Microstructural and optical properties of spinel oxide MxCo2−xMnO4 (M=Ni, Zn or Cu; 0
Autor: Thi Ly Le, Sophie Guillemet-Fritsch, Pascal Dufour, Christophe Tenailleau
Přispěvatelé: Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Thin Solid Films
Thin Solid Films, Elsevier, 2016, 612, pp.14-21. ⟨10.1016/j.tsf.2016.05.030⟩
ISSN: 0040-6090
DOI: 10.1016/j.tsf.2016.05.030⟩
Popis: International audience; 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.
Databáze: OpenAIRE