Premium
Enantiomeric MOF Crystals Using Helical Channels as Palettes with Bright White Circularly Polarized Luminescence
Author(s) -
Zhang Chong,
Yan ZhiPing,
Dong XiYan,
Han Zhen,
Li Si,
Fu Ting,
Zhu YanYan,
Zheng YouXuan,
Niu YunYin,
Zang ShuangQuan
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202002914
Subject(s) - luminescence , chirality (physics) , circular polarization , materials science , photoluminescence , enantiomer , quantum yield , crystallography , nanotechnology , optoelectronics , optics , fluorescence , stereochemistry , chemistry , physics , chiral symmetry breaking , quantum mechanics , nambu–jona lasinio model , quark , microstrip
The host–guest chemistry of metal–organic frameworks (MOFs) has enabled the derivation of numerous new functionalities. However, intrinsically chiral MOFs (CMOFs) with helical channels have not been used to realize crystalline circularly polarized luminescence (CPL) materials. Herein, enantiomeric pairs of MOF crystals are reported, where achiral fluorophores adhere to the inner surface of helical channels via biology‐like H‐bonds and hence inherit the helicity of the host MOFs, eventually amplifying the luminescence dissymmetry factor ( g lum ) of the host l / d ‐CMOF (±1.50 × 10 −3 ) to a maximum of ±0.0115 for the composite l / d ‐CMOF⊃fluorophores. l / d ‐CMOF⊃fluorophores in pairs generate bright color‐tunable CPL and almost ideal white CPL (0.33, 0.32) with a record‐high photoluminescence quantum yield of ≈30%, which are further assembled into a white circularly polarized light‐emitting diode. The present strategy opens a new avenue for propagating the chirality of MOFs to realize universal chiroptical materials.