Fig. 10: Chiral perovskite nanocrystals based on chiral liquid-crystalline template.

a The principle of CPL induced by the cholesteric superstructure. b Photographs of liquid crystal-templated chiral perovskite films observed through a right-handed circular polarizer and a left-handed circular polarizer, respectively. c Luminescent spectra for chiral perovskite film exhibiting green luminescence probed with and without the polarizer. d g-factor for right-handed CPL from green chiral perovskite film. e The emission spectrum of a green chiral perovskite film and the reflection spectra of chiral liquid-crystalline film observed at 0° and 30° viewing angle. Reproduced with permission from ref. ²⁷⁰. Copyright 2019, WILEY-VCH