Recent progress in surface modification and interfacial engineering for high-performance perovskite light-emitting diodes

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

2 Scopus Citations
View graph of relations

Author(s)

  • Xiaoyu Huang
  • Xu Han
  • Li Ji
  • Xingli Zou
  • Guizheng Zou

Detail(s)

Original languageEnglish
Article number104752
Journal / PublicationNano Energy
Volume73
Online published6 Apr 2020
Publication statusPublished - Jul 2020

Abstract

Perovskite-based light-emitting diodes (PeLEDs) are an emerging lighting and display due to their extraordinarily photoelectric characteristics. In the past few years, external quantum efficiency (EQE) has enhanced from less than 0.1% to over 20%, which is comparable to that of conventional organic light-emitting diodes. As a result of low production cost and high energy efficiency of perovskite materials, PeLEDs have attracted enormous attention. However, in the cost-efficient solution-based process, the perovskite film with the occurrence of electron and hole traps as well as the rough surface are unfavorable for the PeLEDs. Surface modification and interfacial engineering play a significant role in the performance of light-emitting devices. Various strategies for the improvement of surface morphology have been executed to solve intrinsic challenges related to PeLEDs. In this review, recent advances in the morphology engineering of PeLEDs are summarized. Compositional engineering, additive engineering, annealing treatment, humidity management, solvent control, gas-quenching and vapor-assisted method, as well as interlayer engineering and self-assembly monolayer, are specifically discussed; additionally, an outlook is addressed that will provide inspiration for further enhancing the performances of PeLEDs.

Research Area(s)

  • High performance, Interfacial engineering, Light-emitting diodes, Perovskite materials, Surface modification

Citation Format(s)

Recent progress in surface modification and interfacial engineering for high-performance perovskite light-emitting diodes. / Mak, Chun Hong; Huang, Xiaoyu; Liu, Rugeng; Tang, Yunqi; Han, Xu; Ji, Li; Zou, Xingli; Zou, Guizheng; Hsu, Hsien-Yi.

In: Nano Energy, Vol. 73, 104752, 07.2020.

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