February 24th, 2017 KAVITHA KALAVOOR Optoelectronics
ICFO-The Institute of Photonic Sciences

KAVITHA KALAVOOR: ’Graphene on Ferroelectrics for Mid-Infrared’ Photodetection

Mid-infrared (mid-IR) photo-detection has been recently growing in importance because of its multiple applications, including vibrational spectroscopy and thermal imaging. We propose and demonstrate a novel pyro-resistive photo-detection platform that combines a ferroelectric substrate (a z-cut LiNbO3 crystal) and a graphene layer transferred on top of its surface with electrical connections.

IVAN BORDACCHINI: ’Plasmonic Photocatalysis’

Noble metal nanoparticles supporting plasmonic resonances behave as efficient nanosources of light, heat and energetic electrons. In the last decades there has been extensive research by the nanoscience and catalysis communities on the potential use of plasmonic nanoparticles for both solar-to-electrical energy conversion and photocatalysis. Plasmonic photocatalysis has the potential to enhance photocatalytic efficiency under visible light irradiation, increasing the prospect of using sunlight for environmental, energy and synthetic applications. In this talk examples of proof of concept of plasmon assisted photochemical reactions will be discussed as well as synthetic strategies in order to obtain plasmonic catalysts.

PhD Seminar, February 24, 2017, 17:00. Seminar Room