After calcining the film at 300 ☌ (30 min), it was found that it oxidized to V 2O 5, with SEM and atomic force microscopy (AFM) results showing that the film structure retained the hierarchic structure of the powder. VO 2 powder dispersion was used as functional ink for microextrusion printing of oxide film. ![]() ![]() Scanning electron microscopy (SEM) results for V 2O 5 powder showed that it consisted of nanosheets (~50 nm long and ~10 nm thick) assembled in slightly spherical hierarchic structures (diameter ~200 nm). Using thermal analysis, X-ray powder diffraction (XRD) and infra-red spectroscopy (IR), it was found that the resulting product was VO 2(B), which after calcining at 300 ☌ (1 h), oxidized to orthorhombic V 2O 5. ![]() The process of V 2O 5 oxide by the combination of sol-gel technique and hydrothermal treatment using heteroligand precursor was studied.
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