Managing Phase Purities and Crystal Orientation for High-Performance and Photostable Cesium Lead Halide Perovskite Solar Cells

被引：18

作者：

Wang, Qiong ^{[1
]}

Smith, Joel A. ^{[2
]}

Skroblin, Dieter ^{[3
]}

Steele, Julian A. ^{[4
]}

Wolf, Christian M. ^{[5
]}

Caprioglio, Pietro ^{[5
,6
]}

Stolterfoht, Martin ^{[5
]}

Koebler, Hans ^{[1
]}

Li, Meng ^{[1
,7
]}

Turren-Cruz, Silver-Hamill ^{[1
]}

Gollwitzer, Christian ^{[3
]}

Neher, Dieter ^{[5
]}

Abate, Antonio ^{[1
,8
,9
]}

机构：

[1] Helmholtz Zentrum Berlin Mat & Energie, Young Investigator Grp Act Mat & Interfaces Stabl, Kekulestr 5, D-12489 Berlin, Germany

[2] Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England

[3] Phys Tech Bundesanstalt PTB, Abbestr 2-12, D-10587 Berlin, Germany

[4] Katholieke Univ Leuven, Dept Microbial & Mol Syst, cMACS, Celestijnenlaan 200F, B-3001 Leuven, Belgium

[5] Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Golm, Germany

[6] Helmholtz Zentrum Berlin Mat & Energie GmbH, Young Investigator Grp Perovskite Tandem Solar Ce, Kekulestr 5, D-12489 Berlin, Germany

[7] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Peoples R China

[8] Univ Naples Federioco II, Dept Chem Mat & Prod Engn, Piazzale Tecchio 80, I-80125 Naples, Fuorigrotta, Italy

[9] Fuzhou Univ, Inst Adv Energy Mat, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China

来源：

SOLAR RRL | 2020年 / 4卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

cesium lead halides; crystal orientation; inorganic perovskites; ISOS-L-1I protocol; phase purity; photostability; RECOMBINATION; CSPBL(3); GROWTH;

D O I：

10.1002/solr.202000213

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：

Inorganic perovskites with cesium (Cs+) as the cation have great potential as photovoltaic materials if their phase purity and stability can be addressed. Herein, a series of inorganic perovskites is studied, and it is found that the power conversion efficiency of solar cells with compositions CsPbI1.8Br1.2, CsPbI2.0Br1.0, and CsPbI2.2Br0.8 exhibits a high dependence on the initial annealing step that is found to significantly affect the crystallization and texture behavior of the final perovskite film. At its optimized annealing temperature, CsPbI1.8Br1.2 exhibits a pure orthorhombic phase and only one crystal orientation of the (110) plane. Consequently, this allows for the best efficiency of up to 14.6% and the longest operational lifetime, T-S80, of approximate to 300 h, averaged of over six solar cells, during the maximum power point tracking measurement under continuous light illumination and nitrogen atmosphere. This work provides essential progress on the enhancement of photovoltaic performance and stability of CsPbI3 - xBrx perovskite solar cells.

引用

页数：9

共 44 条

[1] Conformal monolayer contacts with lossless interfaces for perovskite single junction and monolithic tandem solar cells [J].