NATURE OF THE BLUE LUMINESCENCE BANDS IN PBWO4

Authors
SPRINGIS M TALE V TALE I
Citation
M. Springis et al., NATURE OF THE BLUE LUMINESCENCE BANDS IN PBWO4, Journal of luminescence, 72-4, 1997, pp. 784-785
Citations number
2
Categorie Soggetti
Optics
Journal title
Journal of luminescence → ACNP
ISSN journal
00222313
Volume
72-4
Year of publication
1997
Pages
784 - 785
Database
ISI
SICI code
0022-2313(1997)72-4:<784:NOTBLB>2.0.ZU;2-G
Abstract
The photoluminescence spectrum of PbWO4 is composed of blue and green bands, previously attributed to the regular WO4 group and to the defec t-related WO3 group, respectively, Untill now only green emission was observed in the thermostimulated luminescence (TSL) above 77 K. Invest igation of the TSL spectra starting from 20 K indicates that the blue band, being definitely present at least in the 28 K TSL peak, is also due to recombination emission at defect sites.