[Research on optical property of phase transition VO2 films].
Optical transmission spectra of VO2 films on glass, fused silica, and sapphire were recorded and analyzed during heating process. Thermally induced phase transition of VO2 films occurred at a certain temperature, associated with abrupt changes in optical properties. The transition temperature and the contrast of the optical properties depended on the substrate and the deposit method used. The change in transmittance delta T at 5 microns of VO2 films deposited on sapphire by RF magnetron sputtering was 70%, and the corresponding relative change delta T/TRT was 94%. For the VO2 films deposited on glass by RF magnetron sputtering, delta T at 2.5 microns was 64.2%, and delta T/TRT was as high as 98%.
He
Chen-juan
CJ
Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100080, China.
Li
De-hua
DH
Lu
Zhen-zhong
ZZ
Nie
Yu-xin
YX
Wang
Xue-jin
XJ
Yuan
Hong-tao
HT
Feng
Ke-an
KA
D000537:Aluminum Oxide / Q000737:chemistry; D005898:Glass; D055095:Optics and Photonics; D044367:Phase Transition; D012822:Silicon Dioxide / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D044366:Transition Temperature; D014639:Vanadium / Q000737:chemistry; D017968:Vanadium Compounds / Q000737:chemistry*
D017968:Vanadium Compounds; D014639:Vanadium; D012822:Silicon Dioxide; D000537:Aluminum Oxide