Analytical electron microscopy analysis of insulating and metallic phases in nanostructured vanadium dioxide.

ABSTRACT: Vanadium dioxide (VO₂) is a strongly correlated material that exhibits the insulator-to-metal transition (IMT) near room temperature, which makes it a promising candidate for applications in nanophotonics or optoelectronics. However, creating VO₂ nanostructures with the desired functionality can be challenging due to microscopic inhomogeneities that can significantly impact the local optical and electronic properties. Thin lamellas, produced by focused ion beam milling from a homogeneous layer, provide a useful prototype for studying VO₂ at the truly microscopic level using a scanning transmission electron microscope (STEM). High-resolution imaging is used to identify structural inhomogeneities while electron energy-loss spectroscopy (EELS) supported by sta

SUBMITTER: Krpensky J 

PROVIDER: S-EPMC11197434 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature