Crystallographic and Luminescence Characteristics of the Cu2MgSnSe4 Quaternary Compound and Cu2 – xMgSnSe4 (0 < x ≤ 0.15) Copper-Deficient Solid Solutions
Autor: | M. V. Chukichev, M. V. Gapanovich, I. N. Odin, O. Yu. Urkhanov, G. F. Novikov |
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Rok vydání: | 2021 |
Předmět: |
010302 applied physics
Materials science Magnesium General Chemical Engineering Metals and Alloys chemistry.chemical_element Cathodoluminescence 02 engineering and technology Quaternary compound engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Copper Spectral line Inorganic Chemistry Crystallography chemistry 0103 physical sciences Materials Chemistry engineering Kesterite 0210 nano-technology Luminescence Solid solution |
Zdroj: | Inorganic Materials. 57:1-7 |
ISSN: | 1608-3172 0020-1685 |
DOI: | 10.1134/s0020168521010118 |
Popis: | Crystallographic characteristics of the Cu2MgSnSe4 quaternary compound and Cu2 – xMgSnSe4 (0 < x ≤ 0.15) copper-deficient solid solutions have been determined for the first time. It has been shown that the band peaking at 1.39 eV in the 78-K cathodoluminescence spectrum of Cu2MgSnSe4 is most likely due to CuMg and MgCu antisite defects resulting from exchange of atoms between the copper and magnesium sublattices in the kesterite structure and that the spectra of Cu2 – xMgSnSe4 contain, in addition to the 1.39-eV band, a band peaking at 1.34 eV, which is due to Cu2+ · VCu defect associates. |
Databáze: | OpenAIRE |
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