Fri, 07/01/2016 -
3:00pm to 4:00pm
Material Science Seminar
Nihar Pradhan, National High Magnetic Field Laboratory
2D Layered Materials Beyond Graphene: Optoelectronic Properties of Transition metal dichalcogenides
Abstract: Two-dimensional layered materials such as graphene, h-BN and transition metal dichalcogenides, by the virtue of their unique properties provide immense opportunities not only to explore fundamental physics but also to solve critical technological problems. Transition metal dichalcogenides (TMDs), such as MoS2, WSe2, MoSe2 and many others belong to this class of materials, which we are exploring. The materials display a broad range of electronics and optoelectronics properties such as semimetals, semiconductors, insulators, metal-to-insulator phase transition and superconductors at cryogenic temperature. In my talk I will present the over all transport properties of TMDs indicating one can produce high quality, energy efficiency field-effect transistors on single or few-atomic layers of these materials. We also evaluated the over all optoelectronic properties of these materials which reveals great potential for transparent & flexible photovoltaic solar cell, photosensing and optoelectronic switching applications.