Circularly polarized luminescence enlargement from crystals to oriented films of enantiopure 2D hybrid perovskites?
Chemical Communications Pub Date: 2023-05-17 DOI: 10.1039/D3CC01739G
Abstract
Chiral 2D organic–inorganic hybrid perovskites (C-2D-OIHPs) with circularly polarized luminescence (CPL) have important promising applications in optical, electronic, and chiroptoelectronic devices. Herein, we report enantiomeric crystals of R/S-FMBA)2PbBr4. (FMBA = 4-fluorophenethylamine), which demonstrated bright room-temperature CPL emission. For the first time, the oriented films along the c-axis of this pair of C-2D-OIHPs exhibited a 16-fold increase in the asymmetry factors of absorbance (gCD) and a 5-fold rise in the asymmetry factors of CPL (glum), reaching up to ± 1 × 10?2.
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Journal Name：Chemical Communications
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CAS no.: 89640-58-4
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