Influence of illumination on the output characteristics in pentacene thin film transistors

Yow-Jon Lin, Bo Chieh Huang

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The influence of illumination on the output characteristics of pentacene-based organic thin film transistors (OTFTs) was researched in this study. It is shown that light illumination may lead to an increase in the drain current, shifting the threshold voltage towards positive gate-source voltages. This is because of the light-induced acceptor activation, which is a new concept for illumination-dependent output characteristics of OTFTs. However, the field-effect mobility is insensitive to light illumination. It is found that electron trapping is responsible for the experimentally observed illumination-dependent output behavior of charge transport in OTFTs.

Original languageEnglish
Pages (from-to)428-431
Number of pages4
JournalMaterials Chemistry and Physics
Volume142
Issue number1
DOIs
Publication statusPublished - 2013 Oct 15

Fingerprint

Thin film transistors
transistors
Lighting
illumination
output
thin films
Drain current
Threshold voltage
threshold voltage
Charge transfer
Chemical activation
trapping
pentacene
activation
Electrons
Electric potential
electric potential
electrons

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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Influence of illumination on the output characteristics in pentacene thin film transistors. / Lin, Yow-Jon; Huang, Bo Chieh.

In: Materials Chemistry and Physics, Vol. 142, No. 1, 15.10.2013, p. 428-431.

Research output: Contribution to journalArticle

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AB - The influence of illumination on the output characteristics of pentacene-based organic thin film transistors (OTFTs) was researched in this study. It is shown that light illumination may lead to an increase in the drain current, shifting the threshold voltage towards positive gate-source voltages. This is because of the light-induced acceptor activation, which is a new concept for illumination-dependent output characteristics of OTFTs. However, the field-effect mobility is insensitive to light illumination. It is found that electron trapping is responsible for the experimentally observed illumination-dependent output behavior of charge transport in OTFTs.

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