The study of colloidal lead bromide perovskite nanocrystals and its application in hybrid solar cells
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In this study, we investigated inorganic cesium lead halide perovskite semiconductor and tested its application in photovoltaics. Highly crystalline material was synthesized by two different approaches, including a high temperature route and a low temperature method. Inorganic-polymer hybrid solar cells based on solution-deposited layers of CsPbBr3 nanocrystals were successfully fabricated in ambient, with and without post treatments. The solar cells employing nanocrystals with short ligands, obtained from low temperature route, outperformed the devices with long ligands. The devices exhibited an efficiency up to 1.16%, with an open circuit voltage (Voc) of 0.87 V, a fill factor of 56.2% and a short-circuit current density (Jsc) of 2.38 mA/cm2.
KeywordsCsPbBr3 Inorganic perovskite Metal lead halide perovskite Hybrid solar cells
This work was supported by National Natural Science Foundation of China (No. 51502313), Zhejiang Provincial Natural Science Foundation (No. LY16E020006), Zhejiang Province Science and Technology Plan (No. 2018C01047). In addition, K.U. would also like to acknowledge the financial contribution for his research work supported by CAS-TWAS President’s fellowship.
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Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
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