Title

Energy Transfer Between Two Sites In Nd3+:Kliyf5

Abstract

High resolution spectroscopy of Nd3+ in Potassium Lithium Yttrium Fluoride (KLiYF5) at ≤80 K reveals two crystal-field sites which are equally populated independent of concentration. Site selective excitation of photoluminescence distinguishes each site's contribution to the spectra. The analysis of integrated line intensities reveals a bidirectional energy transfer between Nd3+ ions in different sites. A rapid increase in transfer rate with increasing Nd concentration is explained only if non-radiative transfer via exchange interaction contributes strongly to the effect. The observed relative decrease with increasing concentration of those emission lines which overlap strongly with opposite-site absorption lines implies that radiative transfer is also important. The energy transfer strongly depends on temperature (2 K-80 K) which indicates the participation of phonons.

Publication Date

1-1-1994

Publication Title

Materials Research Society Symposium Proceedings

Volume

329

Number of Pages

135-140

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

Socpus ID

0028094312 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028094312

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