摘要:
The new fluorocarbon-functionalized and/or heterocycle-modified polythiophenes, in particular, α,ω-diperfluorohexylsexithiophene DFH-6T can be straightforwardly prepared in high yield and purity. Introduction of such modifications to a thiophene core affords enhanced thermal stability and volatility, and increased electron affinity versus the unmodified compositions of the prior art. Evaporated films behave as n-type semiconductors, and can be used to fabricate thin film transistors with FET mobilities ˜0.01 cm2/Vs—some of the highest reported to date for n-type organic semiconductors.
摘要:
Disclosed are new conjugated compounds (e.g., monomers and polymers) that include ladder-type moieties which can be used for preparing semiconducting materials. Such conjugated compounds can exhibit high n-type carrier mobility and/or good current modulation characteristics. Compounds of the present teachings also can exhibit ambipolar semiconducting activity. In addition, the compounds of the present teachings can possess certain processing advantages such as solution-processability and/or good stability in ambient conditions.
摘要:
Solution-processable dielectric materials are provided, along with precursor compositions and processes for preparing the same. Composites and electronic devices including the dielectric materials also are provided.
摘要:
An organic photovoltaic device and method of forming same. In one embodiment, the organic photovoltaic device has an anode, a cathode, an active layer disposed between the anode and the cathode; and an interfacial layer disposed between the anode and the active layer, the interfacial layer comprising 5,5′-bis [(p-trichlorosilylpropylphenyl) phenylamino]-2,2′-bithiophene (PABTSi2).
摘要:
Electro-optic (EO) modulator and related device structures which can be used in conjunction with high EO materials to lower switching voltage and improve related performance parameters.
摘要:
The present teachings provide silole-based polymers that can be used as p-type semiconductors. More specifically, the present teachings provide polymers that include a repeating unit of Formula I: wherein R1, R2, R3, R4, R5R6, Z, x, and x′ are as defined herein. The present teachings also provide methods of preparing these polymers, and relate to various compositions, composites, and devices that incorporate these polymers.
摘要:
The preparation of robust, thin film materials with large second-order optical nonlinearities through the covalent self-assembly of chromophoric compositions and innovative use of silyl chemistry.
摘要:
Disclosed are fully transparent nanowire transistors having high field-effect mobilities. The fully transparent nanowire transistors disclosed herein include one or more nanowires, a gate dielectric prepared from a transparent inorganic or organic material, and transparent source, drain, and gate contacts fabricated on a transparent substrate. The fully transparent nanowire transistors disclosed herein also can be mechanically flexible.
摘要:
The present teachings provide compounds of formulae I and II: where Q, Ra, R1, W, and n are as defined herein. The present teachings also provide methods of preparing compounds of formulae I and II, including methods of preparing compounds of formula II from compounds of formula I. The compounds disclosed herein can be used to prepare semiconductor materials and related composites and electronic devices.