Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells

Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells

Lead thiocyanate in the perovskite precursor can increase the grain size of a perovskite thin film and reduce the conductivity of the grain boundaries, leading to perovskite solar cells with reduced hysteresis and enhanced fill factor. A planar perovskite solar cell with grain boundary and interface...

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Veröffentlicht in:Advanced materials (Weinheim) 2016-07, Vol.28 (26), p.5214-5221
Hauptverfasser: Ke, Weijun, Xiao, Chuanxiao, Wang, Changlei, Saparov, Bayrammurad, Duan, Hsin-Sheng, Zhao, Dewei, Xiao, Zewen, Schulz, Philip, Harvey, Steven P., Liao, Weiqiang, Meng, Weiwei, Yu, Yue, Cimaroli, Alexander J., Jiang, Chun-Sheng, Zhu, Kai, Al-Jassim, Mowafak, Fang, Guojia, Mitzi, David B., Yan, Yanfa
Format: Artikel
Sprache:eng
Schlagworte:
Grain boundaries
grain boundary passivation
Grain size
Hysteresis
interface passivation
MATERIALS SCIENCE
perovskite solar cells
Perovskites
Photovoltaic cells
Solar cells
SOLAR ENERGY
Thin films
Thiocyanates
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Zusammenfassung:Lead thiocyanate in the perovskite precursor can increase the grain size of a perovskite thin film and reduce the conductivity of the grain boundaries, leading to perovskite solar cells with reduced hysteresis and enhanced fill factor. A planar perovskite solar cell with grain boundary and interface passivation achieves a steady‐state efficiency of 18.42%.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201600594