Reversible phase transition in vanadium oxide films sputtered on metal substrates
PHILOSOPHICAL MAGAZINE LETTERS(2016)
摘要
Vanadium oxide films, deposited on aluminium (Al), titanium (Ti) and tantalum (Ta) metal substrates by pulsed RF magnetron sputtering at a working pressure of 1.5x10(-2)mbar at room temperature are found to display mixed crystalline vanadium oxide phases viz., VO2, V2O3, V2O5. The films have been characterized by field-emission scanning electron microscopy, X-ray diffraction, differential scanning calorimetry (DSC) and X-ray photoelectron spectroscopy, and their thermo-optical and electrical properties have been investigated. Studies of the deposited films by DSC have revealed a reversible-phase transition found in the temperature range of 45-49 degrees C.
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关键词
Vanadium oxide,thin films,reversible-phase transition,XRD,XPS,thermo-optical properties,DSC
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