Nature Communications (Aug 2022)

Strong absorption and ultrafast localisation in NaBiS2 nanocrystals with slow charge-carrier recombination

  • Yi-Teng Huang,
  • Seán R. Kavanagh,
  • Marcello Righetto,
  • Marin Rusu,
  • Igal Levine,
  • Thomas Unold,
  • Szymon J. Zelewski,
  • Alexander J. Sneyd,
  • Kaiwen Zhang,
  • Linjie Dai,
  • Andrew J. Britton,
  • Junzhi Ye,
  • Jaakko Julin,
  • Mari Napari,
  • Zhilong Zhang,
  • James Xiao,
  • Mikko Laitinen,
  • Laura Torrente-Murciano,
  • Samuel D. Stranks,
  • Akshay Rao,
  • Laura M. Herz,
  • David O. Scanlon,
  • Aron Walsh,
  • Robert L. Z. Hoye

DOI
https://doi.org/10.1038/s41467-022-32669-3
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 13

Abstract

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Ternary chalcogenides are gaining interest as nontoxic, stable solar absorbers. Here, the authors investigate NaBiS2, finding cation disorder to be a critical parameter that enables its high absorption strength and unusual charge-carrier kinetics.