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- Title
Luminescence centers in CaS:Er<sup>3+</sup>.
- Authors
Georgobiani, A. N.; Gruzintsev, A. N.; Nikiforova, T. V.
- Abstract
The diffuse reflectance, photoexcitation, and luminescence spectra and luminescence decay time of CaS:Er3+ have been measured at 77 and 300 K and different activator contents. The absorption and luminescence bands due to Er3+ centers and native defects have been revealed, and the radiative electronic transitions between excited and ground Er3+ states have been identified. The characteristic decay times of the Er3+2 H 11/2 and 4 F 9/2 states in CaS have been determined, and radiative energy transfer from excited states of native defects to erbium ions in CaS:Er3+ has been revealed.
- Subjects
LUMINESCENCE; AFTERGLOW (Physics); LIGHT sources; REFLECTANCE; OPTICAL reflection
- Publication
Inorganic Materials, 2006, Vol 42, Issue 7, p794
- ISSN
0020-1685
- Publication type
Article
- DOI
10.1134/S0020168506070181