ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Single phase monoclinic vanadium dioxide (VO2) films were successfully grown onsapphire (001) substrate by means of an inductively coupled plasma (ICP)-assisted sputtering withan internal coil. In x-ray diffraction patterns, we observed reflections originating from monoclinicVO2 with a main peak at 2θ = 39.77° corresponding to VO2 (020) for films on sapphire (001)substrates. The VO2 films exhibited metal-insulater transition (MIT) at temperatures around 65°Cwith three orders of change in resistivity. A simple device of VO2 film on sapphire (001) substratehaving aluminum electrodes as ohmic contacts with gap separation of 1.0 mm showed currentjump at an applied voltage of 48 V. The current jumped from 7 mA to 200 mA which was a limitedvalue of voltage source
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.124-126.703.pdf
Permalink