Topic
Pentacene
About: Pentacene is a research topic. Over the lifetime, 5051 publications have been published within this topic receiving 161481 citations. The topic is also known as: 2,3:6,7-dibenzanthracene & benzo[b]naphthacene.
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TL;DR: In this paper, the authors investigated the effect of a static electric field on the internal reorganization energies and interchain transfer integrals of organic semiconducting materials with conjugated oligomers.
Abstract: Internal reorganization energies and interchain transfer integrals are two key parameters governing the charge-transport properties of organic semiconducting materials. Here, in order to model some aspects of device operation in field-effect transistors based on conjugated oligomers, we investigate via semiempirical quantum-chemical calculations the way these two parameters are modified when a static electric field in the range 106–108 V/cm is applied along the long axis of pentacene and sexithienyl molecules. For the highest fields, a pronounced redistribution of the charges along the oligomer chains occurs, which is accompanied by significant geometric distortions. However, these charge redistribution effects are found not to impact significantly the transport parameters.
48 citations
TL;DR: The electrical conductivity of hexacene hexasulphide is similar to that of the well-known naphthacene tetrasulphides as mentioned in this paper and 109 times greater than that of pentacene.
Abstract: Pentacene and hexacene both react with sulphur to form stable hexasulphides for which double fused thiathiophthen structures (6) and (8) or (9) are proposed. The electrical conductivity of hexacene hexasulphide is similar to that of the well-known naphthacene tetrasulphide (1) and 109 times greater than that of pentacene hexasulphide. Replacement of the sulphur in (1) by selenium gives a tetraselenide (14) of similar conductivity to (1). The new naphthaceno[5,6-cd][1,2]dithiole (10) is described.
48 citations
TL;DR: In this paper, an innovative nanoimprint process for the fabrication of entirely patterned submicron OTFTs in a bottom-gate configuration is described. But the method is based on UV-Nanoimprint Lithography (UV-NIL) combined with a novel imprint resist whose outstanding chemical and physical properties are responsible for the excellent results in structure transfer.
48 citations
TL;DR: In this paper, the photon-echo lifetime of pentacene-h 14 and -d 14 in p -terphenyl- h 14 at 1.5 K was determined using two nitrogen pumped dye-lasers.
48 citations
TL;DR: In this article, transient photovoltage and charge extraction analyses are used to quantify the rate of nongeminate recombination loss within a pentacene/C60 bilayer solar cell across the power-generating quadrant of the device.
Abstract: Transient photovoltage and charge extraction analyses are used to quantify the rate of nongeminate recombination loss within a pentacene/C60 bilayer solar cell across the power-generating quadrant of the device. Employing these data, a simple model of cell function, based on field-independent generation and a charge-dependent nongeminate loss current without the use of any adjustable fitting parameters, is shown to be in good agreement with the experimental current/voltage behavior of the device both in the dark and under illumination.
48 citations