The lifetimes of excited states and spectral intensities of DCEL in ZnS:Cu:Nd:Cl thin films
- 30 May 1981
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 14 (15), 2175-2184
- https://doi.org/10.1088/0022-3719/14/15/013
Abstract
Visible and infrared DCEL emission has been observed in thin films of ZnS:Cu:Nd:Cl prepared by co-evaporation in vacuum. The lifetimes of the excited states of the Nd3+ ion and the emission intensities at various wavelengths have been studied as a function of temperature and applied voltage. The energy distribution of the conduction band hot electrons taking part in the electroluminescence excitation process has been shown to follow a Boltzmann function and the mean energy of the hot electrons has been found to be 0.16 eV, a value which is consistent with the measured energy conversion efficiencies.Keywords
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