Synthesis and chain-length dependent properties of monodisperse oligo(9,9-di-n-octylfluorene-2,7-vinylene)s
文献类型：期刊论文
| 作者 | Liu, Qin; Liu, Wenming; Yao, Bing; Tian, Hongkun; Xie, Zhiyuan; Geng, Yanhou; Wang, Fosong |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2007-03-20 |
| 卷号 | 40期号:6页码:1851-1857 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma0628073 |
| 英文摘要 | A series of monodisperse oligo(9,9-di-n-octylfluorene-2,7-vinylene)s (OFVs) with fluorene units up to 11 has been synthesized following a divergent approach. Chain length was found to affect not only photophysical properties but also thermal properties. Absorption and photoluminescence spectra are red-shifted with increasing chain length. The effective conjugated length has been extrapolated to be as long as 19 fluorene vinylene units, indicative of a well-conjugated system. With the number of fluorene units > 5, the oligomers exhibit nematic mesomorphism. Glass transition temperature (T-g) and clearing point temperature (T-c) increase with increasing molecular length and with those of OFV11 up to 71 and 230 degrees C, respectively. The oligomers can form uniform films by solution casting for fabrication of light-emitting diodes. With a device structure of ITO/ PEDOT:PSS/OFV11/Ca/Al, a current efficiency of 0.8 cd.A(-1) at a brightness of 1300 cd.m(-2) along with a maximum brightness of 2690 cd.m(-2) have been realized. This performance is notably superior to that of the corresponding polymer. |
| 语种 | 英语 |
| WOS记录号 | WOS:000244855500015 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60907]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Geng, Yanhou |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Qin,Liu, Wenming,Yao, Bing,et al. Synthesis and chain-length dependent properties of monodisperse oligo(9,9-di-n-octylfluorene-2,7-vinylene)s[J]. MACROMOLECULES,2007,40(6):1851-1857. |
| APA | Liu, Qin.,Liu, Wenming.,Yao, Bing.,Tian, Hongkun.,Xie, Zhiyuan.,...&Wang, Fosong.(2007).Synthesis and chain-length dependent properties of monodisperse oligo(9,9-di-n-octylfluorene-2,7-vinylene)s.MACROMOLECULES,40(6),1851-1857. |
| MLA | Liu, Qin,et al."Synthesis and chain-length dependent properties of monodisperse oligo(9,9-di-n-octylfluorene-2,7-vinylene)s".MACROMOLECULES 40.6(2007):1851-1857. |
入库方式： OAI收割
来源：化学研究所
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