Hot luminescence of Mn 2+ in ZnS nanocrystals
Abstract
Time resolved emission spectra of Mn 2+ in ZnS nanocrystals were studied. Two split-pair bands at high- and low-energy sides of the peak position of the conventional Mn 2+ emission band were observed at short delay times. They emerge gradually into the conventional emission band of Mn 2+. These two bands were assumed to be hot luminescence which comes from the vibronic transitions from the vibrational states of the excited state of Mn 2+ to its ground state. The population and energy relaxation times of hot electrons were deduced.
- Publication:
-
Journal of Luminescence
- Pub Date:
- January 1998
- DOI:
- 10.1016/S0022-2313(98)00036-2
- Bibcode:
- 1998JLum...79..191Y
- Keywords:
-
- Hot luminescence;
- Nanocrystals;
- ZnS : Mn <SUP loc="post">2+</SUP>