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Photochromic polyoxotungstoeuropate K-12[EuP5W30O110]/polyvinylpyrrolidone nanocomposite films
Zhang, TR; Lu, R; Liu, XL; Zhao, YY; Li, TJ; Yao, JN
2003-05-01
Source PublicationJOURNAL OF SOLID STATE CHEMISTRY
ISSN0022-4596
Volume172Issue:2Pages:458-463
AbstractA novel photochromic nanocomposite film containing polyoxotungstoeuropate K-12[EuP5W30O110] entrapped in polyvinylpyrrolidone has been prepared through a spin-on coating technique. Thus-obtained amorphous nanocomposite film was characterized by IR spectra, UV-vis absorption spectra, XRD, SEM, TG-DTA, and ESR. Results show that polyoxotungstoeuropate interacts with polyvinylpyrrolidone strongly and disperses homogeneously in the matrix. The composite film exhibits good photochromic properties. When irradiated with UV light, the transparent film changes from colorless to blue. Then, bleaching occurs when the film is in contact with ambient air or O-2 in the dark. The photochromism of the composite film is due to charge transfer by reduction of polyoxotungstoeuropate and oxidation of polyvinylpyrrolidone. (C) 2003 Elsevier Science (USA). All rights reserved.
KeywordNanocomposite Photochromic Polyoxotungstoeuropate Charge-transfer
DOI10.1016/S0022-4596(03)00036-7
Indexed BySCI
Language英语
WOS IDWOS:000183360200027
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80062
Collection中国科学院化学研究所
Corresponding AuthorLu, R
Affiliation1.Jilin Univ, Dept Chem, Fac Sci, Changchun 130023, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhang, TR,Lu, R,Liu, XL,et al. Photochromic polyoxotungstoeuropate K-12[EuP5W30O110]/polyvinylpyrrolidone nanocomposite films[J]. JOURNAL OF SOLID STATE CHEMISTRY,2003,172(2):458-463.
APA Zhang, TR,Lu, R,Liu, XL,Zhao, YY,Li, TJ,&Yao, JN.(2003).Photochromic polyoxotungstoeuropate K-12[EuP5W30O110]/polyvinylpyrrolidone nanocomposite films.JOURNAL OF SOLID STATE CHEMISTRY,172(2),458-463.
MLA Zhang, TR,et al."Photochromic polyoxotungstoeuropate K-12[EuP5W30O110]/polyvinylpyrrolidone nanocomposite films".JOURNAL OF SOLID STATE CHEMISTRY 172.2(2003):458-463.
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