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1. 中国科学院长春光学精密机械与物理研究所,吉林 长春,130021
2. 中国科学院激发态物理开放研究实验室, 吉林长春130021
纸质出版日期:2000-8-30,
收稿日期:2000-6-22,
修回日期:2000-8-1,
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李文连. 稀土有机聚合物EL进展及其若干问题[J]. 发光学报, 2000,21(3): 238-242
LI Wen-lian. Development and Some Problems of Rare Earth-Organic-Polymer Electroluminescence[J]. Chinese Journal of Luminescence, 2000,21(3): 238-242
李文连. 稀土有机聚合物EL进展及其若干问题[J]. 发光学报, 2000,21(3): 238-242 DOI:
LI Wen-lian. Development and Some Problems of Rare Earth-Organic-Polymer Electroluminescence[J]. Chinese Journal of Luminescence, 2000,21(3): 238-242 DOI:
描述近年来稀土有机聚合物EL研究进展状况
如稀土Dy-和双核稀土配合物的白光发射EL器件的探索
高效窄带发射长寿命Eu-的红色EL特性研究以及新型Tm-蓝色EL器件的研究
新型Er-
Tm等红外发射EL器件的研究等等.结合国内外的研究
提出了有关稀土有机聚合物EL存在的若干问题
如大电流下工作易于老化的问题
发光亮度仍然不太高和驱动寿命短的问题等.
The developments in rare earth organic/polymer electroluminescence(EL)were described.Since the studies of RE-OEL were reported in 1990 by Kido et al
the study in this field has made a progress rapidly.In our group
the studies on organic/polymer EL-based on RE complexes
such as white electroluminescence based on Dy-complex and Eu-Tb double nuclear complexes
Eu-red electroluminescence with higher efficiency and long lifetime were carried out
and phenomena of electronic transition from
5
D
0
-
7
F
1
at 596nm of a new EL based on Eu-polymer complex were observed.The efficiency and durability of OEL devices based on Eu complex improved intensively
and the efficiency is about 4.6% which exceeded the theoretical limit
and the lifetime(the decaying time from 100cd/m
2
to 50cd/m
)is the highest so far.Either blue EL or IR EL emissions based on Tm-complexes could be observed when the ligand changed.On the other hand
new IR emission and
I-V
characteristics of OEL devices based on Yb
Er and Nb-complexes were studied too.Finally some problems existed in RE OEL were discussed in which the luminance and durability should be improved
and new RE-complexes with stable structure and good film forming properties must be carried out.The foreground for color displays is prospected.
稀土聚合物有机电致发光
rare earthpolymerorganic electroluminescence
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