نتایج جستجو برای: organic semiconductor
تعداد نتایج: 258668 فیلتر نتایج به سال:
High-quality thin films of conjugated molecules with smooth interfaces are important to assist the advent of organic electronics. Here, we report on the layer-by-layer growth of the organic semiconductor molecule p-sexiphenyl (6P) on the transparent electrode material graphene. Low energy electron microscopy and micro low energy electron diffraction reveal the morphological and structural evolu...
Charge injection at metal/organic interfaces dictates the performance, lifetime, and stability of organic electronic devices. We demonstrate that interface dipole theory, originally developed to describe Schottky contacts at metal/semiconductor interfaces, can also accurately describe the injection barriers in real organic electronic devices. It is found that theoretically predicted hole inject...
Abstract We propose the design and fabrication of a coplanar electrode structure for an organic metal–semiconductor field-effect transistor (OMESFET), with gate self-aligned between source drain electrodes. first used nanoimprint lithography (NIL) to define channel area device on patterned metal, then chemical wet etching create electrodes by removing metal in area. After etching, was deposited...
We report charge transport measurements in nanoscale vertical pillar structures incorporating ultrathin layers of the organic semiconductor poly(3-hexylthiophene) (P3HT). P3HT layers with thickness down to 5 nm are gently top-contacted using wedging transfer, yielding highly reproducible, robust nanoscale junctions carrying high current densities (up to 106 A/m2). Current-voltage data modeling ...
Ferroelectric organic field-effect transistors (Fe-OFETs) have been attractive for a variety of non-volatile memory device applications. One of the critical issues of Fe-OFETs is the improvement of carrier mobility in semiconducting channels. In this article, we propose a novel interfacial buffering method that inserts an ultrathin poly(methyl methacrylate) (PMMA) between ferroelectric polymer ...
Polymer solar cells have been characterized during and after x-ray irradiation. The open circuit voltage, dark current and power conversion efficiency show degradation consistent with the generation of defect states in the polymer semiconductor. The polymer solar cell device remained functional with exposure to a considerable dose (500 krad (SiO(2))) and showed clear signs of recovery upon remo...
A synthetic pathway is introduced to construct fluorescent hybrid polymers with supramolecular assemblies as building blocks. The supramolecular assembly is composed of nanoparticle core of II~IV group semiconductor and organic compound shell containing polymerizable groups. Their homopolymerization and copolymerization with vinyl monomers produce soluble and fluorescent hybrid polymers. Light ...
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