ICCAS OpenIR
Zigzag molecules from pyrene-modified carbazole oligomers: Synthesis, characterization, and application in OLEDs
Zhao, Zujin1; Xu, Xinjun2; Wang, Hongbo1; Lu, Ping1; Yu, Gui2; Liu, Yunqi2
2008-01-18
Source PublicationJOURNAL OF ORGANIC CHEMISTRY
ISSN0022-3263
Volume73Issue:2Pages:594-602
AbstractA series of monodisperse, pyrene-modified oligocarbazoles were synthesized and fully characterized. Carbazoles were linked by ethynylene through the 3- and 6-positions, forming a zigzag molecular backbone and stable, size-independent absorption, and emission were observed from these oligomers in solutions because their conjugation length was confined. Oligomers with pyrene exhibited much higher fluorescence quantum yields than those of oligomers without it. Different positions of pyrene in the oligocarbazole main chain resulted in a remarkable change in absorption and emission spectra. Moreover, devices with four different architectures (types 1-4) based on these oligomers were fabricated and investigated. Pyrene-modified carbazole oligomers exhibited bifunctional properties (light-emitting and hole-transport). Moreover, these devices showed moderate performances; for example,the device based on Cz3PyCz3 presented an external quantum efficiency of 0.69% and a maximum brightness of 1782 cd/m(2) at 13.5 V, which indicated these oligomers were promising optoelectric materials.
DOI10.1021/jo702075r
Indexed BySCI ; IC
Language英语
WOS IDWOS:000252325200033
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:82[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/65648
Collection中国科学院化学研究所
Corresponding AuthorLu, Ping
Affiliation1.Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
2.Chinese Acad Sci, Inst Chem, Lab Organ Solids, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Zujin,Xu, Xinjun,Wang, Hongbo,et al. Zigzag molecules from pyrene-modified carbazole oligomers: Synthesis, characterization, and application in OLEDs[J]. JOURNAL OF ORGANIC CHEMISTRY,2008,73(2):594-602.
APA Zhao, Zujin,Xu, Xinjun,Wang, Hongbo,Lu, Ping,Yu, Gui,&Liu, Yunqi.(2008).Zigzag molecules from pyrene-modified carbazole oligomers: Synthesis, characterization, and application in OLEDs.JOURNAL OF ORGANIC CHEMISTRY,73(2),594-602.
MLA Zhao, Zujin,et al."Zigzag molecules from pyrene-modified carbazole oligomers: Synthesis, characterization, and application in OLEDs".JOURNAL OF ORGANIC CHEMISTRY 73.2(2008):594-602.
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