Physical properties of ZnxCd1-xS nanocrystalline layers synthesized by solution growth method

Nagamani, K., Reddy, Vasudeva Reddy Minnam, Lingappa, Yekula, Ramakrishna Reddy, Kotte and Miles, Robert (2012) Physical properties of ZnxCd1-xS nanocrystalline layers synthesized by solution growth method. International Journal of Optoelectronic Engineering, 2 (2). pp. 1-4. ISSN 2167-7301

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Abstract

In recent years, zinc cadmium sulphide (ZnxCd1-xS) alloy compounds have paid much attention in the fields of opto-electronics, particularly in photovoltaic devices because of its tunable energy gap and the lattice parameters. The energy band gap of ZnxCd1-xS is controlled by the change of Zn-composition in order to suit the material properties with that of absorber material in solar cells. In this paper, we report on the effect of Zn-composition on physical properties of ZnxCd1-xS thin films deposited on corning glass substrates by solution growth method. The layers were prepared for different ‘x’ values that vary in the range, 0 – 1.0 at. %. The as-grown layers were characterized using EDAX, XRD, SEM, and UV-Vis-NIR spectrophotometers. All the layers showed a strong (002) plane as the preferred orientation that exhibited the hexagonal crystal structure. The composition of the layers agrees approximately with that of the elements in the solution. The films showed an average optical transmittance of 72 % at a zinc composition of 0.75 with a band gap of 3.88 eV.

Item Type:	Article
Uncontrolled Keywords:	structure, optical properties
Subjects:	H100 General Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Sarah Howells
Date Deposited:	18 Jul 2012 14:22
Last Modified:	12 Oct 2019 19:07
URI:	http://nrl.northumbria.ac.uk/id/eprint/8181

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