Performance enhancement of CsPbI2Br perovskite solar cells via stoichiometric control and interface engineering

被引：9

作者：

Fatima, Kalsoom ^{[1
,2
,3
]}

Haider, Muhammad Irfan ^{[1
,2
]}

Fakharuddin, Azhar ^{[3
]}

Akhter, Zareen ^{[2
]}

Sultan, Muhammad ^{[1
]}

Schmidt-Mende, Lukas ^{[3
]}

机构：

[1] Quaid I Azam Univ Campus, Natl Ctr Phys, Nanosc & Technol Dept, Islamabad 44000, Pakistan

[2] Quaid I Azam Univ, Dept Chem, Islamabad 45320, Pakistan

[3] Univ Konstanz, Dept Phys, D-78457 Constance, Germany

来源：

SOLAR ENERGY | 2020年 / 211卷

关键词：

Non-stoichiometric; Perovskite solar cell; Stability; Charge transport layer; Interfacial modification; LEAD HALIDE PEROVSKITES; IMPROVED STABILITY; LIGHT; DEGRADATION; EFFICIENCY; HYBRID; IMPACT;

D O I：

10.1016/j.solener.2020.10.007

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Caesium based inorganic halide perovskite are promising alternatives to address the degradation issue of the organic-inorganic hybrid halide perovskites. However, high iodine content in these inorganic perovskites leads to structural instability upon exposure to moisture. In this work, the stoichiometry of CsPbI2Br perovskite is slightly tuned and its effect on structural stability and device performance is studied. Afterward, the charge transport layers are optimized to improve the charge extraction in perovskite solar cells. Finally, the device performance is further improved via interfacial modification. The optimized device yielded a power conversion efficiency (PCE) of 9.7%.

引用

页码：654 / 660

页数：7

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