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Cathodoluminescence Emission-Spectra of ND-Doped CAF2

Can, N., Kazanci, N., Townsend, P.D., Chadwick, Alan V. (1994) Cathodoluminescence Emission-Spectra of ND-Doped CAF2. Physica Status Solidi A, 146 (2). pp. 843-852. ISSN 0031-8965. (doi:10.1002/pssa.2211460230) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:20416)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1002/pssa.2211460230

Abstract

Rare-earth doping of CaF2 results in material which exhibits significant cathodoluminescence (CL) signals. Therefore CL measurements made on CaF2:Nd are reported for the temperature range 50 to 300 K with different excitation modulation frequencies. Since annealing treatment can be used to modify the spectra, the effects of annealing treatments of CaF2:Nd have been examined. Dopant levels used in the present study are 1.0, 0.1, and 0.01% Nd. All dopant levels exhibited different CL spectra with a combination of broad emission bands from the CaF2 host and lines from the Nd dopants. Broad bands are centred near 340 and 645 nm. The intense emission lines at 360, 389, and 419 are assigned D-4(3/2) to I-4(j) (j = 9/2 and 11/2) and P-2(1/2) to I-4(9/2), respectively. Other transitions to Nd transitions from 4D from D-4(3/2), (4)G(9/2), (4)G(5/2) and (4)G(5/2), (2)G(7/2) to I-4(j) (j = 9/2 to 15/2) are found. The 340 nm band is associated with the intrinsic emission, self-trapped exciton (STE) emission, of CaF2. The temperature dependence of the intensity of the emission band is discussed. The intrinsic emission band intensities decrease with increasing Nd content.

Item Type: Article
DOI/Identification number: 10.1002/pssa.2211460230
Subjects: Q Science > Q Science (General)
Divisions: Divisions > Division of Arts and Humanities > School of Arts
Depositing User: P. Ogbuji
Date Deposited: 03 Jul 2009 19:22 UTC
Last Modified: 16 Nov 2021 09:58 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/20416 (The current URI for this page, for reference purposes)

University of Kent Author Information

Chadwick, Alan V..

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