Performance enhancement of organic thin-film transistors with improved copper phthalocyanine crystallization by inserting ultrathin pentacene buffer

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

11 Scopus Citations
View graph of relations

Author(s)

  • Wei Huang
  • Junsheng Yu
  • Xinge Yu
  • Yu Li
  • Hongjuan Zeng

Detail(s)

Original languageEnglish
Pages (from-to)6677-6680
Journal / PublicationThin Solid Films
Volume520
Issue number21
Online published6 Jul 2012
Publication statusPublished - 31 Aug 2012
Externally publishedYes

Abstract

Organic thin-film transistors (OTFTs) with high crystallization copper phthalocyanine (CuPc) active layers were fabricated by inserting an ultrathin pentacene buffer layer between the dielectric and CuPc layers. Comparing with the OTFTs without a pentacene buffer layer, the charge carrier mobility of the OTFT with a buffer layer presented a much higher value of ∼ 0.20 cm2/V s. Meanwhile, by investigating the morphology of the CuPc active layer with an ultrathin pentacene buffer layer through scanning electron microscopy and X-ray diffraction, the high crystallization of the CuPc film with a larger grain size and less grain boundaries can be observed. As a result, the resistance of the conducting channel was decreased, leading to a performance improvement of the OTFTs.

Research Area(s)

  • Buffer layer, Copper phthalocyanine, Crystallization, Organic thin-film transistors, Pentacene

Citation Format(s)

Performance enhancement of organic thin-film transistors with improved copper phthalocyanine crystallization by inserting ultrathin pentacene buffer. / Huang, Wei; Yu, Junsheng; Yu, Xinge; Li, Yu; Zeng, Hongjuan.

In: Thin Solid Films, Vol. 520, No. 21, 31.08.2012, p. 6677-6680.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal