Modification in the optical properties of VO2 thin films by low fluence electron irradiation

作者：Lu Yong^*; Lin Li Bin; Zou Pin; He Jie; Lu Tie Cheng

来源：Chinese Journal of Lasers, 2001, 28(10): 941-944.

• Low fluence electron irradiation
• Vacuum annealing process

VO2 thin films prepared by vacuum annealing process were irradiated by 1012/cm2 low fluence electron beam with energy of 0.8 MeV. Before and after irradiation the samples were characterized by XRD, UV-VIS and Raman spectroscopy analyses. After electron irradiation the optical response to temperature is increased dramatically, the hysteresis extend is reduced, and the phase transition point is not changed obviously. And the transmittance of 370-900 nm is increased and absorptivity is decreased. The abnormal change of optical properties at metallic boundary was introduced by low fluence electron. Obvious change of XRD patterns and vibration peak were observed in samples before and after irradiation by low fluence electron.

• 出版日期2001
• 单位四川大学