Blue polymer light-emitting diodes from poly(9,9-dihexylfluorene-alt-co-2,5-didecyloxy-para-phenylene)

被引:126
作者
Yu, WL [1 ]
Cao, Y
Pei, JA
Huang, W
Heeger, AJ
机构
[1] Natl Univ Singapore, Inst Mat Res & Engn, Singapore 119260, Singapore
[2] UNIAX Corp, Santa Barbara, CA 93117 USA
[3] Univ Calif Santa Barbara, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA
关键词
D O I
10.1063/1.125321
中图分类号
O59 [应用物理学];
学科分类号
摘要
Deep blue photoluminescence and electroluminescence are demonstrated from a soluble conjugated polymer, poly(9,9-dihexylfluorene-alt-co-2,5-didecyloxy-para-phenylene). The PL quantum efficiency is approximately 40%. Cyclic voltammetry measurements indicate that the highest occupied molecular orbital and lowest unoccupied molecular orbital energies are 5.66 and 2.62 eV below vacuum, respectively. Single-layer and multilayer light-emitting diodes emit deep blue light (peak at similar to 420 nm). (C) 1999 American Institute of Physics. [S0003-6951(99)04547-7].
引用
收藏
页码:3270 / 3272
页数:3
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