Alternating chiral and achiral spacers for constructing two-dimensional chiral hybrid perovskites toward circular-polarization-sensitive photodetection

Using a half substitution strategy, a pair of 2D chiral hybrid perovskites with alternating spacers, ( R / S -phenylpropylamine)(pentylamine)PbBr 4 , are derived from an achiral (pentylamine) 2 PbBr 4 for circularly polarized light detection.