Effects of the permanent dipoles of self-assembled monolayer-treated insulator surfaces on the field-effect mobility of a pentacene thin-film transistor
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TLDR
In this article, the authors investigated the effects of permanent dipoles on insulator surfaces on the electrical properties of organic thin-film transistors, and they found that the field effect mobility of pentacene thin-filtered transistors increases by a factor of approximately 20 for insulators with an electron-withdrawing group.Abstract:
In order to investigate the effects of permanent dipoles on insulator surfaces on the electrical properties of organic thin-film transistors, the authors fabricated insulators with various self-assembled monolayers and similar surface energies. Surprisingly, they found that the field-effect mobility of pentacene thin-film transistors increases by a factor of approximately 20 for insulators with an electron-withdrawing group. This remarkable increase in the field-effect mobility is due to the increase in the hole density of the insulator surface that arises from the increased band bending of the insulator/semiconductor interface.read more
Citations
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Enhancement of Field-Effect Mobility by Surface-Mediated Molecular Ordering in Regioregular Polythiophene Thin Film Transistor
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Work-Function Engineering of Graphene Electrodes by Self-Assembled Monolayers for High-Performance Organic Field-Effect Transistors.
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References
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High-mobility polymer gate dielectric pentacene thin film transistors
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TL;DR: An approach to improve metal/organic contacts in organic electronic devices by utilizing chemically tailored electrodes is demonstrated and a physical principle for manipulating the relative energy levels between two materials is established.
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Threshold voltage shift in organic field effect transistors by dipole monolayers on the gate insulator
K. P. Pernstich,Simon Haas,D. Oberhoff,C. Goldmann,David J. Gundlach,Bertram Batlogg,A. N. Rashid,Georg Schitter +7 more
TL;DR: In this paper, the authors demonstrate controllable shift of the threshold voltage and the turn-on voltage in pentacene thin film transistors and rubrene single crystal field effect transistors by the use of nine organosilanes with different functional groups.