Synthesis, structure and optical properties of high-quality VO2 thin films grown on silicon, quartz and sapphire substrates by high temperature magnetron sputtering: Properties through the transition temperature

High quality thermochromic VO2 thin films deposited at room temperature by balanced and unbalanced HiPIMS

“…Nevertheless, the reversible transformation during the cooling does not occur at the same temperature, which induced a hysteresis loop. The nature of the hysteresis curves depends very strongly on the competing effects of crystallinity and grain size [22]. The deviation in crystal perfection is known to change the abruptness of the transition as well as the temperature spread of the hysteresis loop [23].…”

Approaching ultrathin VO2 films on sapphire (001) substrates by biased reactive sputtering: Characteristic morphology and its effect on the infrared-light switching

“…Eliminating different phases other than stoichiometric VO 2 is always a crucial issue for obtaining high-quality VO 2 films. 29,30 On the other hand, VO 2 film with substrate biasing of 5 W showed diffraction peaks from VO 2 (020) and (040), which mean b axis oriented growth of pure VO 2 , achieving resistance change over 3 orders of magnitude. High biasing power of 20 W, however, resulted in the deterioration of crystallinity as shown by lowered initial resistance below 10 kΩ.…”

Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO2 Microrods Grown on a Silicon Substrate

“…In VO 2 , both these parameters undergo considerable changes during the phase transition. [41,42] Practically, the light scattering from VO 2 MRs turns out to be a complicated process that involves numerous refractions and reflections dictated by the shape of the MR. Therefore, under identical illumination, small MRs (shown in Figure 4a-f ) may appear as shiny objects, while the massive MRs (shown in Figure 7c-e) may appear as a black shadow.…”