Title

Lower activation energy in organic field effect transistors with carbon nanotube contacts

Authors

Authors

B. K. Sarker;S. I. Khondaker

Comments

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Abbreviated Journal Title

Solid-State Electron.

Keywords

Carbon nanotube electrode; Activation energy; Charge transport; Organic; field effect transistors; Interface; THIN-FILM TRANSISTORS; ELECTRONIC TRANSPORT; LEVEL ALIGNMENT; MORPHOLOGY; FABRICATION; INTERFACES; Engineering, Electrical & Electronic; Physics, Applied; Physics, ; Condensed Matter

Abstract

We study temperature dependent charge transport properties of pentacene field effect transistors (FET) with carbon nanotube (CNT) electrodes. The field effect mobilities at different temperatures and gate voltages follow activated hopping behavior from which we calculate an activation energy of 48 meV for the CNT contacted pentacene FET. This value is lower than that of our control Pd contacted pentacene FET device (83 meV). The lower activation energy of the CNT contacted devices is attributed to improved CNT/pentacene interface. (C) 2014 Elsevier Ltd. All rights reserved.

Journal Title

Solid-State Electronics

Volume

99

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

55

Last Page

58

WOS Identifier

WOS:000340220500012

ISSN

0038-1101

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