Synthesis and characterization of new carbazole/fluorene-based derivatives for blue-light-emitting devices
文献类型:期刊论文
作者 | Grigalevicius, Saulius; Ma, Liang; Xie, Zhi-Yuan; Scherf, Ullrich |
刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
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出版日期 | 2006-10-15 |
卷号 | 44期号:20页码:5987-5994 |
关键词 | Amorphous Material Copolymer Fluorescence Light Emitting Diode |
ISSN号 | 0887-624X |
DOI | 10.1002/pola.21660 |
英文摘要 | 2,7-Bis(9-ethylcarbazol-3-yl)-9,9-di(2-ethylhexyl)fluorene and a segmented copolymer composed of the same chromophores alternated with hexamethylene fragments were synthesized. The obtained materials possess good solubility in common organic solvents, high thermal stability with 1% weight loss temperature of 350-370 degrees C, and suitable glass transition temperatures. Both derivatives show blue fluorescence in dilute solutions as well as in solid state, demonstrating that excimers are not formed in the thin films. The fluorescence spectra of the materials do not show any peaks in the long-wavelength region even after annealing at 200 degrees C in air. An organic LED with the configuration of ITO/copolymer/Al generates blue electroluminescence with the maximum peak at 416 nm, rather low turn-on voltage (4.0 V), and brightness of about 400 cd/m(2). The heterostructure device based on model derivative emitted stable blue light with low operation voltage (100 cd/m(2) at similar to 11 V) and demonstrated luminescence efficiency of 0.8 cd/A. (c) 2006 Wiley Periodicals, Inc. |
语种 | 英语 |
WOS记录号 | WOS:000241085200016 |
出版者 | JOHN WILEY & SONS INC |
源URL | [http://ir.iccas.ac.cn/handle/121111/58647] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Grigalevicius, Saulius |
作者单位 | 1.Kaunas Univ Technol, Dept Organ Technol, LT-50254 Kaunas, Lithuania 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Univ Wuppertal, D-42119 Wuppertal, Germany |
推荐引用方式 GB/T 7714 | Grigalevicius, Saulius,Ma, Liang,Xie, Zhi-Yuan,et al. Synthesis and characterization of new carbazole/fluorene-based derivatives for blue-light-emitting devices[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2006,44(20):5987-5994. |
APA | Grigalevicius, Saulius,Ma, Liang,Xie, Zhi-Yuan,&Scherf, Ullrich.(2006).Synthesis and characterization of new carbazole/fluorene-based derivatives for blue-light-emitting devices.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,44(20),5987-5994. |
MLA | Grigalevicius, Saulius,et al."Synthesis and characterization of new carbazole/fluorene-based derivatives for blue-light-emitting devices".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 44.20(2006):5987-5994. |
入库方式: OAI收割
来源:化学研究所
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