Influence of inserting a thin fullerene layer on pentacene organic thin-film transistor

Yu Chang Li, Yu Ju Lin, Chia Yu Wei, Dei Wei Chou, Chun Ho Tsao, Yeong-Her Wang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The performance of organic thin-film transistors (TFTs) with a pentacene/fullerene(C 60)/pentacene (PCP) sandwich structure is presented. Using a 3.5 nm-thick C 60 layer inserted between the pentacene films, the obtained hole mobility is improved by more than six times. By applying atomic force microscopy, x-ray diffraction, Raman spectrum, and transmission line method analysis, one can reasonably infer that the smoother surface of the pentacene film covered with thin C 60 layer delays the phase transformation of the upper pentacene film, resulting in stronger intermolecular coupling and the reduction of channel resistance of the PCP TFTs from 3.03 to 1.72 M, and, therefore, improving the device performance.

Original languageEnglish
Article number113306
JournalApplied Physics Letters
Volume100
Issue number11
DOIs
Publication statusPublished - 2012 Mar 12

Fingerprint

fullerenes
transistors
thin films
sandwich structures
hole mobility
transmission lines
phase transformations
x ray diffraction
atomic force microscopy
Raman spectra

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Li, Yu Chang ; Lin, Yu Ju ; Wei, Chia Yu ; Chou, Dei Wei ; Tsao, Chun Ho ; Wang, Yeong-Her. / Influence of inserting a thin fullerene layer on pentacene organic thin-film transistor. In: Applied Physics Letters. 2012 ; Vol. 100, No. 11.
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Influence of inserting a thin fullerene layer on pentacene organic thin-film transistor. / Li, Yu Chang; Lin, Yu Ju; Wei, Chia Yu; Chou, Dei Wei; Tsao, Chun Ho; Wang, Yeong-Her.

In: Applied Physics Letters, Vol. 100, No. 11, 113306, 12.03.2012.

Research output: Contribution to journalArticle

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