Surface Engineering of ZnO Thin Film for High Efficiency Planar Perovskite Solar Cells

被引：156
|
作者：
Tseng, Zong-Liang [1 ]
Chiang, Chien-Hung [1 ]
Wu, Chun-Guey [1 ,2 ]
机构：
[1] Natl Cent Univ, Res Ctr New Generat Photovolta, Jhongli 32001, Taiwan
[2] Natl Cent Univ, Dept Chem, Jhongli 32001, Taiwan
来源：
SCIENTIFIC REPORTS | 2015年 / 5卷
关键词：
ZINC-OXIDE; ELECTRON; CH3NH3PBI3; LENGTHS;
D O I：
10.1038/srep13211
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Sputtering made ZnO thin film was used as an electron-transport layer in a regular planar perovskite solar cell based on high quality CH3NH3PbI3 absorber prepared with a two-step spin-coating. An efficiency up to 15.9% under AM 1.5G irradiation is achieved for the cell based on ZnO film fabricated under Ar working gas. The atmosphere of the sputtering chamber can tune the surface electronic properties (band structure) of the resulting ZnO thin film and therefore the photovoltaic performance of the corresponding perovskite solar cell. Precise surface engineering of ZnO thin film was found to be one of the key steps to fabricate ZnO based regular planar perovskite solar cell with high power conversion efficiency. Sputtering method is proved to be one of the excellent techniques to prepare ZnO thin film with controllable properties.
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页数：10
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