We are a research group in the Physics Department of Vanderbilt University specializing in nanoscale electronics and optoelectronics. Our main focus is two-dimensional atomic crystals – a recently discovered class of materials that are only atoms thick. These include: graphene, atomically thick form of carbon with record electrical conductivity, thermal conductivity, and strength; monolayer transition metal dichalcogenides (MoS2, WSe2, MoSe2), semiconductors strongly interacting with light, and monolayer boron nitride (BN), an atomically-smooth insulator material. Our overarching goal is to answer the following questions:
We are equally interested in potential applications of our research. We would like to explore the potential of graphene and other two-dimensional materials towards applications in electronics; design nanoelectromechanical mass and force sensors capable of weighing individual atoms; create graphene biosensors for biomedical applications. A big part of our research is nanoscale fabrication. We use the facilities at Vanderbilt Institute of Nanoscale Science and Engineering and Oak Ridge National Laboratory to make, contact, cut, fold, and stack with atomic precision various two-dimensional materials from graphene to boron nitride.
Recent highlights of group’s work:
Probing liquids at the nanoscale with graphene FETs. We showed that transistors made of single sheets of graphene can be used to electrically interrogate nanoscale volumes of liquid. The work is published in Nature Communications and Nano Letters. Press coverage: Vanderbilt News
We gratefully acknowledge funding from:
Open positions: Currently looking for motivated graduate and undergraduate students to work on electronic properties and device applications of graphene! Contact me via email/chat or simply stop by my office if interested.
The group: Internal group site (to track projects progress and to share relevant information). Ask me if you need to get access to it!