ICCAS OpenIR
A novel hyperbranched conjugated polymer for electroluminescence application
Duan, L; Qiu, Y; He, QG; Bai, FL; Wang, LD; Hong, XY
2001-10-22
Source PublicationSYNTHETIC METALS
ISSN0379-6779
Volume124Issue:2-3Pages:373-377
AbstractA novel hyperbranched conjugated polymer composed of 1,3,5-trivinylicbenzene cores and (2,5-dimethoxyl)-1,4-phenylenevinylene connecting units (HB2) was synthesized via Wittig reaction route. The resulting polymer has good solubility in common organic solvents due to its weak intermolecular interaction and low solvation energy. PL and EL properties of HB2 were inspected. In film, absorption of HB2 was slightly blue shifted from absorption in solution while PL emission was red shifted from that of solution. These marked differences suggested a large change in inter- and/or intra-molecular interaction from solution to solid film. Single layer light emitting diodes were fabricated utilizing HB2 as the emitting layer. Dispersing HB2 into a PVK matrix caused significant changes in the device performance. Bright blue emission > 800 cd/m(2) can be achieved at a bias of 24 V for the ITO/PVK:HB2 = 5:1/Ca/Al devices and efficiency of the polymer blend devices was an order of magnitude higher than that of the HB2 single layer devices. (C) 2001 Elsevier Science B.V. All rights reserved.
KeywordHyperbranched Conjugated Polymer Electroluminescence Photoluminescence
Indexed BySCI
Language英语
WOS IDWOS:000172608000018
PublisherELSEVIER SCIENCE SA
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77372
Collection中国科学院化学研究所
Corresponding AuthorQiu, Y
Affiliation1.Tsing Hua Univ, Dept Chem, Organ Optoelect Lab, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Inst Chem, Lab Organ Solids, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Duan, L,Qiu, Y,He, QG,et al. A novel hyperbranched conjugated polymer for electroluminescence application[J]. SYNTHETIC METALS,2001,124(2-3):373-377.
APA Duan, L,Qiu, Y,He, QG,Bai, FL,Wang, LD,&Hong, XY.(2001).A novel hyperbranched conjugated polymer for electroluminescence application.SYNTHETIC METALS,124(2-3),373-377.
MLA Duan, L,et al."A novel hyperbranched conjugated polymer for electroluminescence application".SYNTHETIC METALS 124.2-3(2001):373-377.
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