Post‐Annealing Treatment on Hydrothermally Grown Antimony Sulfoselenide Thin Films for Efficient Solar Cells. Issue 4 (22nd December 2022)

• Record Type: Journal Article
• Authors: Rijal, Suman; Adhikari, Alisha; Awni, Rasha A.; Xiao, Chuanxiao; Li, Deng-Bing; Dokken, Briana; Ellingson, Anna; Flores, Ernesto; Bista, Sandip S.; Pokhrel, Dipendra; Neupane, Sabin; Irving, Richard E.; Phillips, Adam B.; Jungjohann, Katherine; Jiang, Chun-Sheng; Al-Jassim, Mowafak; Ellingson, Randy J.; Song, Zhaoning; Yan, Yanfa
• Is Part Of: Solar RRL. Volume 7:Issue 4(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-12-22
• Subjects: annealing -- antimony sulfoselenide -- defects -- hydrothermal growth -- thin-film solar cells; Solar energy -- Periodicals; Photovoltaic power generation -- Periodicals; Solar energy -- Research -- Periodicals; Photovoltaic power generation -- Research -- Periodicals; Periodicals; 333.7923
• DOI: 10.1002/solr.202201009
• Languages: English
• ISSNs: 2367-198X

Abstract

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. Abstract : The impact of post‐annealing temperature on the defect properties and photovoltaic performance of hydrothermally grown antimony sulfoselenide solar cells is studied in this work. Post‐annealing is beneficial in increasing the grain size, crystallinity, crystal orientation, and compactness of the films and suppressing defects. Furthermore, a power conversion efficiency of 8.48% is obtained after optimizing the annealing process.