Excimer and electromer suppression of tetraphenylsilane-based blue-light-emitting polymers

被引：0
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作者：
Lee, Rong-Ho [1 ]
Wang, Ying-Yu [1 ]
机构：
[1] Department of Chemical Engineering, National Yunlin University of Science and Technology, Yunlin 640, Taiwan
来源：
Journal of Applied Polymer Science | 2008年 / 107卷 / 06期
关键词：
Excimer and electromer suppression of tetraphenylsilane-derivative-based blue polymer light-emitting devices (PLEDs) was investigated. Tetraphenylsilane with a rigid bulky structure certainly but not completely suppressed excimer formation among polymer-chain segments. A poor solvent; toluene; resulted in excimer formation in the solid film during the spin-coating process; which could not be suppressed by the incorporation of a bulky moiety onto the polymer backbone. In addition; electromers or electroplexes formed by the strong interaction between the oxadiazole and diphenyl(4-tolyl)-amine groups could not be prevented by the tetraphenylsilane moiety. The influences of the bulky moiety; bipolar unit; and device fabrication conditions on the suppression of excimers or electromers in PLEDs are discussed in detail. © 2007 Wiley Periodicals; Inc;
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页码：3459 / 3468
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