Accession Number:

ADA209821

Title:

The Use of Multiple Ion Exchange to Produce Energy Transfer in Beta Aluminas

Descriptive Note:

Technical rept. no. 19, Aug 1988-Jul 1989

Corporate Author:

CALIFORNIA UNIV LOS ANGELES DEPT OF MATERIALS SCIENCE AND ENGINEERING

Report Date:

1989-06-15

Pagination or Media Count:

10.0

Abstract:

The preparation of single crystals of Beta -alumina containing two trivalent lanthanide species is described. The use of eutectic melts enables the two rare earth species to be introduced during a single ion exchange process. Energy transfer in crystals containing Ce3Nd 3 and Ce3Tb 3 is shown. High transfer efficiencies were measured for crystals with low sensitizer-to- activator ion concentration ratios. Up-conversion processes were observed in crystals doped with Yb3 and Er 3 ions.

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE