Oligofluorene-based push-pull type functional materials for blue light-emitting diodes
文献类型：期刊论文
| 作者 | Lin Y ; Chen Y ; Ye TL ; Chen ZK ; Dai YF ; Ma DG |
| 刊名 | journal of photochemistry and photobiology a-chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 230期号:1页码:55-64 |
| 关键词 | FIELD-EFFECT TRANSISTORS HIGHLY EFFICIENT CONJUGATED POLYMERS ELECTROLUMINESCENT DEVICES OPTOELECTRONIC PROPERTIES BUILDING-BLOCKS FLUORENE DERIVATIVES OLIGOMERS TRIPHENYLAMINE |
| ISSN号 | 1010-6030 |
| 通讯作者 | chen y |
| 中文摘要 | a series of new oligofluorene-based push-pull type blue light-emitting functional materials, namely, 2-(9h-carbazole-9-yl)-7-(4-cyanophenyl)-9,9-dihexylfluorene (f1), 7-(9h-carbazol-9-yl)-7'-(4-cyanophenyl)-2,2'-bi(9,9-dihexylfluorene) (f2), 7-(9h-carbazole-9-yl)-7 ''-(4-cyanophenyl)-2,2':7',2 ''-ter(9,9-dihexylfluorene) (f3), and 7-(9h-carbazole-9-yl)-7'''-(4-cyanophenyl)-2,2':7',2 '':7 '',2'''-quarter(9,9-dihexylfluorene) (f4) were synthesized and characterized. their onset decomposition temperatures for the thermal bond cleavage and the glass-transition temperatures were in general increased with increasing number of fluorene units. in dilute toluene solution, the oligofluorenes exhibited main absorption peaks in the range of 343-370 nm, photoluminescence maxima from 403 to 410 nm, and absolute quantum yields (phi(pl)s) of higher than 87%. in contrast, the absorption spectra of these compounds in the thin films had no large differences from those in the solutions except for the slight peak red-shifts (2-8 nm). the main emission maxima of f1, f2, and f3 in the thin films were located at 418-420 nm, while the main emission of f4 was found to be shifted to 446 nm, followed by a shoulder peak at 421 nm. the phi(pl)s of these thin films were estimated in the range of 59.2-68.7%. the existence of the electron-pull and -push end groups could effectively tune the energy levels of the oligofluorenes. by using the organic light emitting device (oled) configuration of ito/pedot:pss/oligofluorenes/tpbi/lif/al by solution-process, f4 displayed the best performance: the lowest turn-on voltage (4.1 v) and highest maximum luminance (2180 cd/m(2)) with maximal current efficiency of 1.17 cd/a. when f4 was fabricated into the optimized device of ito/moo3/npb/cbp:f4(1:4)/tpbi/li f/al by vapor deposition, highest brightness of 5135 cd/m(2) and current efficiency of 1.76 cd/a were achieved with the commission internationale de l'eclairage (cie) coordinates of (0.16, 0.09). (c) 2011 elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000301316800008 |
| 公开日期 | 2013-06-08 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48320]  |
| 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. Oligofluorene-based push-pull type functional materials for blue light-emitting diodes[J]. journal of photochemistry and photobiology a-chemistry,2012,230(1):55-64. |
| APA | Lin Y,Chen Y,Ye TL,Chen ZK,Dai YF,&Ma DG.(2012).Oligofluorene-based push-pull type functional materials for blue light-emitting diodes.journal of photochemistry and photobiology a-chemistry,230(1),55-64. |
| MLA | Lin Y,et al."Oligofluorene-based push-pull type functional materials for blue light-emitting diodes".journal of photochemistry and photobiology a-chemistry 230.1(2012):55-64. |
入库方式： OAI收割
来源：长春应用化学研究所
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