期刊
ELECTROCHIMICA ACTA
卷 213, 期 -, 页码 83-88出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.07.095
关键词
hole transport material free; perovskite solar cells; controllable electron-transport layer; P25 nanoparticles
资金
- National Basic Research Program of China [2011CB933300]
- National Science Fund for Distinguished Young Scholars [50125309]
- National Natural Science Foundation of China [51272184, 91433203]
A facile approach to fabricate low-cost hole-transport-material (HTM)-free perovskite solar cell(PSC) based on commercial P25 nanoparticles and bilayer hybrid carbon electrode under ambient condition is reported. The performance of such HTM-free PSCs are highly dependent on the thickness and morphology of the P25 based TiO2 electron-transport layer(ETL), which can be adjusted by the amount of ethanol and ethyl cellulose in the paste. After optimization, a power conversion efficiency of 12.48% is obtained, which is enhanced by 20.46% compared with solar cells employing hydrothermal TiO2 ETL. In addition, PSCs with P25 ETL also exhibit excellent long-term stability together with reduced hysteresis. With advantages of low-cost, high efficiency and facile fabrication process, commercial P25 nanoparticles based PSC is highly potential for future commercialization. (C) 2016 Elsevier Ltd. All rights reserved.
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