N-type organic thin film transistors with high operational stability

Jeongkyun Roh, Chan Mo Kang, Hyeonwoo Shin, Jeonghun Kwak, Byung Jun Jung, Changhee Lee

Research output: Contribution to journalArticlepeer-review

Abstract

n-type organic thin film transistors (OTFTs) with high operational stability was demonstrated. The operational stability of N,N'- ditridecylperylene-3,4,9,10-tetracarboxylic diimide (PTCDI-C13)-based OTFTs was improved by engineering organic semiconductor-gate insulator interface with hydrophobic polymers. Under high gate bias stress (equivalent to the electric field of 3MV/cm) for two hours, OTFTs with hydrophobic polymers showed small threshold voltage shift around 2 V. Moreover, the electron mobility was improved from 0.038 to 0.14-0.15 cm2/Vs with hydrophobic polymers.

Original languageEnglish
Pages (from-to)1021-1023
Number of pages3
JournalDigest of Technical Papers - SID International Symposium
Volume45
Issue number1
DOIs
StatePublished - Jun 2014

Keywords

  • n-type OTFT
  • operational stability
  • organic thin film transistors

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