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1. 吉林大学, 集成光电子学国家重点实验室
2. 吉林大学, 超分子结构与材料教育部重点实验室
3. 吉林大学, 电子科学与工程学院光电子与微电子学系, 长春, 吉林, 130023
收稿:2004-08-22,
修回:2004-12-15,
纸质出版:2006-01-20
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程刚, 何凤, 赵毅, 马於光, 刘式墉. TBVB用作蓝光发光层的非掺杂有机电致蓝光和白光器件[J]. 发光学报, 2006,27(1): 85-90
CHENG Gang, HE Feng, ZHAO Yi, MA Yu-guang, LIU Shi-yong. Blue and White Non-doped Organic Light-emitting Devices Using 2,5,2',5'-tetrakis(4'-biphenylenevinyl)-biphenyl as Blue Light-emitting Layer[J]. Chinese Journal of Luminescence, 2006,27(1): 85-90
程刚, 何凤, 赵毅, 马於光, 刘式墉. TBVB用作蓝光发光层的非掺杂有机电致蓝光和白光器件[J]. 发光学报, 2006,27(1): 85-90 DOI:
CHENG Gang, HE Feng, ZHAO Yi, MA Yu-guang, LIU Shi-yong. Blue and White Non-doped Organic Light-emitting Devices Using 2,5,2',5'-tetrakis(4'-biphenylenevinyl)-biphenyl as Blue Light-emitting Layer[J]. Chinese Journal of Luminescence, 2006,27(1): 85-90 DOI:
利用一种来源于PPV的发蓝光的齐聚物材料2
5
2'
5'-tetra(4'-biphenylenevinyl)-biphenyl(TBVB)制作非掺杂的有机电致蓝光和白光器件。蓝光器件的结构为ITO/NPB/TBVB/Alq
3
/LiF/Al
其中TBVB用作发光层;白光器件的结构为ITO/NPB/TBVB/rubrene/Alq
3
/LiF/Al
其中TBVB与超薄层(平均“厚度”0.05~0.20nm)的Rubrene相结合用作发光层
二者分别发蓝光和黄光。在蓝光器件中
当TBVB的厚度为30nm时
器件发出色坐标为(0.20
0.26)的蓝光
其最大亮度和效率分别达到2154cd/m
2
和1.62cd/A。在白光器件中
可通过调节TBVB和Rubrene的厚度实现对器件发光色度的调节。当TBVB和Rubrene的厚度分别为10
0.15nm时
器件在亮度为4000cd/m
2
时发光色坐标为(0.33
0.34)
非常接近白光等能点
且随着电压的变化始终处于白光区。当电压为16V时该器件达到最高亮度4025cd/m
2
;当电压为6V时器件有最高的效率3.2cd/A。
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