Terahertz spectroscopy studies on epitaxial vanadium dioxide thin films across the metal-insulator transition.

Role of microstructures on the M1-M2 phase transition in epitaxial VO2 thin films

Vanadium dioxide (VO2) with its unique sharp resistivity change at the metal-insulator transition (MIT) has been extensively considered for the near-future terahertz/infrared devices and energy harvesting systems. Controlling the epitaxial quality and microstructures of vanadium dioxide thin films and understanding the metal-insulator transition behaviors are therefore critical to novel device ...

Current-modulated optical properties of vanadium dioxide thin films in the phase transition region

Articles you may be interested in Optical switching and photoluminescence in erbium-implanted vanadium dioxide thin films Effect of oxygen stoichiometry on the insulator-metal phase transition in vanadium oxide thin films studied using optical pump-terahertz probe spectroscopy Appl. Tuning the properties of VO2 thin films through growth temperature for infrared and terahertz modulation applicat...

Effect of oxygen stoichiometry on the insulator-metal phase transition in vanadium oxide thin films studied using optical pump-terahertz probe spectroscopy

Work function of vanadium dioxide thin films across the metal-insulator transition and the role of surface nonstoichiometry.

Vanadium dioxide (VO(2)) undergoes a sharp metal-insulator transition (MIT) in the vicinity of room temperature and there is great interest in exploiting this effect in novel electronic and photonic devices. We have measured the work function of vanadium dioxide thin films across the phase transition using variable temperature Kelvin force microscopy (KFM). The work function is estimated to be ...

Synthesis of vanadium dioxide thin films on conducting oxides and metal–insulator transition characteristics

We report on growth and physical properties of vanadium dioxide (VO2) films on model conducting oxide underlayers (Nb-doped SrTiO3 and RuO2 buffered TiO2 single crystals). The VO2 films, synthesized by rf sputtering, are highly textured as seen from X-ray diffraction. The VO2 film grown on Nb doped SrTiO3 shows over two orders of magnitude metal–insulator transition, while VO2 film on RuO2 buff...