perovskite solar cells;
sequential deposition;
CsPbBr3;
highly efficient and stability;
porous PbBr2;
FILMS;
D O I:
10.3390/coatings14070918
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
All-inorganic CsPbBr3 perovskite solar cells have garnered extensive attention in the photovoltaic domain due to their remarkable environmental stability. Nevertheless, CsPbBr3 prepared using the conventional sequential deposition method suffers from issues such as inferior crystallinity, low phase purity, and poor film morphology. Herein, we propose a pre-crystallization methodology by introducing a minute quantity of CsBr into the PbBr2 precursor solution to generate a small amount of CsPb2Br5 crystals within the PbBr2 film, leading to a porous PbBr2 film with enhanced crystallinity. Under the influence of more pores and CsPb2Br5 crystals as nucleation sites for inducing growth, a CsPbBr3 film with a larger crystal size, lower grain boundary density, stronger crystallinity, and higher phase purity is formed. Compared with untreated devices, photovoltaic devices prepared using the pre-crystallization method achieved a champion photovoltaic conversion efficiency (PCE) of 8.62%. Furthermore, pre-crystallized devices demonstrate higher stability than untreated ones and can still retain 94% of the original PCE after being exposed to air for 1000 h without encapsulating.
机构:
Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R ChinaJilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
Yang, Zhenyu
Yang, Jiandong
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机构:
Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R ChinaJilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
Yang, Jiandong
Chen, Yan
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机构:
Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R ChinaJilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
Chen, Yan
Zhang, Wenhui
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机构:
Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R ChinaJilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
Zhang, Wenhui
Lin, Feng
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机构:
Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R ChinaJilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
Lin, Feng
Yang, Wenshu
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机构:
Jilin Univ, Sch Mat Sci & Engn, Changchun 130012, Peoples R ChinaJilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
Yang, Wenshu
Fu, Wuyou
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机构:
Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R ChinaJilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
机构:
Jinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R China
Zhao, Yuanyuan
Wang, Yudi
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机构:
Jinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R China
Wang, Yudi
Duan, Jialong
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h-index: 0
机构:
Jinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R China
Duan, Jialong
Yang, Xiya
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机构:
Jinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R China
Yang, Xiya
Tang, Qunwei
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h-index: 0
机构:
Jinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R China
机构:
Jinan Univ, Inst New Energy Technol, Coll Informat Sci & Technol, Guangzhou 510632, Guangdong, Peoples R ChinaJinan Univ, Inst New Energy Technol, Coll Informat Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China
Ding, Jie
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h-index:
机构:
Zhao, Yuanyuan
Duan, Jialong
论文数: 0引用数: 0
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机构:
Ocean Univ China, Sch Mat Sci & Engn, 238 Songling Rd, Qingdao 266100, Peoples R ChinaJinan Univ, Inst New Energy Technol, Coll Informat Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China
Duan, Jialong
He, Benlin
论文数: 0引用数: 0
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机构:
Ocean Univ China, Sch Mat Sci & Engn, 238 Songling Rd, Qingdao 266100, Peoples R ChinaJinan Univ, Inst New Energy Technol, Coll Informat Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China
He, Benlin
Tang, Qunwei
论文数: 0引用数: 0
h-index: 0
机构:
Jinan Univ, Inst New Energy Technol, Coll Informat Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China
Qingdao Natl Lab Marine Sci & Technol, Joint Lab Deep Blue Fishery Engn, Qingdao 266237, Peoples R ChinaJinan Univ, Inst New Energy Technol, Coll Informat Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China