Size, composition and alignment of VO2 microrod crystals by the reduction of V2O5 thin films, and their optical properties through insulator-metal transitions

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

“…Furthermore details of the V 2 O 5 film deposition, following thermal treatment, V 2 O 5 droplet formation, and subsequent growth of MRs, may be found in our earlier works. [36,37] The VO 2 MR characterization was performed by transmission electron microscopy (Hitachi HT-7700 TEM), scanning electron microscopy (SEM), and optical microscopy (OM). The results of X-ray fluorescence mapping using a synchrotron X-ray radiation source at the Canadian Light Source (Saskatoon, SK, Canada) and Raman Spectroscopy (Renishaw Invia Reflex Raman Microscope) were not included here and may be found in our earlier articles.…”

“…The results of X-ray fluorescence mapping using a synchrotron X-ray radiation source at the Canadian Light Source (Saskatoon, SK, Canada) and Raman Spectroscopy (Renishaw Invia Reflex Raman Microscope) were not included here and may be found in our earlier articles. [36,37] In the present article, we described two groups of light scattering experiments. The first group was the experiments using focused light which were conducted using a custom-built setup sketched shown in Figure 1d and first reported in our article.…”

“…More details including the schematic of light scattering experiment may be found in ref. [36]. H is orthogonal to the Si substrate.…”

Mechanical properties study of VO2micro‐beam according to metal‐insulator transition

“…Moreover, a crystal structure change occurs between the monoclinic and rutile, causing a difference in density as the distance between the vanadium atoms changes 6 . Therefore, various applications (e.g., smart windows, transistors, optical switch, and strain sensors) using the MIT of VO 2 have been developed and researched 7‐23 …”

“…6 Therefore, various applications (e.g., smart windows, transistors, optical switch, and strain sensors) using the MIT of VO 2 have been developed and researched. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] The difference in the densities of the metal and insulator phases complicates the commercialization of these applications, as it can result in deterioration, disuse, or even fracture of the materials during cycling. Therefore, it is necessary to understand the mechanical properties of each phase in detail.…”