Vibrational Emission from OH- Molecular Ions in KBr, Induced by Excitation of the Electronic States
A weak infrared luminescence (1.8–3.5 µm) has been observed from UV excited OH- impurity ions in KBr crystals. The luminescence signal disappears at temperatures above ~ 100 K. The analysis of the results and the correlation with the temperature dependence of the emission from the electronic transition indicates that the IR emission is due to the decay of the vibrational stretching mode of the ground electronic state.
KeywordsVibrational Level Radiative Decay Excited Electronic State Radiative Lifetime Relative Quantum Yield
Unable to display preview. Download preview PDF.
- 3.K. Rebane, P. Saari, Eesti NSV Tead. Akad. Toim. 17, 241 (1968).Google Scholar
- 4.For a review of much recent work on the properties of OH- in alkali halide crystals see: F. Luty, J. Phys., Suppl. C. 4, 28, 120 (1967).Google Scholar
- 5.H. Kapphan, F. Lüty (in press).Google Scholar
- A. A. Klochikhin et al. Ed. Wallis, Localized excitations in solids, New York, (1968), p. 62, and quoted references.Google Scholar
- 9.H. Köstlin, Sol. State Comm. 4 8l (1965)Google Scholar
- 12.V. Ya. Gamurar, Optics and Spec. 27, 524 (1969).Google Scholar