Author

Bao-Min Xu

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Open access Sep 2026

Precursor-Level Molecular Coupling Enables High-Fill-Factor Wide-Bandgap Perovskite Solar Cells and 29.63% All-Perovskite Tandems.

Wide-bandgap (WBG) perovskites with a ∼1.78 eV bandgap are essential for monolithic all-perovskite tandem cells, yet their efficiency and stability are limited by complex precursor chemistry, uncontrolled crystallization, defect formation, and photoinduced halide segregation. Here, we report 4-(3-Carbamimidoylguanidino...

Kai-Xin Huang, Xian-Yong Zhou, Yin-Tai Xu et al. · Advances in Materials · 0 citations

Open access Aug 2026

Hole transport layers regulate polaron formation in perovskite solar cells

The mechanisms by which hole transport layers (HTLs) regulate carrier relaxation and polaron formation at perovskite interfaces remain poorly understood, despite their critical role in determining photovoltaic performance. Here, we combine transient absorption spectroscopy and time-resolved photoluminescence to elucida...

Xiaojian Niu, Pei-De Zhu, Ruo-Ying Pang et al. · Energy Z · 0 citations