OPTICAL-PROPERTIES OF POTASSIUM RARE-EARTH ORTHOPHOSPHATES OF THE TYPE K3RE(PO4)2

Authors
FINKE B SCHWARZ L GURTLER P KRAAS M JOPPIEN M BECKER J
Citation
B. Finke et al., OPTICAL-PROPERTIES OF POTASSIUM RARE-EARTH ORTHOPHOSPHATES OF THE TYPE K3RE(PO4)2, Journal of luminescence, 60-1, 1994, pp. 975-978
Citations number
9
Categorie Soggetti
Optics
Journal title
Journal of luminescence → ACNP
ISSN journal
00222313
Volume
60-1
Year of publication
1994
Pages
975 - 978
Database
ISI
SICI code
0022-2313(1994)60-1:<975:OOPROO>2.0.ZU;2-M
Abstract
The luminescence of potassium rare earth orthophosphates, K3RE(PO4)2, RE = La, Ce, Tb, was studied at 298 and 10 K under UV and VUV excitati on. The band gaps determined by reflection and excitation spectra were found in the range 7.2-7.8 eV. The results are discussed. The observe d narrow excitation band at the VUV absorption edge is caused by an ex citation of PO43- anion molecules in the hosts.