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Updated: Mar 7, 2026

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
Precise Morphology Control and Continuous Fabrication of Perovskite Solar Cells Using Droplet-Controllable
Seung Chan Hong1,2, Gunhee Lee1,2, Kyungyeon Ha2
1Department of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea.
Abstract:
Herein, we developed a novel electrospray coating system for continuous fabrication of perovskite solar cells with high performance. Our system can systemically control the size of CH3NH3PbI3 precursor droplets by modulating the applied electrical potential, shown to be a crucial factor for the formation of perovskite films. As a result, we have obtained pinhole-free and large grain-sized perovskite solar cells, yielding the best PCE of 13.27% with little photocurrent hysteresis. Furthermore, the average PCE through the continuous coating process was 11.56 ± 0.52%. Our system demonstrates not only the high reproducibility but also a new way to commercialize high-quality perovskite solar cells.
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