Suppressing Buried Interface Nonradiative Recombination Losses Toward High-Efficiency Antimony Triselenide Solar Cells

被引：70

作者：

Chen, Guojie ^{[1
]}

Luo, Yandi ^{[1
,2
]}

Abbas, Muhammad ^{[1
]}

Ishaq, Muhammad ^{[1
]}

Zheng, Zhuanghao ^{[1
]}

Chen, Shuo ^{[1
]}

Su, Zhenghua ^{[1
]}

Zhang, Xianghua ^{[2
]}

Fan, Ping ^{[1
]}

Liang, Guangxing ^{[1
]}

机构：

[1] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen Key Lab Adv Thin Films & Applicat, Key Lab Optoelect Devices & Syst,Minist Educ & Gua, Shenzhen 518060, Guangdong, Peoples R China

[2] Univ Rennes, Inst Sci Chim Rennes, UMR 6226, F-35000 Rennes, France

来源：

ADVANCED MATERIALS | 2024年 / 36卷 / 05期

基金：

中国国家自然科学基金;

关键词：

carrier transport; efficiency; nonradiative recombination losses; Sb2Se3 solar cells; PHOTOVOLTAICS; FILM; TRANSPORT;

D O I：

10.1002/adma.202308522

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Antimony triselenide (Sb2Se3) has possessed excellent optoelectronic properties and has gained interest as a light-harvesting material for photovoltaic technology over the past several years. However, the severe interfacial and bulk recombination obviously contribute to significant carrier transport loss thus leading to the deterioration of power conversion efficiency (PCE). In this work, buried interface and heterojunction engineering are synergistically employed to regulate the film growth kinetic and optimize the band alignment. Through this approach, the orientation of the precursor films is successfully controlled, promoting the preferred orientational growth of the (hk1) of the Sb2Se3 films. Besides, interfacial trap-assisted nonradiative recombination loss and heterojunction band alignment are successfully minimized and optimized. As a result, the champion device presents a PCE of 9.24% with short-circuit density (J(SC)) and fill factor (FF) of 29.47 mA cm(-2) and 63.65%, respectively, representing the highest efficiency in sputtered-derived Sb2Se3 solar cells. This work provides an insightful prescription for fabricating high-quality Sb2Se3 thin film and enhancing the performance of Sb2Se3 solar cells.

引用

页数：14

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