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Updated: Jun 17, 2026

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Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
Published on: March 19, 2017
Self-assembled anchoring shell on NiOx nanocrystals enables efficient and stable wide-bandgap perovskite solar cells
Sheng Li1,2, Chengyue Luo1, Qiuhan Yu1
1School of Physics and Technology, Wuhan University, Wuhan, China. zp.wang@whu.edu.cn.
Abstract:
By replacing surface hydroxyls with bidentate carboxylate coordination, we construct a core-shell PO-NiOx hole transport layer that exhibits elevated zeta potential and superior colloidal stability, enabling pinhole-free films. The resulting 1.68 eV wide-bandgap perovskite solar cells achieve a champion PCE of 23.4%, a four-terminal tandem efficiency of 28.2%, and significantly enhanced thermal stability.

