Nature Communications (Oct 2022)

Low-bias photoelectrochemical water splitting via mediating trap states and small polaron hopping

  • Hao Wu,
  • Lei Zhang,
  • Aijun Du,
  • Rowshanak Irani,
  • Roel van de Krol,
  • Fatwa F. Abdi,
  • Yun Hau Ng

DOI
https://doi.org/10.1038/s41467-022-33905-6
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 12

Abstract

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While photoelectrochemical water splitting produces fuel from solar energy, a large fraction of photoanode photoexcited charge carriers cannot be extracted efficiently at low bias voltages. Here, authors improve the charge transport in P-doped BiVO4 by mediating polaron hopping and trap states.