Self-assembled 18-molybdophosphate/dioctadecyldimethylammonium composite superlattice thin films with photochromic properties

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	Self-assembled 18-molybdophosphate/dioctadecyldimethylammonium composite superlattice thin films with photochromic properties
	Zhang, TR ; Feng, W ; Lu, R ; Bao, CY ; Zhang, XT ; Li, TJ ; Zhao, YY ; Yao, JN
刊名	MATERIALS CHEMISTRY AND PHYSICS
	2003-02-03
卷号	78 期号:1 页码:116-121
关键词	18-molybdophosphoric Acid Photochromic Superlattice Self-assembly
ISSN号	0254-0584
英文摘要	A self-assembled layered superlattice composite film was fabricated by casting the chloroform solutions of ionic complex between dioctadecyldimethylammonium (DODA) and 18-molybdophosphate anion (P2Mo186-) onto CaF2, borosilicate glass, and quartz substrates. Infrared and UV spectra revealed that the Dawson structure characteristic of P2Mo186- was preserved in the composite film. A well-ordered superlattice structure was identified by X-ray diffraction (XRD). From XRD results and the cross-sectional area of DODA cation and P2Mo18 polyanion, a possible structural model was proposed. The P2Mo18/DODA film showed good photochromic properties. Irradiated with UV light, the transparent film changed from light yellow to blue. Then, bleaching occurred when the film was in contact with ambient air or O-2 in the dark. A possible photochromic mechanism was proposed according to electron spin resonance (ESR), Fourier transform infrared (FTIR) spectra, and UV-Vis spectra. (C) 2002 Elsevier Science B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000179262700021
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/80997]
专题	中国科学院化学研究所
通讯作者	Lu, R
作者单位	1.Jilin Univ, Dept Chem, 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
推荐引用方式 GB/T 7714	Zhang, TR,Feng, W,Lu, R,et al. Self-assembled 18-molybdophosphate/dioctadecyldimethylammonium composite superlattice thin films with photochromic properties[J]. MATERIALS CHEMISTRY AND PHYSICS,2003,78(1):116-121.
APA	Zhang, TR.,Feng, W.,Lu, R.,Bao, CY.,Zhang, XT.,...&Yao, JN.(2003).Self-assembled 18-molybdophosphate/dioctadecyldimethylammonium composite superlattice thin films with photochromic properties.MATERIALS CHEMISTRY AND PHYSICS,78(1),116-121.
MLA	Zhang, TR,et al."Self-assembled 18-molybdophosphate/dioctadecyldimethylammonium composite superlattice thin films with photochromic properties".MATERIALS CHEMISTRY AND PHYSICS 78.1(2003):116-121.