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Control the crystal size by varying concentrations of precursors for the planar perovskite solar cells
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 Title & Authors
Control the crystal size by varying concentrations of precursors for the planar perovskite solar cells
Xie, Lin; Hwang, Heewon; Kim, Minjung; Kim, Kyungkon;
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 Abstract
The influence of the grain size of the on the solar cell performance is investigated by controlling the ratio between and precursors. As the concentration of the precursors increased from 1.0M to 2.0M, the grain size increased from ~100nm to ~400nm. The solar cell utilizing the with large grain size shows improved photocurrent compared to the solar cell utilizing with small grain size, which is ascribed to the reduced recombination at the boundaries of grains.
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 Language
English
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 References
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