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Rare Earth Complex as a High‐Efficiency Emitter in an Electroluminescent Device
Author(s) -
Hong Z. R.,
Liang C. J.,
Li R. G.,
Li W. L.,
Zhao D.,
Fan D.,
Wang D. Y.,
Chu B.,
Zang F. X.,
Hong L.S.,
Lee S.T.
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(200108)13:16<1241::aid-adma1241>3.0.co;2-6
Subject(s) - electroluminescence , materials science , common emitter , rare earth , optoelectronics , nanotechnology , engineering physics , metallurgy , physics , layer (electronics)
A red‐light emitting europium complex (see Figure) is investigated here as an alternative to traditional fluorescent materials, which have an inherent electroluminescence (EL) efficiency limited to 25 % of their photoluminescence (PL) efficiency. It is shown that by optimizing the structure of Eu complex–based devices significant improvements in the EL efficiency and stability can be obtained.