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【答案】应助回帖
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感谢参与，应助指数 +1
NS_13: 金币+30, ★★★★★最佳答案, 3Q 2014-04-29 08:20:19
oven1986: 检索EPI+1, 感谢应助！ 2014-04-29 09:46:39
SCI
文献信息
文献类型:Article
语种:English
入藏号: WOS:000333050400056
ISSN: 0957-4522
电子 ISSN: 1573-482X
EI
Accession number:
20141417533549
Title:
Synthesis and characterization of novel 2,7-carbazole derivatives for blue light-emitting diodes
Authors:
Li, Jingtong1; Liu, Ransheng1 Email author rsliu@163.com; Zhao, Zengdian1 Email author zdz1266@126.com; Zhou, Ziyan1
Author affiliation: 1 School of Chemical Engineering, Shandong University of Technology, Zibo 255049, China
Corresponding author:
Liu, R. (rsliu@163.com)
Source title:
Journal of Materials Science: Materials in Electronics
Abbreviated source title:
J Mater Sci Mater Electron
Volume:
25
Issue:
4
Issue date:
April 2014
Publication year:
2014
Pages:
1970-1975
Language:
English
ISSN:
09574522
E-ISSN:
1573482X
Document type:
Journal article (JA)
Publisher:
Springer New York LLC
Abstract:
Two 2,7-carbazole based low molecular weight derivatives, 9-hexyl-N 2,N 2,N 7,N 7-tetraphenyl-carbazole- 2,7-diamine (TPCA) and 9-hexyl-9H-9,2:7,9-tercarbazole (HTC), were synthesized by Buchwald and Ullmann coupling reactions, respectively. The optical, electrochemical and thermal properties of this two analogous small molecule hosts have been characterized. The HOMO level of TPCA and HTC were -5.25 and -5.29 eV indicating good hole-transporting properties. Both of the compounds emit deep blue light peaked at 410 and 428 nm in solid state. According to the measurement, the luminescence quantum yield of TPCA is 0.98, almost 1.7 times higher than that of HTC (0.59) in dilute THF solution. The geometrical and electronic properties of the compounds were studied using density functional theory calculations. The studies mentioned above indicate that both TPCA and HTC are suitable for active materials of blue light-emitting diodes. © 2014 Springer Science+Business Media New York.
Number of references:
17
Main heading:
Light emitting diodes
Controlled terms:
Chemical bonds - Electronic properties - Polycyclic aromatic hydrocarbons - Supercomputers
Uncontrolled terms:
2 , 7-carbazole derivatives - Blue light-emitting - Hole-transporting property - Low molecular weight - Luminescence quantum yields - Small molecules - Synthesis and characterizations - Ullmann coupling reaction
Classification code:
701.1 Electricity: Basic Concepts and Phenomena - 722.4 Digital Computers and Systems - 741.1 Light/Optics - 801.4 Physical Chemistry - 804.1 Organic Compounds
DOI: 10.1007/s10854-014-1831-4
Database:
Compendex
Compilation and indexing terms, © 2013 Elsevier Inc. |
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