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Molecular Origin of the Temperature‐Dependent Energy Migration in a Rigid‐Rod Ladder‐Phenylene Molecular Host
Author(s) -
Wiesenhofer H.,
Zojer E.,
List E. J. W.,
Scherf U.,
Brédas J.L.,
Beljonne D.
Publication year - 2006
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.200501473
Subject(s) - materials science , intramolecular force , phenylene , chemical physics , excitation , luminescence , coupling (piping) , energy transfer , diffusion , host (biology) , molecular vibration , molecular dynamics , molecular physics , molecule , condensed matter physics , optoelectronics , polymer , computational chemistry , composite material , thermodynamics , stereochemistry , chemistry , ecology , physics , biology , organic chemistry , electrical engineering , engineering
Excitation diffusion is studied in a molecular host doped with a luminescent guest. An atomistic model based on the coupling of the electronic excitations to low‐frequency intramolecular vibrations reproduces remarkably well the measured temperature‐dependent host‐to‐guest energy transfer efficiency (see Figure).