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Preparation, structures and photoluminescent enhancement effect of PbWO4–TiO2 composite nanofilms

Authors :
Run-Ping, Jia
Guo-Xin, Zhang
Qing-Sheng, Wu
Source :
Journal of Nanoparticle Research; December 2006, Vol. 8 Issue: 6 p1059-1064, 6p
Publication Year :
2006

Abstract

Abstract: A novel route for preparing PbWO<subscript>4</subscript>–TiO<subscript>2</subscript> nanofilms on a glass substrate is firstly proposed. The collodion is used as a dispersant and film-forming agent. The nanofilms are characterized through SEM, XRD, TG/DTA, PL and IR, respectively. The results of XRD indicate PbWO<subscript>4</subscript> particles with tetragonal scheelite structure and TiO<subscript>2</subscript> particles with Anatase phase, and SEM shows they are well dispersed in the substrate. Compared with nanoparticles, when TiO<subscript>2</subscript> nanoparticles are added in 5% ratio, the PL intensities at 395 nm of PbWO<subscript>4</subscript> nanofilms are enhanced obviously. IR spectrum reveals a large absorption band between 750 and 870 cm<superscript>−1</superscript>, which is the W–O stretching vibration in WO<subscript>4</subscript> tetrahedron.

Details

Language :
English
ISSN :
13880764 and 1572896X
Volume :
8
Issue :
6
Database :
Supplemental Index
Journal :
Journal of Nanoparticle Research
Publication Type :
Periodical
Accession number :
ejs10529318
Full Text :
https://doi.org/10.1007/s11051-005-9067-0