Published September 1980
| Version v1
Journal article
Thermoluminescence in single crystals of RbBr:OH- and RbBr:Ca2+
Description
Optical absorption, thermoluminescence glow and emission spectra of RbBr:Ca2+ and RbBr:OH- have been studied and analysed. It is observed that both Ca2+ and OH- ions enhance the F-centre concentration. Fsub(Z1) band in RbBr:Ca2+ appears at 1.55 eV. TL glow peak corresponding to Fsub(Z1) centre on analysis gives a trap depth of 0.84 eV. OH- ions in the crystal seem to act as TL 'killers'. Spectral distribution of emission under the glow peaks shows five bands around 1.5, 1.8, 2.1, 2.5 and 2.9 eV. Probable models of TL mechanism are suggested to explain the observed TL emission bands. (auth.)
Additional details
Publishing Information
- Journal Title
- Pramana
- Journal Volume
- 15
- Journal Issue
- 3
- Series
- Pramana.
- Journal Page Range
- 271-278
- ISSN
- 0304-4289
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 12593625
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ABSORPTION; CALCIUM IONS; CATIONS; EMISSION SPECTRA; GLOW CURVE; HYDROXYL RADICALS; MONOCRYSTALS; OPTICAL ACTIVITY; OPTICAL DEPTH CURVE; RUBIDIUM BROMIDES; THERMOLUMINESCENCE
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ATOMIC IONS; BROMIDES; BROMINE COMPOUNDS; CHARGED PARTICLES; CRYSTALS; DIAGRAMS; HALIDES; HALOGEN COMPOUNDS; INFORMATION; IONS; LUMINESCENCE; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADICALS; RUBIDIUM COMPOUNDS; SPECTRA
Optional Information
- Notes
- 22 refs., 6 figures.