Study on the performance of CuBr2 doped Cs2AgBiBr6 perovskite solar cells with carbon electrode and without a hole-transporting layer

被引：3
作者：
Ma, Xingyu [1 ]
Chen, Junjie [1 ]
Zhou, Maojun [1 ]
Gong, Li [1 ]
Lu, Yangfan [2 ]
Zhou, Conghua [3 ]
Chen, Jianlin [4 ]
Chao, Zisheng [1 ]
Fan, Jincheng [1 ]
机构：
[1] Changsha Univ Sci & Technol, Sch Mat Sci & Engn, Changsha 410114, Peoples R China
[2] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China
[3] Cent South Univ, Sch Phys & Elect, Hunan Key Lab Supermicrostruct & Ultrafast Proc, Changsha 410083, Peoples R China
[4] Changsha Univ Sci & Technol, Sch Energy & Power Engn, Changsha 410114, Peoples R China
来源：
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2023年 / 164卷
关键词：
Cs; 2; AgBiBr; 6; CuBr; Carbon electrode; Hole -transporting -layer free; Perovskite solar cell; RECORD-EFFICIENCY; VAPOR; FILMS;
D O I：
10.1016/j.mssp.2023.107618
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Lead-free double perovskite Cs2AgBiBr6 has attracted much attention due to its environmental stability and low toxicity, which has bee used in photovoltaic devices. Unfortunately, the power conversion efficiency (PCE) is relatively low owing to poor-quality film. In this paper, CuBr2 was added in the precursor to improve the crystalline of the perovskite film. Maybe Cu2+ was reduced to Cu + by DMSO, so Cu + existed in the Cs2(Ag1-xCux) BiBr6 perovskite films. The carbon electrode-based and hole-free solar cells with the planar structure of FTO/cTiO2/Cs2(Ag1-xCux)BiBr6/C were fabricated. The effect of CuBr2 content on the performance of solar cells were studied. When the content of CuBr was 1 at.%, the solar cell exhibited the optimal PCE of 1.30%, which was increased by 52%, compared with the original solar cell. And the PCE for the planar structure in this work was the highest, compared with that in the other reported works.
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页数：7
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