Fig. 9: Perovskite nanocrystals and circularly polarized luminescence.

a Schematic structure of perovskite nanocrystals. Reproduced with permission from ref. ²⁶⁴. Copyright 2015, American Chemical Society. b Typical TEM image of perovskite nanocrystals (Scale bar, 50 nm). Reproduced with permission from ref. ²⁶². Copyright 2020, Springer Nature. c Colloidal perovskite nanocrystals exhibiting tailorable photonic bandgap across the entire visible spectral region. Reproduced with permission from ref. ²⁶⁴. Copyright 2015, American Chemical Society. d Chiral perovskite nanocrystals based on the chiral-ligand-assisted tip-sonication method. Reproduced with permission from ref. ²⁶⁸. Copyright 2019, American Chemical Society. e Chiral perovskite nanocrystals based on supramolecular soft templates. Reproduced with permission from ref. ³⁵. Copyright 2018, WILEY-VCH