Insulator-metal transition in substrate-independent VO₂ thin film for phase-change devices.

ABSTRACT: Vanadium has 11 oxide phases, with the binary VO₂ presenting stimuli-dependent phase transitions that manifest as switchable electronic and optical features. An elevated temperature induces an insulator-to-metal transition (IMT) as the crystal reorients from a monoclinic state (insulator) to a tetragonal arrangement (metallic). This transition is accompanied by a simultaneous change in optical properties making VO₂ a versatile optoelectronic material. However, its deployment in scalable devices suffers because of the requirement of specialised substrates to retain the functionality of the material. Sensitivity to oxygen concentration and larger-scale VO₂ synthesis have also been standing issues in VO₂ fabrication. Here, we address these major cha

SUBMITTER: Taha M 

PROVIDER: S-EPMC5738395 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature