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Hole Traps in Rare Earth Doped MgS

Published online by Cambridge University Press:  28 February 2011

K. Chakrabarti ,
V.K. Mathur ,
M.D. Hill  and
R.J. Abbundi
K. Chakrabarti
Affiliation:
Naval Surface Warfare Center, White Oak, Silver Spring, MD 20903-5000
V.K. Mathur
Affiliation:
Naval Surface Warfare Center, White Oak, Silver Spring, MD 20903-5000
M.D. Hill
Affiliation:
Naval Surface Warfare Center, White Oak, Silver Spring, MD 20903-5000
R.J. Abbundi
Affiliation:
Naval Surface Warfare Center, White Oak, Silver Spring, MD 20903-5000
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Abstract

W report here the nature of the hole traps in singly doged (Ce3+, Tb3+ or Sm3+) and doubly doped (Ce3+ or Eu2+ and Sm3+) MgS. Ce3+ switches its role from electron trap to hole trap when Sm3+ is added to the host. Stimulated luminescence involving these hole trapsare presented. On codoping with monovalent Li+ or Na+ ions V type hole centers can be significantly reduced in MgS doped with the trivalent ions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 138: Symposium Q – Characterization of the Structure and Chemistry of Defects in Materials , 1988 , 167
Copyright
Copyright © Materials Research Society 1989

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