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Electroluminescence: Confinement of Long‐Lived Triplet Excitons in Organic Semiconducting Host–Guest Systems (Adv. Funct. Mater. 40/2017)
Author(s) -
Notsuka Naoto,
Kabe Ryota,
Goushi Kenichi,
Adachi Chihaya
Publication year - 2017
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201770240
Subject(s) - electroluminescence , materials science , common emitter , exciton , energy transfer , organic semiconductor , oled , host (biology) , optoelectronics , nanotechnology , atomic physics , condensed matter physics , physics , ecology , layer (electronics) , biology
In article number 1703902 , Ryota Kabe, Chihaya Adachi, and co‐workers investigate the confinement of longlived triplet excitons in organic semiconducting host‐guest systems. Dispersing an organic emitter (center) in an organic host with an insufficiently high triplet energy (right) shortens emission duration because of energy transfer from emitter to host. Only with a host having a very large triplet energy (left) can energy transfer be suppressed and the longest emission obtained.