期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 100, 期 1, 页码 176-184出版社
WILEY
DOI: 10.1111/jace.14491
关键词
electron transport layer; oxygen pressure; perovskite solar cell; pulsed laser deposition; zinc oxide
资金
- NSFC [51472110, 11174112]
- Shandong Provincial Natural Science Foundation [JQ201214, 2014ZRB01A47]
- postgraduate innovation project [YCXB15001]
ZnO thin films prepared by pulsed laser deposition at low temperature are utilized as the electron transport layer in CH3NH3PbI3-xClx-based perovskite solar cells with a planar heterojunction structure. Oxygen pressure greatly influences the transparent and conductive properties of ZnO films, which are extremely important as electron transport layer for the perovskite solar cells. The transparent and conductive properties of the films under different oxygen pressures are studied by ultraviolet-visible spectrophotometer and Hall effect measurement system. Through controlling the oxygen pressure, transparent ZnO films with high conductivity are grown and adopted as electron transport layer for planar perovskite solar cell with a power conversion efficiency of 6.3%. After further surface modification of ZnO electron transport layer with [6,6]-phenyl-C61-butyric acid methyl ester, the efficiency of the planar solar cell increases to 7.5%.
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