A First Approach to White Organic Electroluminescence Device from a Single Rod-Coil Poly[thiophene-block-(N-vinylcarbazole)] Diblock Copolymer

被引:25
作者
Heo, Mihee [1 ]
Kim, Jonggi [1 ]
Kim, Jin Young [1 ]
Yang, Changduk [1 ]
机构
[1] UNIST, Interdisciplinary Sch Green Energy, Ulsan 689798, South Korea
基金
新加坡国家研究基金会;
关键词
diblock copolymers; Forster-type energy transfer; morphology; poly(3-hexylthiophene) (P3HT); poly(N-vinylcarbazole) (PVK); white organic light-emitting diodes (WOLEDs); LIGHT-EMITTING-DIODES; NONRADIATIVE ENERGY-TRANSFER; BLOCK-COPOLYMERS; NMR-SPECTRA; EFFICIENT; EMISSION; POLYMER; GREEN;
D O I
10.1002/marc.201000398
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A rod-coil block copolymer consisting of poly(3-hexylthiophene) (P3HT) and poly(N-vinylcarbazole) (PVK) (P3HT-b-PVK) in a single molecular architecture is prepared as the first example for WOLEDs. By obtaining the phase separated domains in thin film of the resulting block copolymer, it is possible to suppress energy transfer from PVK as wide bandgap units to P3HT as low bandgap blocks, yielding dual emissions for white electroluminescence with CIE coordination of (0.34, 0.33).
引用
收藏
页码:2047 / 2052
页数:6
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