Characterization of novel sprayed Zn1−xMgxO films for photovoltaic application

Pathi Prathap, A. Suryanarayana Reddy, G. Ramachandra Reddy, Robert Miles, Kotte Ramakrishna Reddy

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    12 Citations (Scopus)


    Thin films of Zn1−xMgxO have been deposited using the chemical spray pyrolysis method. The variations in the chemical and physical properties of Zn1−xMgxO layers deposited with Mg-compositions in the range, 0≤x≤0.3, were investigated with respect to the deposition conditions. The Zn0.76Mg0.24O layers were used as buffer layers in thin film solar cells with the configuration, glass/Mo/CuIn0.8Ga0.2Se2/Zn0.76Mg0.24O/ZnO:Ga/Cu–Au using sprayed p-CuIn0.8Ga0.2Se2 (CIGS) as an absorber layer and sprayed n-ZnO:Ga as a window layer. The devices were characterized using current–voltage, capacitance–voltage and spectral response measurements. The best devices had a solar conversion efficiency of 3.9% with quantum efficiencies >70%. This is the first time such a device has been made in which all the layers were produced using spray pyrolysis.
    Original languageEnglish
    Pages (from-to)1434-1436
    JournalSolar Energy Materials and Solar Cells
    Issue number9
    Publication statusPublished - Sept 2010


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