Surface Lattice Engineering through Three-Dimensional Lead Iodide Perovskitoid for High-Performance Perovskite Solar Cells

Fei Zhang, Haipeng Lu, Bryon Larson, Chuanxiao Xiao, Sean Dunfield, Obadiah Reid, Xihan Chen, Mengjin Yang, Joseph Berry, Matthew Beard, Kai Zhu

Research output: Contribution to journalArticlepeer-review

37 Scopus Citations

Abstract

A simple surface treatment with N-methyl-1,3-propane diammonium diiodide (Me-PDAI2) on top of 3D perovskite inducing the formation of a thin 3D (Me-PDA)Pb2I6 perovskitoid layer is reported, leading to smoother surface texture, longer charge-carrier lifetime, higher charge-carrier mobility, and reduced surface-defect density. With the perovskitoid surface modification, the device efficiency is improved from 20.3% to 22.0% along with enhanced stability. In addition, the perovskitoid surface engineering approach is applicable to different perovskite compositions.

Original languageAmerican English
Pages (from-to)774-785
Number of pages12
JournalChem
Volume7
Issue number3
DOIs
StatePublished - 11 Mar 2021

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Inc.

NREL Publication Number

  • NREL/JA-5900-77365

Keywords

  • low-dimension structure
  • perovskite
  • perovskitoid
  • SDG7: Affordable and clean energy
  • solar cell
  • stability
  • surface chemistry

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