Synthesis and evaluation of self-assembled azido monolayer as a novel dielectric layer for fabricating pentacene-based organic thin film transistors

Je Yuan Yeh, Tzung Da Tsai, An Tsung Kuo, Ying Shiun Chou, Ying Shian Liou, Zhao You Chang, Raymond Chien Chao Tsiang, Tzung Fang Guo, Chien Hsiang Chang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Self-assembled 3-azidopropyltriethoxysilane monolayer (SAM) is used as a dielectric layer to modify the interface between the silicon dioxide wafer and the pentacene semiconductor layer in an organic thin film transistor (OTFT), Au/pentacene/3-azidopropyltriethoxysilane/ SiO2/Si. Compared to the commonly used alkyl siliane C18 dielectric, 3-azidopropyltriethoxysilane which possesses stable formal charges is far more effective in increasing the ON/OFF ratio of OTFT device with an improvement of nearly three orders of magnitude. Analysis and measurements reported in this paper have illustrated for the first time the improvement of OTFT performance by a SAM compound with stable formal charges.

Original languageEnglish
Pages (from-to)3681-3687
Number of pages7
JournalJournal of Nanoscience and Nanotechnology
Volume15
Issue number5
DOIs
Publication statusPublished - 2015 May 1

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Synthesis and evaluation of self-assembled azido monolayer as a novel dielectric layer for fabricating pentacene-based organic thin film transistors'. Together they form a unique fingerprint.

Cite this