Photoluminescence on Li-Codoped ZnS:Tm Phosphor
- 1 October 1992
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 31 (10R)
- https://doi.org/10.1143/jjap.31.3383
Abstract
Very strong sharp lines in luminescence of Tm3+ have been observed in Li-codoped ZnS:Tm phosphor. In particular, blue emission intensity was stronger as compared with that of infrared emission when the codoped Li concentration in ZnS:Tm was 0.1 at.%. As ZnS:Tm emits a broad band and very weak Tm3+ lines, the role of Li is proposed as follows: Li ions fill defects in the ZnS host, and hence excitation energy transfers from the ZnS host to Tm3+ very easily.Keywords
This publication has 3 references indexed in Scilit:
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- STRONG BLUE EMISSION IN ZnS:TmApplied Physics Letters, 1963