PHOTOLUMINESCENCE OF EU2+ AND EU3+ CENTERS IN CASEU,NA PHOSPHORS

Authors
YAMASHITA N FUKUMOTO S IBUKI S OHNISHI H
Citation
N. Yamashita et al., PHOTOLUMINESCENCE OF EU2+ AND EU3+ CENTERS IN CASEU,NA PHOSPHORS, JPN J A P 1, 32(7), 1993, pp. 3135-3139
Citations number
21
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
32
Issue
7
Year of publication
1993
Pages
3135 - 3139
Database
ISI
SICI code
Abstract
Photoluminescence and excitation spectra, luminescence decay curves, a nd time-resolved photoluminescence spectra are observed for CaS:Eu,Na powder phosphors at various temperatures between 10 and 297 K. The det ailed spectra of the Eu3+ center in CaS are observed for the first tim e. The emission lines due to the Eu3+ center are classified into two g roups originating from centers A and B. The A center is attributed to the isolated Eu3+ center, whereas the B center, to the paired Eu3+-Eu2 + center.