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Triplet Harvesting: Triplet Harvesting by a Conventional Fluorescent Emitter Using Reverse Intersystem Crossing of Host Triplet Exciplex (Advanced Optical Materials 7/2015)
Author(s) -
Kim KwonHyeon,
Moon ChangKi,
Sun Jin Won,
Sim Bomi,
Kim JangJoo
Publication year - 2015
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.201570039
Subject(s) - intersystem crossing , fluorescence , materials science , excimer , exciton , common emitter , optoelectronics , photochemistry , quantum efficiency , triplet state , dopant , optics , excited state , doping , chemistry , singlet state , atomic physics , physics , quantum mechanics
A red fluorescent organic light‐emitting device with an unprecedented external quantum efficiency of 10.6% is created by J.‐J. Kim and co‐workers using an exciplex‐forming system as a host for a conventional fluorescent dopant, not showing delayed fluorescence. On page 895, quantitative analysis indicates that over 35% of the total excitons are converted to emission light, clearly indicating triplet harvesting in the system.