期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 3, 页码 2016-2022出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b14040
关键词
DC magnetron sputtering; {001} facet; TiO2 electron transport layer; perovskite solar cells; excellent performance
资金
- MOST [2014AA032802]
- Key Research Program of the Chinese Academy of Sciences [KFZD-SW-403]
- Science and Technology Commission of Shanghai Municipality (STCSM) [13NM1402200]
- Shanghai Municipal Natural Science Foundation [6ZR1441000]
The short circuit current density of perovskite solar cell (PSC) was boosted by modulating the dominated plane facets of TiO2 electron transport layer (ETL). Under optimized condition, TiO2 with dominant {001} facets showed (i) low incident light loss, (ii) highly smooth surface and excellent wettability for precursor solution, (iii) efficient electron extraction, and (iv) high conductivity in perovskite to photovoltaic application. A current density of 24.19 mA cm(-2) was achieved as a value near the maximum limit. The power conversion efficiency was improved to 17.25%, which was the record value of PSCs with DC magnetron sputtered carrier transport layer. What is more, the room-temperature process had a great significance for the cost reduction and flexible application of PSCs.
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