Self-Assembled Monolayers of Cyclohexyl-Terminated Phosphonic Acids as a General Dielectric Surface for High-Performance Organic Thin-Film Transistors

Danqing Liu, Zikai He, Yaorong Su, Ying Diao, Stefan C.B. Mannsfeld, Zhenan Bao, Jianbin Xu, Qian Miao

Research output: Contribution to journalArticlepeer-review

Abstract

A novel self-assembled monolayer (SAM) on AlOy/TiOx is terminated with cyclohexyl groups, an unprecedented terminal group for all kinds of SAMs. The SAM-modified AlOy/TiOx functions as a general dielectric, enabling organic thin-film transistors with a field-effect mobility higher than 5 cm2 V-1 s-1 for both holes and electrons, good air stability with low operating voltage, and general applicability to solution-processed and vacuum-deposited n-type and p-type organic semiconductors.

Original languageEnglish (US)
Pages (from-to)7190-7196
Number of pages7
JournalAdvanced Materials
Volume26
Issue number42
DOIs
StatePublished - Nov 1 2014
Externally publishedYes

Keywords

  • interface engineering
  • organic thin-film transistors
  • self-assembled monolayers (SAMs)

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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