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A Study on the Thermochromic properties of Ti-doped Vanadium Dioxide
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  • Journal title : Clean Technology
  • Volume 21, Issue 4,  2015, pp.235-240
  • Publisher : The Korean Society of Clean Technology
  • DOI : 10.7464/ksct.2015.21.4.235
 Title & Authors
A Study on the Thermochromic properties of Ti-doped Vanadium Dioxide
Park, Jin Wook; Park, Seong-Soo; Ahn, Byung Hyun; Hong, Seong-Soo; Lee, Gun Dae;
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In this study, vanadium dioxide was doped with titanium (0~0.5 at %) to improve thermochromic properties. The titanium doped vanadium dioxide (Ti-VO2) particles were prepared via thermolysis process using vanadyl sulfate, ammonium bicarbonate and titianium chloride as precursors. The crystal structure, morphology, chemical bonding and thermochromic properties were investigated by using XRD, FE-SEM, XPS, DSC and UV-Vis-NIR spectroscopy. It was found that titanium was successfully doped into the crystal lattice of VO2 and the obtained Ti-VO2 particles have monoclinic structure. With increasing Ti concentration, the particle size and phase transition temperature of Ti-VO2 particles decreased and NIR switching efficiency increased.
Thermochromic;Titanium;Doping;Vanadium dioxide;
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