Low energy emission bands in a small molecular fluorene derivative for organic light-emitting diodes

被引：0
|
作者：
S. L. Lou
H.S. Yu
W. M. Ma
Y. Jiang
Q. Zhang
机构：
[1] State Key Laboratory of Electronic Thin Films and Integrated Devices,Department of Polymer Science
[2] School of Optoelectronic Information,undefined
[3] University of Electronic Science and Technology of China (UESTC),undefined
[4] School of Chemistry and Chemical Technology,undefined
[5] Shanghai Jiaotong University,undefined
来源：
The European Physical Journal D | 2008年 / 50卷
关键词：
42.70.Jk Polymers and organics; 78.66.Qn Polymers; organic compounds; 79.60.Fr Polymers; organic compounds; 81.65.Mq Oxidation;
D O I：
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学科分类号：
摘要：
6,6′-(9H-fluoren-9,9-diyl)bis(2,3-bis(9,9-dihexyl-9H-fluoren-2-yl)quinoxaline) (BFLBBFLYQ) was a novel small molecular fluorene material with fluorescence maxima at 450 nm in spin cast films. Compared to spin cast films, BFLBBFLYQ vacuum evaporated deposition films exhibited different photo-physical properties. The low energy emission bands from 530 to 570 nm were observed from the electroluminescence (EL) and photoluminescence (PL) spectra of BFLBBFLYQ films evaporated deposition in ultrahigh vacuum circumstance, and the origin of these emission features were investigated and discussed. Also, the emissive properties of BFLBBFLYQ spin cast films upon thermal annealing and under UV irradiation in air were characterized for the effect of thermal oxidization and photo-oxidization.
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页码：21 / 26
页数：5
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