期刊
APPLIED PHYSICS LETTERS
卷 110, 期 26, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4989560
关键词
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资金
- Fundamental Research Funds for the Central Universities [XDJK2016C005]
- China Postdoctoral Science Foundation [2015M582495]
- Southwest University [SWU111071]
- Theme-based Research Scheme from the Research Grants Council of the Hong Kong Special Administrative Region, China [T23-407/13-N]
Perovskite solar cells (PSCs) demonstrate excellent high efficiencies over 20% and potential for a highly scalable manufacturing process. The work function of a transparent electrode (e.g., fluorine doped tin oxide, FTO) plays a critical role in the extraction and collection of electrons in PSCs. In this work, a chlorinated FTO (Cl-FTO) electrode with a high work function is used to fabricate a planar PSC at a low temperature of 100 degrees C with an optimal efficiency of 13.39% for a great improvement of 49% than plain FTO based cells. The change in the work function of FTO and Cl-FTO can reach up to 0.6 eV. The enhancement scientific insight is further explored, indicating that the increased work function of Cl-FTO provides well-matched energy levels between FTO and the CH3NH3PbI3 active material, facilitating the electron extraction and collection. Published by AIP Publishing.
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