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Growing Crystals and Studying Structure and Electronic Properties of Cu2ZnGe(SхSe1-x)4 Compositions

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dc.contributor.author Bodnar, Ivan V.
dc.contributor.author Khoroshko, Vitaly V.
dc.contributor.author Yashchuk, Veronika A.
dc.contributor.author Gremenok, Valery F.
dc.contributor.author Kazi, Mohsin
dc.contributor.author Khandaker, Mayeen U.
dc.contributor.author Abid, Abdul G.
dc.contributor.author Zubar, Tatiana I.
dc.contributor.author Tishkevich, Daria I.
dc.contributor.author Trukhanov, Alex V.
dc.contributor.author Trukhanov, Sergei V.
dc.date.accessioned 2024-06-03T06:14:51Z
dc.date.available 2024-06-03T06:14:51Z
dc.date.issued 2023-11-18
dc.identifier.uri http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/12599
dc.description.abstract Single crystals of Cu2ZnGeSe4 and Cu2ZnGeS4 solid solutions were developed and successfully obtained using the chemical vapor transfer method, with iodine acting as a transporter. The structure, compositional dependences of lattice parameters, pycnometric and X-ray densities and microhardness were determined. The chemical composition determined by the X-ray microanalysis satisfactorily corresponds to the nominal one with a tolerance of ±5 %. The XRD analysis showed that all the obtained compounds and their solid solutions have unit cell described by tetragonal symmetry. The attice parameters were found to be а = 5.342 ± 0.005 Å, с = 10.51 ± 0.01 Å for the Сu2ZnGeS4 compound and а = 5.607 ± 0.005 Å, с = 11.04 ± 0.01 Å for the Cu2ZnGeSe4, respectively. Structural studies confirmed the validity of the Vegard's law in relation to the obtained samples. The pycnometric densities of ∼4.28 g/cm3 for the Cu2ZnGeS4 and ∼5.46 g/cm3 for the Cu2ZnGeSe4 were found to be slightly less than their X-ray densities of ∼4.32 g/cm3 and ∼5.52 g/cm3, respectively. The maximum microhardness of ∼398 kg/mm2 for these solid solutions corresponds to x = 0.60. The melt point of the solid solutions increases from ∼1180 °C for the Сu2ZnGeSe4 up to ∼1400 °C for the Сu2ZnGeS4. Based on X-ray fluorescence analysis and DTA data, the phase diagram of the Cu2ZnGeSe4-Cu2ZnGeS4 system was constructed. Analysis of the obtained diagram indicates its first type according to Rozbom's classification. en_US
dc.language.iso en_US en_US
dc.publisher Elsevier en_US
dc.subject Single crystals en_US
dc.subject Crystal fibers en_US
dc.subject Chemical vapor en_US
dc.subject Crystal structure en_US
dc.title Growing Crystals and Studying Structure and Electronic Properties of Cu2ZnGe(SхSe1-x)4 Compositions en_US
dc.type Article en_US


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