Applied Science and Convergence Technology 2013; 22(4): 193-197
Published online July 1, 2013
Copyright © The Korean Vacuum Society.
Juho Jeong , Manil Kang , Sok Won Kim
In order to investigate the photo-electric property in VO₂ film grown by a sol-gel method, the currents generated by the light irradiation and nonirradiation were measured as functions of the bias voltage and the temperature. From the result, the generated current in the film changed with the light irradiation and nonirradiation, and it gradually increased with the bias voltage. In particular, the maximum current was generated at 50℃ under the light irradiation; the temperature is lower comparing the MIT (metal-insulator transition) temperature in VO₂. This result indicates that VO₂ shows the photo-voltaic effect, and so that, it is expected that the VO₂ film is applied for a photo-voltaic device.
Keywords: VO₂,광기전력,태양 에너지,금속-절연체 전이,Photo-voltaic,Solar energy,Metal-insulator transition