Recent advances in interfacial engineering of perovskite solar cells

Meidan Ye, Chunfeng He, James Iocozzia, Xueqin Liu, Xun Cui, Xiangtong Meng, Matthew Rager, Xiaodan Hong, Xiangyang Liu, Zhiqun Lin

Research output: Contribution to journalReview articlepeer-review

132 Scopus citations

Abstract

Due to recent developments, organometallic halide perovskite solar cells (PSCs) have attracted even greater interest owing to their impressive photovoltaic properties and simple device manufacturing processes with the potential for commercial applications. The power conversion efficiencies (PCEs) of PSCs have surged from 3.8% for methyl ammonium lead halide-sensitized liquid solar cells, CH3NH3PbX3 (X = Cl, Br, I), in 2009, to more than 22% for all-solid-state solar cells in 2016. Over the past few years, significant effort has been dedicated to realizing PSCs with even higher performance. In this review, recent advances in the interfacial engineering of PSCs are addressed. The specific strategies for the interfacial engineering of PSCs fall into two categories: (1) solvent treatment and additives to improve the light-harvesting capabilities of perovskite films, and (2) the incorporation of various functional materials at the interfaces between the active layers (e.g. electron transporting layer, perovskite layer, and hole transporting layer). This review aims to provide a comprehensive overview of strategies for the interfacial engineering of PSCs with potential benefits including enhanced light harvesting, improved charge separation and transport, improved device stability, and elimination of photocurrent hysteresis.

Original languageEnglish
Article number373002
JournalJournal of Physics D: Applied Physics
Volume50
Issue number37
DOIs
StatePublished - 22 Aug 2017

Bibliographical note

Publisher Copyright:
© 2017 IOP Publishing Ltd.

Keywords

  • charge separation
  • device stability
  • interfacial engineering
  • light harvesting
  • perovskite solar cells

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