An investigation on structural and optical properties of Zn1-xMgxS thin films deposited by RF magnetron co-sputtering technique
In this paper, Zn1-xMgxS thin films were co-sputtered on glass substrates using ZnS and MgS binary target materials under various applied RF power. The compositional ratio of Zn1-xMgxS films was varied by changing the RF power at an elevated temperature of 200 �C. The structural and optical properti...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
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MDPI AG
2023
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| Summary: | In this paper, Zn1-xMgxS thin films were co-sputtered on glass substrates using ZnS and MgS binary target materials under various applied RF power. The compositional ratio of Zn1-xMgxS films was varied by changing the RF power at an elevated temperature of 200 �C. The structural and optical properties were studied in detail. The structural analysis shows that the co-sputtered Zn1-xMgxS thin films have a cubic phase with preferred orientation along the (111) plane. The lattice constant and ionicity suggest the presence of a zincblende structure in Zn1-xMgxS thin films. Zn1-xMgxS thin films have transmittance over 76%. The extrapolation of optical characteristics indicates that direct bandgaps, ranging from 4.39 to 3.25 eV, have been achieved for the grown Zn1-xMgxS films, which are desirable for buffer or window layers of thin film photovoltaics. � 2020 by the authors. |
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