| 초록 |
Vanadium dioxide(VO2) powder was synthesized from vanadium oxide(V2O5) and oxalic acid dihydrate by the control of temperature, time, and surfactant through hydrothermal method. The crystal structure, and thermochromic property of sample were analyzed by the means of SEM, XRD, DSC, and PSA. With increasing the amount of surfactant, the phase transition temperature of VO2 sample was decreased from about 70℃ to 60℃ due to the decrease of particle size. The morphology of sample was changed to star-like shape with the decrease of particle size by addition of surfactant. |
