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We have investigated the influence of carrier injection on the characteristics of an organic field effect transistor (OFET) using a rubrene single crystal. The mobility estimated from the transfer cha...

Dynamics of photoinduced charge transfer between pentacene and a C60-terminated self-assembled monolayer

Appl. Phys. Lett. 94, 073302 (2009); doi:10.1063/1.3080667

Published 17 February 2009

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Byoungnam Park, Peerasak Paoprasert, Padma Gopalan, T. F. Kuech, and Paul G. Evans
University of Wisconsin, Madison, Wisconsin 53706, USA
A C60-terminated self-assembled monolayer can be used to place molecular acceptor states at the interface between the semiconductor and gate insulator of an organic field effect transistor. The time dependence of the photoinduced charge transfer between pentacene and C60 has a fast component with a characteristic time of 1.9 s and slower component with a time constant of 32 and 48 s at the beginning and end of a transient increase in illumination, respectively. Variation in the threshold voltage shift with the thickness of the pentacene results from the competing length scales for light absorption and exciton diffusion. ©2009 American Institute of Physics
History: Received 5 January 2009; accepted 17 January 2009; published 17 February 2009
Permalink: http://link.aip.org/link/?APPLAB/94/073302/1
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KEYWORDS and PACS

Keywords
PACS
  • 85.30.Tv
    Semiconductor field effect devices
  • 81.16.Dn
    Self-assembly in nanofabrication and processing
  • 73.20.-r
    Electron states at surfaces and interfaces
  • 73.40.Qv
    Electrical properties of metal-insulator-semiconductor structures
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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AIP is a member of CrossRef AIP

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