Discrepancies in performance for heterojunction organic field-effect transistors with different channel lengths

Xinge Yu*, Junsheng Yu, Wei Huang, Shijiao Han

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Organic field-effect transistors (OFETs) with pentacene/1,1′-bis(di- 4-tolylaminophenyl) cyclohexane heterojunction structures were fabricated, and semiconductor field-effect transistor characteristics were examined for heterojunction OFETs with different channel lengths to investigate discrepancies in threshold voltage. Compared with the OFETs with short channel length, the OFETs with long channel length demonstrated a much lower threshold voltage. The decrease in threshold voltage was attributed to the reduction of charge carrier traps, and trap variation for transistors with different channel lengths was studied in detail.

Original languageEnglish (US)
Article number062401
JournalJournal of Vacuum Science and Technology B:Nanotechnology and Microelectronics
Volume30
Issue number6
DOIs
StatePublished - Nov 2012

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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