Effective energy transfer and luminescence of LB films based on europium-substituted heteropolytungstate

被引:64
作者
Wang, J [1 ]
Wang, HS [1 ]
Fu, LS [1 ]
Liu, FY [1 ]
Zhang, HJ [1 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China
基金
中国国家自然科学基金;
关键词
LB films; luminescence; rare earth; europium-substituted heteropolytungstate;
D O I
10.1016/S0040-6090(02)00436-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The europium-substituted heteropolytungstate K13Eu(SiW11O39)(2) was successfully assembled into two lipids by LB technique for the first time. X-ray diffraction has shown a well defined lamellar for the LB films. The LB films have been characterized by fluorescence spectra and the characteristic luminescence behaviors were discussed. The ligand-metal charge transfer band could be observed in the spectra of the LB films, which could not be found in that of heteropolytungstate solid. The results of fluorescence spectra indicate the energy could be effectively transferred from ligands to the Eu3+ ions in the LB films and the luminescence efficiency was increased greatly. The influences of various lipids on the luminescence of polyoxometalates were investigated. The various interactions between monolayer and polyanions have different effect on the luminescence properties of europium-substituted heteropolytungstate. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:256 / 261
页数:6
相关论文
共 30 条
[1]   Present general status of understanding of heteropoly electrolytes and a tracing of some major highlights in the history of their elucidation [J].
Baker, LCW ;
Glick, DC .
CHEMICAL REVIEWS, 1998, 98 (01) :3-49
[2]  
Bekiari V, 1998, ADV MATER, V10, P1455, DOI 10.1002/(SICI)1521-4095(199812)10:17<1455::AID-ADMA1455>3.0.CO
[3]  
2-D
[4]   THE LUMINESCENCE OF SOME LANTHANIDE DECATUNGSTATES AND OTHER POLYTUNGSTATES [J].
BLASSE, G ;
DIRKSEN, GJ ;
ZONNEVIJLLE, F .
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1981, 43 (11) :2847-2853
[5]   QUENCHING OF EXCITED-STATES BY LANTHANIDE IONS AND CHELATES IN SOLUTION [J].
BUONOCORE, GE ;
LI, H ;
MARCINIAK, B .
COORDINATION CHEMISTRY REVIEWS, 1990, 99 :55-87
[6]   Toward new organic/inorganic superlattices: Keggin polyoxometalates in Langmuir and Langmuir-Blodgett films [J].
ClementeLeon, M ;
Agricole, B ;
Mingotaud, C ;
GomezGarcia, CJ ;
Coronado, E ;
Delhaes, P .
LANGMUIR, 1997, 13 (08) :2340-2347
[7]   Application of the Langmuir-Blodgett technique to polyoxometalates: Towards new magnetic films [J].
ClementeLeon, M ;
Mingotaud, C ;
Agricole, B ;
GomezGarcia, CJ ;
Coronado, E ;
Delhaes, P .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1997, 36 (10) :1114-1116
[8]  
DAVID KL, 1991, AM CHEM SOC, V113, P7209
[9]   Spectroscopic characterization of Eu3+-doped inorganic and alkoxide sol-gel derived fluorozirconate glass and zirconium fluoride gels [J].
Dejneka, M ;
Snitzer, E ;
Riman, RE .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1996, 202 (1-2) :23-34
[10]  
Huang YY, 1999, ADV MATER, V11, P627, DOI 10.1002/(SICI)1521-4095(199906)11:8<627::AID-ADMA627>3.0.CO