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Long‐Lived Room‐Temperature Phosphorescence of Coronene in Zeolitic Imidazolate Framework ZIF‐8
Author(s) -
Mieno Hiroyuki,
Kabe Ryota,
Notsuka Naoto,
Allendorf Mark D.,
Adachi Chihaya
Publication year - 2016
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201600103
Subject(s) - coronene , phosphorescence , imidazolate , materials science , zeolitic imidazolate framework , fluorescence , exciton , common emitter , photochemistry , luminescence , optoelectronics , metal organic framework , nanotechnology , chemistry , inorganic chemistry , molecule , organic chemistry , condensed matter physics , optics , physics , adsorption
Long‐lived phosphorescence is demonstrated with an emission lifetime of 22.4 s at room temperature from coronene‐ d 12 encapsulated in the zeolitic imidazolate framework ZIF‐8. The guest emitter coronene‐ d 12 is well isolated in the rigid framework of ZIF‐8, enabling long‐lived triplet excitons even at higher than 300 K. It is also demonstrated that thermally activated delayed fluorescence can be achieved at temperatures >300 K.