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Microstructural and optical properties of spinel oxide MxCo2−xMnO4 (M=Ni, Zn or Cu; 0<x<1) thin films prepared by inorganic polycondensation and dip-coating methods

Le, Thi Ly and Guillemet-Fritsch, Sophie and Dufour, Pascal and Tenailleau, Christophe Microstructural and optical properties of spinel oxide MxCo2−xMnO4 (M=Ni, Zn or Cu; 0<x<1) thin films prepared by inorganic polycondensation and dip-coating methods. (2016) Thin Solid Films, 612. 14-21. ISSN 0040-6090

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Official URL: http://dx.doi.org/10.1016/j.tsf.2016.05.030

Abstract

Spinel oxide nanoparticles of MxCo2 − xMnO4 (M = Ni, Zn, Cu; 0 < x < 1) were prepared at 120 °C by the inorganic polycondensation method. Phase composition and microstructure of each sample powder thus obtained were characterized by X-ray diffraction, X-ray fluorescence and scanning electron microscopy. Nanoparticles are well crystallized and uniformly distributed in both shape and size. Colloidal dispersions were stabilized in a low cost and environmentally friendly solvent solution. Spinel oxide thin films were then deposited on glass substrates by using the dip-coating technique. Their optical properties were measured in the 300–1100 nm wavelength range. Thin films show extremely good absorbance in the ultra-violet and blue regions. The highest absorbance observed in the red region was for x = 0.15 in zinc. A smaller direct band gap was determined when a low amount of doping M element was introduced in the cobalt and manganese spinel oxide material.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at http://www.sciencedirect.com/science/article/pii/S004060901630181X
HAL Id:hal-01566926
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:21 Jul 2017 12:13

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