锑
材料科学
热液循环
退火(玻璃)
粒度
光伏系统
太阳能电池
纳米技术
沉积(地质)
化学工程
光电子学
冶金
地质学
电气工程
工程类
古生物学
沉积物
作者
Rongfeng Tang,Xiaomin Wang,Weitao Lian,Jialiang Huang,Qi Wei,Menglin Huang,Yiwei Yin,Chenhui Jiang,Shangfeng Yang,Guichuan Xing,Shiyou Chen,Changfei Zhu,Xiaojing Hao,Martin A. Green,Tao Chen
出处
期刊:Nature Energy
[Springer Nature]
日期:2020-07-20
卷期号:5 (8): 587-595
被引量:396
标识
DOI:10.1038/s41560-020-0652-3
摘要
Antimony selenosulfide, Sb2(S,Se)3, has attracted attention over the last few years as a light-harvesting material for photovoltaic technology owing to its phase stability, earth abundancy and low toxicity. However, the lack of a suitable material processing approach to obtain Sb2(S,Se)3 films with optimal optoelectronic properties and morphology severely hampers prospects for efficiency improvement. Here we demonstrate a hydrothermal approach to deposit high-quality Sb2(S,Se)3 films. By varying the Se/S ratio and the temperature of the post-deposition annealing, we improve the film morphology, increase the grain size and reduce the number of defects. In particular, we find that increasing the Se/S ratio leads to a favourable orientation of the (Sb4S(e)6)n ribbons (S(e) represents S or Se). By optmizing the hydrothermal deposition parameters and subsequent annealing, we report a Sb2(S,Se)3 cell with a certified 10.0% efficiency. This result highlights the potential of Sb2(S,Se)3 as an emerging photovoltaic material. Antimony chalcogenides are emerging photovoltaic materials, yet difficulties in fabricating high-quality films limit device performance. We show that hydrothermal synthesis affords good morphology and reduced defects in antimony selenosulfide films, enabling solar cells with an efficiency of 10%.
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