ICCAS OpenIR
Effect of substitution of crown ether on the luminescence performances of PPV
Wang, S; Liu, YQ; Liu, HW; Yu, G; Xu, Y; Zhan, XW; Xi, F; Zhu, DB
2002-10-17
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume106Issue:41Pages:10618-10621
AbstractPhotoluminescence (PL) and electroluminescence (EL) properties of a polyp-phenylenevinylene) (PPV) derivative containing crown ether (C-PPV) were investigated. The PL quantum yield as high as 90% in solution and a temperature independence were observed. We infer that the surrounding side group, crown ether, effectively confines the excitons for radiative emission. The planar structure of crown ether also increases interchain interactions in the polymer and induces the formation of aggregation, which makes the PL spectrum of its solid film red-shifted. Through the Langmuir-Blodgett method, the evidence for aggregate formation is demonstrated: The polymer has been used in light emitting diodes. Using C-PPV as an emitting layer, the single layer device shows a low turn-on voltage (ca. 3 V), whereas the double layer device with a structure of ITO/C-PPV/tris(8-hydroxyquinolinato)aluminum (Alq(3))/Al shows a moderate EL performance with a brightness of 730 cd/m(2) and an external efficiency of 0.04%.
DOI10.1021/jp025981b
Indexed BySCI
Language英语
WOS IDWOS:000178548600015
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79098
Collection中国科学院化学研究所
Corresponding AuthorLiu, YQ
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Wang, S,Liu, YQ,Liu, HW,et al. Effect of substitution of crown ether on the luminescence performances of PPV[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2002,106(41):10618-10621.
APA Wang, S.,Liu, YQ.,Liu, HW.,Yu, G.,Xu, Y.,...&Zhu, DB.(2002).Effect of substitution of crown ether on the luminescence performances of PPV.JOURNAL OF PHYSICAL CHEMISTRY B,106(41),10618-10621.
MLA Wang, S,et al."Effect of substitution of crown ether on the luminescence performances of PPV".JOURNAL OF PHYSICAL CHEMISTRY B 106.41(2002):10618-10621.
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