Post‐Annealing Treatment on Hydrothermally Grown Antimony Sulfoselenide Thin Films for Efficient Solar Cells
Post‐Annealing Treatment on Hydrothermally Grown Antimony Sulfoselenide Thin Films for Efficient Solar Cells
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用于高效太阳能电池的水热生长硫硒化锑薄膜的后退火处理
DOI：
10.1002/solr.202201009
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发表时间：
2022
期刊：
影响因子：
7.9
通讯作者：
Pokhrel, Dipendra
中科院分区：
文献类型：
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作者：
Rijal, Suman;Adhikari, Alisha;Awni, Rasha A.;Xiao, Chuanxiao;Li, Deng-Bing;Dokken, Briana;Ellingson, Anna;Flores, Ernesto;Bista, Sandip S.;Pokhrel, Dipendra
本文中，通过水热方法随后在不同温度下进行沉积后退火工艺来制备硫硒化锑（Sb 2（S，Se）3）薄膜太阳能电池，并且研究退火温度对水热生长的Sb 2（S，Se）3薄膜的形态、结构、光电和缺陷性质的影响。研究发现，适当的退火温度可使Sb 2（S，Se）3薄膜具有大晶粒、高结晶度、择优晶向、光滑均匀的形貌和较低的缺陷密度。这些结果表明，抑制深能级缺陷对提高太阳能电池性能至关重要。优化退火工艺后，获得了功率转换效率提高2.04 ~ 8.48%的Sb 2（S，Se）3太阳电池。
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)3films is investigated. It is found that a proper annealing temperature leads to high‐quality Sb2(S, Se)3films 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)3solar cells with an improved power conversion efficiency 2.04 to 8.48% are obtained.