Phenomenological kinetic equation for Mn luminescence in ZnS films
作者:
A. Geoffroy,
E. Bringuier,
期刊:
Journal of Applied Physics
(AIP Available online 1990)
卷期:
Volume 67,
issue 9
页码: 4276-4282
ISSN:0021-8979
年代: 1990
DOI:10.1063/1.344942
出版商: AIP
数据来源: AIP
摘要:
In this paper time‐resolved measurements of Mn2+luminescence in ZnS electroluminescent layers grown by atomic layer epitaxy are reported. The Mn concentration ranges from 0.03 to 1.4 mol %. The intensity of the luminescence versus time is cast in the form of a kinetic equation instead of an algebraic formula. This allows one to determine on a purely phenomenological basis the kinetic rates of mono‐ and bimolecular processes responsible for the relaxation. We show by a Laplace transform analysis technique that the long‐time behavior is not dominated by the lifetime of the single Mn2+ion in the host matrix. The influence of the electrical properties is evidenced on the second‐order kinetic rate. The methods used provide a general framework for investigating complex decay processes.
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