Improvement of transparent organic thin film transistor performance by inserting a lithium fluoride buffer layer

Yu Ju Lin, Yu Chang Li, Ten Chin Wen, Li Ming Huang, Ying Kuo Chen, Hong Jian Yeh, Yeong Her Wang

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Pentacene-based highly transparent thin-film transistors which are fabricated by inserting a thin insulating lithium fluoride layer between pentacene and transparent source/drain electrodes are presented. Through this method, device performance can be enhanced dramatically with an average transmittance of as high as 69.72% in the visible region, indicating that the LiF layer is not responsible for optical transmission. For example, there is a significant improvement of a few times with the introduction of the 1-nm -thick LiF layer, the maximum saturation drain current and the field-effect mobility. These improvements are attributed to the energy band realignment and the tunneling process.

Original languageEnglish
Article number043305
JournalApplied Physics Letters
Volume93
Issue number4
DOIs
Publication statusPublished - 2008 Aug 15

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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