Post-Annealing Treatment on Hydrothermally Grown Antimony Sulfoselenide Thin Films for Efficient Solar Cells

Suman Rijal, Alisha Adhikari, Rasha Awni, Chuanxiao Xiao, Deng-Bing Li, Briana Dokken, Anna Ellingson, Ernesto Flores, Sandip Bista, Dipendra Pokhrel, Sabin Neupane, Richard Irving, Adam Phillips, Katherine Jungjohann, Chun-Sheng Jiang, Mowafak Al-Jassim, Randy Ellingson, Zhaoning Song, Yanfa Yan

Research output: Contribution to journalArticlepeer-review

8 Scopus Citations

Abstract

Herein, antimony sulfoselenide (Sb2(S, Se)3) thin-film solar cells are fabricated by a hydrothermal method followed by a post-deposition annealing process at different temperatures and the impact of the annealing temperature on the morphological, structural, optoelectronic, and defect properties of the hydrothermally grown Sb2(S, Se)3 films is investigated. It is found that a proper annealing temperature leads to high-quality Sb2(S, Se)3 films with large crystal grains, high crystallinity, preferred crystal orientation, smooth and uniform morphology, and reduced defect density. These results show that suppressing deep-level defects is crucial to enhance solar cell performance. After optimizing the annealing process, Sb2(S, Se)3 solar cells with an improved power conversion efficiency 2.04 to 8.48% are obtained.

Original languageAmerican English
Article number2201009
Number of pages7
JournalSolar RRL
Volume7
Issue number4
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2022 The Authors. Solar RRL published by Wiley-VCH GmbH.

NREL Publication Number

  • NREL/JA-5K00-85531

Keywords

  • annealing
  • antimony sulfoselenide
  • defects
  • hydrothermal growth
  • thin-film solar cells

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