Light-Matter Interactions in 2D Materials and their Complexes with Plasmonic Nanostructures
July 19th, 2019 VIKTORYIA SHAUTSOVA University of Oxford

2D materials and their heterostructures have recently attracted rapidly growing scientific interest for a new generation of electronic and optoelectronic devices. Due to dangling-bond-free surface of 2D materials, the constraints of lattice matching are lifted giving unprecedent flexibility for the device fabrication. Furthermore, chemical vapour deposition (CVD) technique has enabled large scale material production significantly improving device fabrication process and facilitating all 2D material optoelectronic devices with graphene typically used as tunable electrode. However, due to ultrathin nature of 2D materials, their optoelectronic devices typically suffer from low light absorption. To enhance light-matter interaction, optical focusing elements such as plasmonic metal nanostructures can be utilized. This talk will highlight our recent research activities on light matter interaction in graphene/plasmonic nanostructure complexes and all 2D material photodetector and LED devices. Furthermore, the laser induced transformation of PdSe2, a less explored transition metal dichalcogenide, will be discussed in terms of potential for on-demand device fabrication.

Seminar, July 19, 2019, 12:00. ICFO’s Blue Lecture Room

Hosted by Prof. Frank Koppens