Unassisted overall water splitting with a solar-to-hydrogen efficiency of over 10% by coupled lead halide perovskite photoelectrodes

Ryan Rhee, Tae G. Kim, Gyu Y. Jang, Gwangmin Bae, Jung H. Lee, Sunje Lee, Sungsoon Kim, Seokwoo Jeon, Jong H. Park

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Hydrogen is a promising future sustainable fuel candidate with boundless opportunities. Research into photoelectrochemical (PEC) water splitting based on a lead halide perovskite (LHP) has progressed significantly with the aim of more efficient solar hydrogen production. Herein, we unite a well-known photo-absorbing LHP with cost-effective water-splitting catalysts, and we introduce two types of monolithic LHP-based PEC devices that act as a photocathode and a photoanode for the hydrogen evolution reaction and oxygen evolution reaction, leading to efficient unbiased overall water splitting. Through the integration of these two monolithic LHP-based photoelectrodes, an unbiased solar-to-hydrogen conversion efficiency of 10.64% and a photocurrent density of 8.65 mA cm−2 are achieved.

Original languageEnglish
Article numbere232
JournalCarbon Energy
Volume5
Issue number1
DOIs
Publication statusPublished - 2023 Jan

Bibliographical note

Publisher Copyright:
© 2022 The Authors. Carbon Energy published by Wenzhou University and John Wiley & Sons Australia, Ltd.

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science (miscellaneous)
  • Energy (miscellaneous)
  • Materials Chemistry

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