ACTA

Sol-Gel Production and XPS Study of Sodium-Vanadium Oxide Bronze β-Phase

V. Bondarenka^{a, b}, H. Tvardauskas^a, M. Senulis^a, A. Pašiškevičius^a, S. Grebinskij^a, S. Mickevičius^a and I. Vitkutė^b
^aSemiconductor Physics Institute, Centre for Physical Sciences and Technology, A. Goštauto 11, LT-01108 Vilnius, Lithuania
^bVilnius Pedagogical University, Studentų 39, LT-08106 Vilnius, Lithuania

Full Text PDF

A β-phase of sodium-vanadium oxide bronze thin film has been synthesized by using sol-gel technology from V₂O₅ and Na₂SO₄. The powders of these materials in suitable proportion were dissolved in hydrogen peroxide and heated up to 350 K for the dissociation of peroxide complexes. The obtained gel was deposited onto a metallic substrate and dried in air at room temperature. The produced xerogel was heated up to 580 K in air atmosphere for the removal of water from xerogel. Starting materials, xerogel, as well as a final product were investigated by means of X-ray photoelectron spectroscopy method. X-ray photoelectron spectra testify that the chemical bonds of vanadium, oxygen and sodium in the bronze differ from the similar bonds in the starting materials. The sulphur presence was detected in the xerogel but not in the final bronze composition.

DOI: 10.12693/APhysPolA.119.135
PACS numbers: 68.47.Gh, 81.20.Fw, 82.80.Pv