Sai‐Wing Tsang

Organic n‐Type Molecule Mediated Crystallization Regulation for Sn‐Pb Perovskite Solar Cells

ABSTRACT Narrow‐bandgap Sn‐Pb perovskites have showcased great potential for constructing tandem perovskite solar cells (PSCs). However, Sn 2 + in Sn‐Pb PSCs is readily oxidized to Sn 4 + , and such B‐site Sn 4 + will introduce excess positive charge and causes severe p‐type self...

Mitigating Stress‐Induced Nonphotoactive Phase Transition Through Sodium Sulfonate Engineering for Stable and Efficient Perovskite Solar Cells

ABSTRACT Formamidinium lead triiodide (FAPbI 3 ) perovskite solar cells (PSCs) have attracted significant attention due to their outstanding optoelectronic properties. However, their long‐term stability remains limited by lattice strain‐induced transition from the photoactive α‐p...