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Three‐Color White Electroluminescence from a Single Polymer System with Blue, Green and Red Dopant Units as Individual Emissive Species and Polyfluorene as Individual Polymer Host
Author(s) -
Liu J.,
Chen L.,
Shao S. Y.,
Xie Z. Y.,
Cheng Y. X.,
Geng Y. H.,
Wang L. X.,
Jing X. B.,
Wang F. S.
Publication year - 2007
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.200701104
Subject(s) - polyfluorene , electroluminescence , materials science , dopant , luminous efficacy , polymer , color rendering index , optoelectronics , doping , white light , layer (electronics) , nanotechnology , composite material
A white electroluminescent single polymer system with both high electroluminescence efficiency and excellent color rendering index (CRI) value is developed by covalently attaching blue, green, and red dopant units as individual light‐emitting species to the side chain of polyfluorene as individual polymer host. A luminous efficiency of 8.6 cd A –1 , CIE coordinates of (0.33, 0.36) and CRI value of 88 was demonstrated with their single‐layer devices.