Electrical conduction mechanisms in the transfer characteristics of pentacene thin film transistors

Yow Jon Lin, Yu Cheng Lin

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In order to understand the electrical conduction mechanisms in the transfer characteristics of pentacene-based organic thin film transistors (OTFTs), an analysis using the temperature-dependent transfer characteristics is presented. The temperature-dependent transfer characteristics exhibit hopping conduction behavior. Compared to the fitting data for the temperature-dependent linear-regime (saturation-regime) transfer characteristics of OTFTs, the fitting data for the temperature-dependent sub-threshold-regime transfer characteristics of OTFTs show that a longer hopping distance and a higher barrier height for hopping result in a higher channel resistance. However, similar hopping conduction behavior is seen in the saturation and linear regions, which demonstrates that the carrier mobility is drain-source voltage-dependent.

Original languageEnglish
Article number023506
JournalApplied Physics Letters
Volume105
Issue number2
DOIs
Publication statusPublished - 2014 Jan 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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