Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
465 0 |
SM ISO690:2012 GONCEARENCO, Evghenii, ROSTAS , Arpad Mihai, GALCA, Aurelian Catalin, KOLIBABA, Gleb, NEDEOGLO, Dumitru. Activation ability of Gd dopant in the ZnSe single crystals. In: Journal of Luminescence, 2021, vol. 238, p. 0. ISSN 0022-2313. DOI: https://doi.org/10.1016/j.jlumin.2021.118314 |
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Journal of Luminescence | |
Volumul 238 / 2021 / ISSN 0022-2313 | |
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DOI:https://doi.org/10.1016/j.jlumin.2021.118314 | |
Pag. 0-0 | |
Rezumat | |
Rare-earth elements are widely used as doping materials as they considerably change the semiconductor optical, electrical, magnetic and radiative properties. This work explores the influence of Gadolinium (Gd) as a dopant on the radiative, optical and magnetic properties of the Zinc Selenide (ZnSe). ZnSe single crystals were grown by the physical transport method and doped during the growth process using a GdSe source. A wide range of characterization equipment was employed to analyze the obtained ZnSe:Gd single crystals. Intracenter radiative transition of the Gd has not been detected. Gd ions activate the background impurities, causing radiative transitions from the conduction band to the Cu2+ level and intracenter transitions within V3+, V2+ and Cr2+ ions. At the same time, the edge band intensity is dependent on the dopant concentration. Optical transmittance decreases, but the position of the fundamental absorption band is unchanged. Single crystals have a zinc blende crystal structure, and Gd ions do not form complexes with native defects or background impurities. |
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Cuvinte-cheie EPR, Gadolinium, LIBS, Luminescence, Rare-earth, XRD, ZnSe |
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