Organometal halide perovskite as hole injection enhancer in organic light-emitting diode

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

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Author(s)

  • Yaomiao Feng
  • Jiaju Xu
  • Haiquan Shan
  • Lei Dong
  • Xize Sun
  • Qikun Hu
  • Yulong Wang
  • Zong-Xiang Xu

Detail(s)

Original languageEnglish
Pages (from-to)257-263
Journal / PublicationOrganic Electronics: physics, materials, applications
Volume51
Online published18 Sep 2017
Publication statusPublished - Dec 2017

Abstract

We introduce an organometal halide perovskite (CH3NH3PbI3), as a hole injection layer (HIL) to accelerate hole injection and transport in tris-(8-hydroxyquinoline) aluminum-based organic light-emitting diodes (OLEDs). The excellent charge mobility of CH3NH3PbI3 along with the better interface contacts induced by the CH3NH3PbI3 HIL improved the charge balance and thus enhanced device performance compared with that of OLEDs without a HIL and with a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) HIL. Maximum luminance of 19110 cd m−2 and power efficiency of 3.210 lm W−1 were obtained. Also, besides more balanced charge recombination, the non-aqueous fabrication of the perovskite HIL and the chemical stability of indium tin oxide in contact with CH3NH3PbI3 led to increased device stability and durability, giving a half-life time as long as 31.7 h.

Research Area(s)

  • Hole injection layer, Organic light-emitting diode, Organometal halide perovskites

Citation Format(s)

Organometal halide perovskite as hole injection enhancer in organic light-emitting diode. / Feng, Yaomiao; Xu, Jiaju; Shan, Haiquan; Dong, Lei; Sun, Xize; Hu, Qikun; Wang, Yulong; Roy, V. A.L.; Xu, Zong-Xiang.

In: Organic Electronics: physics, materials, applications, Vol. 51, 12.2017, p. 257-263.

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