ICCAS OpenIR
Polymer light-emitting electrochemical cell based on a block copolymer containing tri(ethylene oxide) spacers
Sun, QJ; Yang, CH; Wang, HQ; He, GF; Li, YF
2002-09-01
Source PublicationPOLYMERS FOR ADVANCED TECHNOLOGIES
ISSN1042-7147
Volume13Issue:9Pages:663-669
AbstractWe presented the optical properties of a novel block copolymer containing chromophores, 2,5-dimethoxy-1,4-di(alpha-(2-naphthalene vinylene)benzene (MDNVB) and spacers, tri(ethylene oxide) (TEO). The intrachain and interchain excitations due to the molecular aggregation arc responsible for the significant bathochromic shift in the photoluminescence (PL) spectrum when going from the solution to the thin film. With a certain content of the polymer electrolyte, blue-green light-emitting electrochemical cell based on this block copolymer was demonstrated with the turn-on voltage of 2.5 V, the maximum electroluminescence (EL) efficiency of 1.2 cd/A, and the d.c. response time of less than 5 sec, indicating strongly that an improved morphology of the active layer is formed because of the effective TEO-PEO interaction. Lowering the content of the polymer electrolyte results in a higher turn-on voltage and smaller injection current, increasing the content leads to a considerable microscopic leaking current and lower EL efficiency of the device. Copyright (C) 2002 John Wiley Sons, Ltd.
KeywordLuminescence Light-emitting Electrochemical Cell Block Copolymers Electrolyte Concentration Thin Films
DOI10.1002/pat.328
Indexed BySCI
Language英语
WOS IDWOS:000178362500007
PublisherJOHN WILEY & SONS LTD
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78126
Collection中国科学院化学研究所
Corresponding AuthorLi, YF
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
2.Beijing Univ Chem Technol, Sch Mat Sci & Engn, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Sun, QJ,Yang, CH,Wang, HQ,et al. Polymer light-emitting electrochemical cell based on a block copolymer containing tri(ethylene oxide) spacers[J]. POLYMERS FOR ADVANCED TECHNOLOGIES,2002,13(9):663-669.
APA Sun, QJ,Yang, CH,Wang, HQ,He, GF,&Li, YF.(2002).Polymer light-emitting electrochemical cell based on a block copolymer containing tri(ethylene oxide) spacers.POLYMERS FOR ADVANCED TECHNOLOGIES,13(9),663-669.
MLA Sun, QJ,et al."Polymer light-emitting electrochemical cell based on a block copolymer containing tri(ethylene oxide) spacers".POLYMERS FOR ADVANCED TECHNOLOGIES 13.9(2002):663-669.
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