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

Yow Jon Lin, Bo Chieh Huang

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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
Issue number1
Publication statusPublished - 2013 Oct 15


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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