Photoinduced phase segregation and degradation of perovskites revealed by x-ray photoelectron spectroscopy

被引：0

作者：

Felix, Roberto ^{[1
]}

Rehermann, Carolin ^{[2
]}

Liu, Dongyang ^{[1
]}

Handick, Evelyn ^{[1
]}

Hartmann, Claudia ^{[1
]}

Wilks, Regan G. ^{[1
,3
]}

Unger, E. ^{[2
,4
]}

Baer, Marcus ^{[1
,3
,5
,6
]}

机构：

[1] Helmholtz Zentrum Berlin Mat & Energie GmbH HZB, Interface Design, D-14109 Berlin, Germany

[2] HZB, Young Investigator Grp Hybrid Mat Format & Scalin, D-12489 Berlin, Germany

[3] HZB, Energy Mat Insitu Lab Berlin EMIL, D-12489 Berlin, Germany

[4] Lund Univ, Chem Phys & NanoLund, S-22100 Lund, Sweden

[5] Helmholtz Inst Erlangen Nurnberg Renewable Energy, D-12489 Berlin, Germany

[6] Friedrich Alexander Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91058 Erlangen, Germany

来源：

2019 IEEE 46TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2019年

关键词：

halide hybrid organic-inorganic perovskite absorbers; halide inorganic perovskite absorbers; thin-film photovoltaic cells; chemical structure; x-ray photoelectron spectroscopy; STABILITY; LEAD;

D O I：

10.1109/pvsc40753.2019.8980746

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：

Pb-based perovskite absorbers with organic (i.e., CH3NH3+) and inorganic (i.e., Cs+) cations and a halide composition of 75% Br and 25% I are investigated with x-ray photoelectron spectroscopy while submitted to environmental stress factors to study their stability. Changes in chemical properties of the absorbers were monitored in ultra-high vacuum and under simulated solar, as well as, x-ray irradiation. Although changes are detected for both types of perovskite absorbers, the organic cation perovskite exhibits a more pronounced tendency to photodegrade.

引用

页码：2362 / 2367

页数：6

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