QNC 1501
Speaker
Mahi
R.
Singh
Department
of
Physics
and
Astronomy
Western
University
Title
Switching and sensing mechanism in graphene nanocomposites
Abstract
In this talk both the one-photon and two-photon switching and sensing mechanisms in graphene hybrid nanocomposites will be discussed. Graphene was invented by a Canadian scientist Professor P. R. Wallace in 1947. It is a two-dimensional material where the carbon atoms are arranged in a honeycomb lattice. Hybrid nanomaterials are fabricated by combining two or more semiconductor, metallic, or biological nanostructures with graphene. By using various combinations of these nanostructures one can create enormous numbers of graphene hybrid nanocomposites. The switching and sensing mechanisms in nanocomposites can be controlled by the shape, size and distance between constituent nanostructures. It is expected that this research will provide a basic physical understanding and development of new types of nano-devices including optical sensors and optical switches.