Kinetics of the luminescence decay of Fe2+ impurity centres in polycrystalline ZnSe upon excitation by an electron beam

Autor:	S. A. Mironov, A. A. Gladilin, V. P. Kalinushkin, D. V. Savin, M. V. Chukichev, V. B. Ikonnikov, Pavel P Pashinin, A. V. Sidorin, E. M. Gavrishchuk, N. N. Il’ichev, S A Rodin, V V Tumorin, E. S. Gulyamova
Rok vydání:	2020
Předmět:	Materials science Auger effect Kinetics Statistical and Nonlinear Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials symbols.namesake Impurity Cathode ray symbols Crystallite Electrical and Electronic Engineering Atomic physics Luminescence Excitation
Zdroj:	Quantum Electronics. 50:730-733
ISSN:	1468-4799 1063-7818
DOI:	10.1070/qel17190
Popis:	The kinetics of the decay of the luminescence of Fe2+ ions is measured at nitrogen temperature in polycrystalline ZnSe excited by a short pulse of accelerated electrons. The time dependence of the luminescence intensity differs from the exponential one, observed upon excitation of luminescence by a short light pulse. The obtained nonexponential dependence is theoretically described. The explanation is based on the quenching effect of the excited state of the Fe2+ ion by free electrons of the volume charge of the current of accelerated electrons in the sample (Auger effect). It was shown that the relaxation of the volume charge after the electron-accelerating voltage is removed makes a significant contribution to the decay kinetics of the impurity luminescence.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ab371b910aec708d78044c93781e5439 https://doi.org/10.1070/qel17190 Zobrazit plný text záznamu