Acousto-electric modulation of epitaxial graphene

Yi-Ting Liou

Host: Paul-Drude-Institut für Festkörperelektronik, Berlin, Germany

Scientific Background

I studied Materials Science and Engineering in National Taiwan University, and obtained my Bachelor and Master Degree in 2012 and 2014, respectively. During my Master’s study I worked on graphene-based devices, such as photovoltaics and phototransistors. In addition to device fabrication, I also have experiences on graphene growth and characterization.

Current Research Topic

My current research focuses on modulating the electronic properties of graphene with surface acoustic waves (SAWs). With SAWs, we can either induce carriers transport (acousto-electric current) or modulate the band structure of graphene.


The project aims at carrier control in graphene by SAWs. The goal is to demonstrate this by graphene-based devices such as acoustic switches and electron beam supercollimator.