What Matters for the Charge Transport of 2D Perovskites? Article No. 2404517

Yixin Zhang, Mojtaba Abdi-Jalebi, Bryon Larson, Fei Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

Compared to 3D perovskites, 2D perovskites exhibit excellent stability, structural diversity, and tunable bandgaps, making them highly promising for applications in solar cells, light-emitting diodes, and photodetectors. However, the trade-off for worse charge transport is a critical issue that needs to be addressed. This comprehensive review first discusses the structure of 3D and 2D metal halide perovskites, then summarizes the significant factors influencing charge transport in detail and provides a brief overview of the testing methods. Subsequently, various strategies to improve the charge transport are presented, including tuning A'-site organic spacer cations, A-site cations, B-site metal cations, and X-site halide ions. Finally, an outlook on the future development of improving the 2D perovskites' charge transport is discussed.
Original languageAmerican English
JournalAdvanced Materials
DOIs
StatePublished - 2024

NREL Publication Number

  • NREL/JA-5900-89451

Keywords

  • 2D perovskites
  • charge transport
  • interlayer cations
  • structure

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