Remarkable mobility increase and threshold voltage reduction in organic field-effect transistors by overlaying discontinuous nano-patches of charge-transfer doping layer on top of semiconducting film

Jong H. Kim, Sun Woo Yun, Byeong Kwan An, Yoon Deok Han, Seong Jun Yoon, Jinsoo Joo, Soo Young Park

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

An effective strategy for significantly increasing the organic transistor mobility with simultaneous reduction of the threshold voltage utilizing discontinuous nano-patches of charge-transfer doping layer is demonstrated. By overlaying the nano-patches on top of a given semiconducting film, mobility and threshold voltage of p-type pentacene are remarkably improved to 4.52 cm 2 V-1s-1 and -0.4 V, and those of n-type Hex-4-TFPTA are also improved to 2.57 cm2 V-1s -1 and 4.1 V.

Original languageEnglish
Pages (from-to)719-724
Number of pages6
JournalAdvanced Materials
Volume25
Issue number5
DOIs
Publication statusPublished - 2013 Feb 6

Keywords

  • activation energy
  • charge-transfer doping
  • organic field-effect transistors

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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