Xiaxia Qin

1 Introduction CsPbBr3 is a typical perovskite solar cell material that possesses remarkable characteristics,[1] including excellent broadband absorption,[1, 2] tunable fluorescence wavelengths,[2, 3] high fluorescence quantum yield,[2, 4, 5] efficient charge transfer,[6] narrow full width at half maximum, and high color purity of emission.[7-10] It has attracted significant attention for its potential application in fields such as solar cells,[1, 11, 12] light-emitting diodes,[13-15] and...