Mg-composition induced effects on the physical behavior of sprayed Zn1-xMgxO films

Ramakrishna Reddy, Kotte, Prathap, Pathi, Revathi, Naidu, Reddy, A. S. N. and Miles, Robert (2009) Mg-composition induced effects on the physical behavior of sprayed Zn1-xMgxO films. Thin Solid Films, 518 (4). pp. 1275-1278. ISSN 0040-6090

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Official URL: http://dx.doi.org/10.1016/j.tsf.2009.04.071

Abstract

Thin films of Zn 1- x Mg x O, with Mg compositions in the range, 0 < x < 0.4, have been deposited onto soda-lime glass substrates using chemical spray pyrolysis. The effects of altering the alloy composition on the chemical and physical properties of the layers were investigated using X-ray photoelectron spectroscopy, atomic force microscopy, Raman, optical and electrical measurements. The data shows systematic shifts in the properties of the layers with Mg-content. In particular, the optical absorption data showed that the influence of Mg-content on the energy gap of Zn 1- x Mg x O films is significant. Layers with x = 0.24 had an optical energy band gap, E g = 3.87 eV. The best layers produced had properties appropriate for application as Cd-free buffer layers in copper indium gallium selenide (CIGS) solar cells.

Item Type: Article
Uncontrolled Keywords: solar cells, pyrolysis
Subjects: J500 Materials Technology not otherwise specified
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: EPrints Services
Date Deposited: 28 Aug 2009 09:23
Last Modified: 31 Mar 2016 13:32
URI: http://nrl.northumbria.ac.uk/id/eprint/120

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