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Hot luminescence of Mn2+in ZnS nanocrystals

Authors
Journal
Journal of Luminescence
0022-2313
Publisher
Elsevier
Publication Date
Volume
79
Issue
3
Identifiers
DOI: 10.1016/s0022-2313(98)00036-2
Keywords
  • Hot Luminescence
  • Nanocrystals
  • Zns : Mn2+

Abstract

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.

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