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Versatile Molecular Functionalization for Inhibiting Concentration Quenching of Thermally Activated Delayed Fluorescence
Author(s) -
Lee Jiyoung,
Aizawa Naoya,
Numata Masaki,
Adachi Chihaya,
Yasuda Takuma
Publication year - 2017
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.201604856
Subject(s) - quenching (fluorescence) , materials science , fluorescence , photoluminescence , electroluminescence , energy transfer , electron transfer , förster resonance energy transfer , photochemistry , information exchange , electron , nanotechnology , optoelectronics , computer science , chemical physics , chemistry , physics , optics , telecommunications , nuclear physics , layer (electronics)
Concentration quenching of thermally activated delayed fluorescence is found to be dominated by electron‐exchange interactions, as described by the Dexter energy‐transfer model. Owing to the short‐range nature of the electron‐exchange interactions, even a small modulation in the molecular geometric structure drastically affects the concentration‐quenching, leading to enhanced solid‐state photoluminescence and electroluminescence quantum efficiencies.