Chemically responsive luminescent switching in transparent flexible self-supporting [EuW10O36](9-)-agarose nanocomposite thin films

doi:10.1039/b917739f

CORC > 化学研究所 > 中国科学院化学研究所

	Chemically responsive luminescent switching in transparent flexible self-supporting [EuW10O36](9-)-agarose nanocomposite thin films
	Wang, Zhongliang 1,2; Zhang, Ruili 1,2; Ma, Ying 1; Peng, Aidong 1; Fu, Hongbing 1; Yao, Jiannian 1
刊名	JOURNAL OF MATERIALS CHEMISTRY
	2010
卷号	20 期号:2 页码:271-277
ISSN号	0959-9428
DOI	10.1039/b917739f
英文摘要	Europium-containing polyoxometalates (Eu-POMs) are widely used for the fabrication of hybrid inorganic-organic luminescent materials. A few efforts have been devoted to develop active Eu-POM-based luminescent sensors and switches. In this study, highly transparent flexible self-supporting decatungsteuropate(EuW10)-agarose thin films were successfully fabricated by a facile hydrogel casting technique. It was identified that strong interactions between agarose and EuW10 by hydrogen bonds at the hydroxyl sites and densely-packed 3D network structure of agarose in the gel state account for the homogenous distribution of EuW10 and good mechanical properties of the nanocomposite films. More importantly, the obtained thin films displayed strong red emission of Eu(III) ion, and the luminescence of these thin films was sensitive to the acid and base gases. When the thin films were exposed to HCl gas, their luminescence was sharply decreased, while the luminescence was recovered upon subsequently exposing the films to NH3 gas. Such process could be repeated many times and a portable switch based on these thin films was proposed.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000272842900009
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/70631]
专题	中国科学院化学研究所
通讯作者	Ma, Ying
作者单位	1.Chinese Acad Sci, Inst Chem, Key Lab Photochem, BNLMS, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhongliang,Zhang, Ruili,Ma, Ying,et al. Chemically responsive luminescent switching in transparent flexible self-supporting [EuW10O36](9-)-agarose nanocomposite thin films[J]. JOURNAL OF MATERIALS CHEMISTRY,2010,20(2):271-277.
APA	Wang, Zhongliang,Zhang, Ruili,Ma, Ying,Peng, Aidong,Fu, Hongbing,&Yao, Jiannian.(2010).Chemically responsive luminescent switching in transparent flexible self-supporting [EuW10O36](9-)-agarose nanocomposite thin films.JOURNAL OF MATERIALS CHEMISTRY,20(2),271-277.
MLA	Wang, Zhongliang,et al."Chemically responsive luminescent switching in transparent flexible self-supporting [EuW10O36](9-)-agarose nanocomposite thin films".JOURNAL OF MATERIALS CHEMISTRY 20.2(2010):271-277.