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The First Single Polymer with Simultaneous Blue, Green, and Red Emission for White Electroluminescence
Author(s) -
Liu J.,
Zhou Q. G.,
Cheng Y. X.,
Geng Y. H.,
Wang L. X.,
Ma D. G.,
Jing X. B.,
Wang F. S.
Publication year - 2005
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.200501850
Subject(s) - electroluminescence , materials science , chromophore , green light , white light , blue light , red light , polymer , luminance , light emission , optoelectronics , optics , photochemistry , nanotechnology , chemistry , physics , botany , biology , layer (electronics) , composite material
A light‐emitting polymer with simultaneous blue (λ max = 445 nm), green (λ max = 515 nm), and red light (λ max = 624 nm) emission for bias‐independent white electroluminescence is reported (see Figure). The polymer is synthesized by covalently attaching a green‐light‐emissive and a red‐light‐emissive chromophore to a macromolecule with blue‐light emission. White‐light color coordinates of (0.31, 0.34) and a luminance efficiency of 1.59 cd A –1 are obtained.