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Synthesis and characterization of bipolar copolymers containing oxadiazole and carbazole pendant groups and their application to electroluminescent devices
Wang, Ping; Chai, Chunpeng; Yang, Qian; Wang, Fuzhi; Shen, Zhihao; Guo, Haiqing; Chen, Xiaofang; Fan, Xinghe; Zou, Dechun; Zhou, Qifeng
2008-08-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume46Issue:16Pages:5452-5460
AbstractA series of random copolymers POC10(Poly(2,5-bis[(5-decyloxy-phenyl)-1,3,4-oxadiazole]styrene))-co-poly(N-vinylcarbazole) (PVK) with different nvk content were synthesized through common radical polymerization and were incorporated into light emitting diodes as emitting layers. The structures and properties of the copolymers were characterized and evaluated by GPC, TGA, DSC, UV, PL, CV, and EL analyses. All the polymers enjoy high thermal stability. Cyclic voltammetry revealed that, with the incorporation of N-vinylcarbazole to the copolymer, these copolymers had high-lying HOMO energy values, which facilitated hole injection. PL peaks in the film show blue-shift compared with those in solutions and fluorescent quantum efficiency decreased with the nvk content increasing, which supported the efficient energy transfer from nvk units to the oxadiazole units. Single-layer LEDs with the configuration of ITO/PEDOT/PC10-nvk/Mg:Ag/Ag were fabricated, which emit a blue light around 440 and 490 nm with a maximum brightness of 675.3 cd/m(2) and luminous efficiency of 0.108 cd/A. Moreover, we fabricated electrophosphorescent device from bipolar transport copolymer PC10-nvk4 as host material and an orange-light-emitting iridium phosphor IrMDPP as guest. The maximum luminous efficiency of 0.548 cd/A was obtained. (C) 2008 Wiley Periodicals, Inc.
KeywordCopolymerization Functionalization Of Polymers Light-emitting Diodes Luminescence Phosphorescent Synthesis
DOI10.1002/pola.22865
Indexed BySCI
Language英语
WOS IDWOS:000258602700013
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63452
Collection中国科学院化学研究所
Corresponding AuthorFan, Xinghe
AffiliationPeking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys Minist Educ, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Wang, Ping,Chai, Chunpeng,Yang, Qian,et al. Synthesis and characterization of bipolar copolymers containing oxadiazole and carbazole pendant groups and their application to electroluminescent devices[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2008,46(16):5452-5460.
APA Wang, Ping.,Chai, Chunpeng.,Yang, Qian.,Wang, Fuzhi.,Shen, Zhihao.,...&Zhou, Qifeng.(2008).Synthesis and characterization of bipolar copolymers containing oxadiazole and carbazole pendant groups and their application to electroluminescent devices.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,46(16),5452-5460.
MLA Wang, Ping,et al."Synthesis and characterization of bipolar copolymers containing oxadiazole and carbazole pendant groups and their application to electroluminescent devices".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 46.16(2008):5452-5460.
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