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Updated: Aug 11, 2026

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
Published on: November 15, 2016
[Photoelectron time-resolved spectrum and phosphor spectrum of luminescent material ZnO by microwave absorption
Guo-yi Dong1, Jun-hong Dou, Shi-yan Ge
1College of Physics Science and Technology, Hebei University, Baoding 071002, China.
Abstract:
The process of decay of photo-generated electrons in the conduction band of ZnO:Zn and ZnO powder materials after excitation with a ultra-short pulse laser has been investigated in this paper by microwave absorption method. The excitation and emission spectra of ZnO:Zn were measured at room temperature. It was measured that the lifetime o photoelectrons in the materials ZnOand ZnO:Zn are 64 ns and 336 ns respectively. It is believed that the increase of the lifetime in the material of ZnO:Zn is due to the prolong of relaxation time caused by the defect structure in the material.
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