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Phosphorescence in Conjugated Poly( para ‐phenylene)‐Derivatives
Author(s) -
Hertel D.,
Setayesh S.,
Nothofer H. G.,
Scherf U.,
Müllen K.,
Bässler H.
Publication year - 2001
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 - 10.1002/1521-4095(200101)13:1<65::aid-adma65>3.0.co;2-q
Subject(s) - phosphorescence , materials science , conjugated system , excited state , oled , phenylene , photochemistry , fluorescence , triplet state , polymer , population , diode , radiative transfer , optoelectronics , chemical physics , nanotechnology , atomic physics , optics , chemistry , physics , demography , layer (electronics) , sociology , composite material
The quantum efficiency of fluorescent light emitting diodes is limited by the occurrence of non‐radiative decay of triplet states. It is therefore important to improve the understanding of the first excited triplet state, its lifetime, and its population and depopulation mechanisms. The variation of the characteristics of this triplet state with chemical structure are examined for a series of conjugated polymers with the aim of improving the performance of organic LEDs.