatus and method for treating a substrate, for example texturing a substrate. In some embodiments, a masking material is applied to a surface of the substrate in a predetermined pattern, the surface thereafter contacted with an etchant that removes the masking material. Contacting the surface with the etchant produces multiple co-located textures. In other embodiments, the masking step can be eliminated, and the etchant is applied in a predetermined pattern to produce multiple co-located textures. In still other embodiments, the substrate has a chemical composition, and the substrate is exposed to a leachant that leaches at least one constituent of the chemical composition to produce a substrate with a varying chemical composition at the substrate surface.
Abstract:
Described herein are electronics that incorporate heterocyclic organic compounds. More specifically, described herein are organic electronics systems that are combined with donor-acceptor organic semiconductors, along with methods for making such devices, and uses thereof.
Abstract:
A method of making polycrystalline silicon (p-Si), including: depositing amorphous silicon to produce an amorphous silicon super-mesa; dehydrogenating the amorphous silicon; patterning the super-mesa to produce a patterned substrate; depositing a capping oxide layer on the amorphous silicon on the patterned substrate; heating the capped, patterned substrate to the crystallization temperature of the a-Si; and flash lamp annealing the patterned substrate with a xenon lamp to produce p-Si having at least one super-mesa, and the super-mesa having supersized grains. Also disclosed are p-Si articles and devices incorporating the articles, and an apparatus for making the p-Si articles.
Abstract:
Glass substrates comprising an A-side upon which silicon thin film transistor devices can be fabricated and a B-side having a substantially homogeneous organic film thereon are described. The organic film includes a moiety that reduces voltage generation by contact electrification or triboelectrification. Methods of manufacturing the glass substrates and example devices incorporating the glass substrates are also described.
Abstract:
An organic thin film transistor comprising a first gate, a second gate, a semiconducting layer located between the first gate and second gate and configured to operate as a channel and a source electrode and a drain electrode connected to opposing sides of the semiconductor layer. The organic thin film transistor also comprises a first dielectric layer located between the first gate and the semiconducting layer in a direction of current flow through the semiconductor layer, the first dielectric layer comprising a polar elastomeric dielectric material that exhibits a double layer charging effect when a set voltage is applied to the first gate and a second dielectric layer located between the second gate and the semiconducting layer.
Abstract:
A method of making a device substrate article having a device modified substrate supported on a glass carrier substrate, including: treating at least a portion of the first surface of a device substrate, at least a portion of a first surface of a glass carrier, or a combination thereof, wherein the treating produces a surface having: silicon; oxygen; carbon; and fluorine amounts; and a metal to fluorine ratio as defined herein; contacting the treated surface with an untreated or like-treated counterpart device substrate or glass carrier substrate to form a laminate comprised of the device substrate bonded to the glass carrier substrate; modifying at least a portion of the non-bonded second surface of the device substrate of the laminate with at least one device surface modification treatment; and separating the device substrate having the device modified second surface from the glass carrier substrate.
Abstract:
Surface modification layers (30) and associated heat treatments, that may be provided on a sheet (20), a carrier (10), or both, to control both room-temperature van der Waals (and/or hydrogen) bonding and high temperature covalent bonding between the thin sheet and carrier. The room-temperature bonding is controlled so as to be sufficient to hold the thin sheet and carrier together during vacuum processing, wet processing, and/or ultrasonic cleaning processing, for example. And at the same time, the high temperature covalent bonding is controlled so as to prevent a permanent bond between the thin sheet and carrier during high temperature processing, as well as maintain a sufficient bond to prevent delamination during high temperature processing.
Abstract:
A catalyst-free CVD method for forming graphene. The method involves placing a substrate within a reaction chamber, heating the substrate to a temperature between 600° C. and 1100° C., and introducing a carbon precursor into the chamber to form a graphene layer on a surface of the substrate. The method does not use plasma or a metal catalyst to form the graphene.
Abstract:
Apparatus and method for treating a substrate, for example texturing a substrate. In some embodiments, a masking material is applied to a surface of the substrate in a predetermined pattern, the surface thereafter contacted with an etchant that removes the masking material. Contacting the surface with the etchant produces multiple co-located textures. In other embodiments, the masking step can be eliminated, and the etchant is applied in a predetermined pattern to produce multiple co-located textures. In still other embodiments, the substrate has a chemical composition, and the substrate is exposed to a leachant that leaches at least one constituent of the chemical composition to produce a substrate with a varying chemical composition at the substrate surface.