Electrode Engineering in Halide Perovskite Electronics : Plenty of Room at the Interfaces

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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  • Chun-Ho Lin
  • Long Hu
  • Xinwei Guan
  • Jiyun Kim
  • Chien-Yu Huang
  • Simrjit Singh
  • Tom Wu


Original languageEnglish
Article number2108616
Journal / PublicationAdvanced Materials
Issue number18
Online published7 Jan 2022
Publication statusPublished - 5 May 2022
Externally publishedYes



Contact engineering is a prerequisite for achieving desirable functionality and performance of semiconductor electronics, which is particularly critical for organic–inorganic hybrid halide perovskites due to their ionic nature and highly reactive interfaces. Although the interfaces between perovskites and charge-transporting layers have attracted lots of attention due to the photovoltaic and light-emitting diode applications, achieving reliable perovskite/electrode contacts for electronic devices, such as transistors and memories, remains as a bottleneck. Herein, a critical review on the elusive nature of perovskite/electrode interfaces with a focus on the interfacial electrochemistry effects is presented. The basic guidelines of electrode selection are given for establishing non-polarized interfaces and optimal energy level alignment for perovskite materials. Furthermore, state-of-the-art strategies on interface-related electrode engineering are reviewed and discussed, which aim at achieving ohmic transport and eliminating hysteresis in perovskite devices. The role and multiple functionalities of self-assembled monolayers that offer a unique approach toward improving perovskite/electrode contacts are also discussed. The insights on electrode engineering pave the way to advancing stable and reliable perovskite devices in diverse electronic applications. © 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Research Area(s)

  • contact engineering, electrodes, hysteresis, interfacial reaction, perovskites

Citation Format(s)

Electrode Engineering in Halide Perovskite Electronics: Plenty of Room at the Interfaces. / Lin, Chun-Ho; Hu, Long; Guan, Xinwei et al.
In: Advanced Materials, Vol. 34, No. 18, 2108616, 05.05.2022.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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