Physical, structural and topographical aspects of Zn1−xCoxSe thin films

In the present study, Zn1−xCoxSe (0≤x≤0.275) thin films were synthesized via a chemical route and characterized through the physical, compositional, structural and morphological properties. The change in colour appearance from ash-grey to charcoal-black suggested integration of Co2+ into ZnSe host l...

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Bibliographic Details
Published in:Materials science in semiconductor processing 2017-04, Vol.61, p.71-78
Main Authors: Pawar, S.T., Chavan, G.T., Prakshale, V.M., Sikora, A., Pawar, S.M., Kamble, S.S., Maldar, N.N., Deshmukh, L.P.
Format: Article
Language:English
Subjects:
AFM
Chemical synthesis
Colorimetry
MFM
Thin films
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Summary:In the present study, Zn1−xCoxSe (0≤x≤0.275) thin films were synthesized via a chemical route and characterized through the physical, compositional, structural and morphological properties. The change in colour appearance from ash-grey to charcoal-black suggested integration of Co2+ into ZnSe host lattice. Similar conclusions on the colour appearance were drawn from colorimetric studies. The hydrophobic nature of the as-obtained sample surface was revealed in wettability measurements. Zn2+, Co2+ and Se2- states of constituents in the thin films were found in the elemental analysis. Formation of ternary alloy was confirmed by shift in (111) X-ray diffraction peak. The surface topography was analysed by an atomic force microscopy (AFM). A variety of AFM parameters were determined to study the effect of Co2+ addition onto the surface topography. Magnetic mapping of the surface topography concluded the existence of magnetic domains of irregular sizes and shapes.
ISSN:1369-8001
1873-4081
DOI:10.1016/j.mssp.2016.12.042