Hole mobility enhancement of pentacene organic field-effect transistors using 4,4′,4″-tris[3-methylphenyl(phenyl)amino] triphenylamine as a hole injection interlayer

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

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Author(s)

  • Xinge Yu
  • Junsheng Yu
  • Jianlin Zhou
  • Jiang Huang
  • Yadong Jiang

Detail(s)

Original languageEnglish
Article number063306
Journal / PublicationApplied Physics Letters
Volume99
Issue number6
Publication statusPublished - 8 Aug 2011
Externally publishedYes

Abstract

Organic field-effect transistors (OFETs) were prepared and analyzed by inserting various thickness of 4,4′,4″-tris[3-methylphenyl(phenyl) amino] triphenylamine (m-MTDATA) between pentacene and gold electrodes as a hole injection layer. These OFETs showed a significant enhancement of hole mobility comparing to the corresponding single layer device. The interfacial morphologies of pentacene and pentacene/m-MTDATA contact were characterized by atomic force microscopy. The hole mobility improvement of OFETs was attributed to an intermediate energy level formed between pentacene and gold heterojunction when inserting an ultrathin m-MTDATA layer, leading to a remarkable reduction of contact resistance at the metal-organic interface.

Citation Format(s)

Hole mobility enhancement of pentacene organic field-effect transistors using 4,4′,4″-tris[3-methylphenyl(phenyl)amino] triphenylamine as a hole injection interlayer. / Yu, Xinge; Yu, Junsheng; Zhou, Jianlin; Huang, Jiang; Jiang, Yadong.

In: Applied Physics Letters, Vol. 99, No. 6, 063306, 08.08.2011.

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