Carbazole-modified blue light-emitting copolymers with the backbones integrated by diphenyloxadiazole, fluorene, and triphenylamine
文献类型：期刊论文
| 作者 | Lin Y ; Chen Y ; Ye TL ; Ma DG ; Li YX |
| 刊名 | european polymer journal
 |
| 出版日期 | 2012 |
| 卷号 | 48期号:2页码:416-424 |
| 关键词 | DIODES POLYFLUORENE DERIVATIVES OXADIAZOLE POLYMER COLOR ELECTROLUMINESCENCE PROGRESS UNITS HOLE |
| ISSN号 | 0014-3057 |
| 通讯作者 | chen y |
| 中文摘要 | two new blue light-emitting polymers, poly{[2,5-bis(4-phenylene)-1,3,4-oxadiazole]-[9,9-dihexylfluorene-2,7-diyl]-[n-(4-(9h-carbazol-9-yl)phenyl)-n,n-bis(p-phenylene)aniline]) (pofpa) and poly{[2,5-bis(4-phenylene)-1,3,4-oxadiazole]-[9,9-dihexylfluorene-2,7-diyl] -[4-(3,6-(di-9h-carbazol-9-yl)-9h-carbazol-9-yl)-n,n-bis(p-phenylene)-aniline]} (pofcpa), were synthesized by suzuki coupling reactions. by gpc analysis against a linear polystyrene standard pofpa and pofcpa were found to have m-n of 1.68 x 10(4) and 3.70 x 10(3), respectively. in contrast to pofpa, the main absorption peak of pofcpa in dilute toluene solution was blue-shifted by delta lambda = 26 nm owing to its backbone of relatively shorter pi-conjugation length and more carbazole units in side chain. the absolute fluorescence quantum yield (phi(f)) of pofcpa in dilute toluene solution was determined as 73%, much higher than that of pofpa (phi(f) approximate to 58.9%) measured under the same conditions. an electroluminescence device based on pofcpa displays a stable blue emission having color coordinates of (0.15, 0.20), a maximum brightness of 4762 cd/m(2), and a maximum current efficiency of 1.79 cd/a. by using this polymer as the host material doped with 1 wt.% 4,4 '-bis[2-(4-(n,n-diphenylamino)phenyl)vinyl]biphenyl, the achieved highest brightness, maximum current efficiency and maximum power efficiency are 13,613 cd/m(2), 3.38 cd/a, and1.84 lm/w. respectively. (c) 2011 elsevier ltd. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000300380300017 |
| 公开日期 | 2013-06-08 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48348]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Lin Y,Chen Y,Ye TL,et al. Carbazole-modified blue light-emitting copolymers with the backbones integrated by diphenyloxadiazole, fluorene, and triphenylamine[J]. european polymer journal,2012,48(2):416-424. |
| APA | Lin Y,Chen Y,Ye TL,Ma DG,&Li YX.(2012).Carbazole-modified blue light-emitting copolymers with the backbones integrated by diphenyloxadiazole, fluorene, and triphenylamine.european polymer journal,48(2),416-424. |
| MLA | Lin Y,et al."Carbazole-modified blue light-emitting copolymers with the backbones integrated by diphenyloxadiazole, fluorene, and triphenylamine".european polymer journal 48.2(2012):416-424. |
入库方式： OAI收割
来源：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。