Indiana University Purdue University Indianapolis

Research Experiences for Undergraduates (REU)

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Dr. Mangilal Agarwal
Dr. Yogesh Joglekar
Dr. Likun Zhu
Dr. Jian Xie
Dr. Rajesh Sardar
Dr. Ruihua Cheng
Dr. Frédérique Deiss
Dr. Maher Rizkalla
Dr. Horia Petrache
Dr. Hazim El-Mounayri
Graphene-based NEMS (Nano-Electro-Mechanical System) Gas Sensing Device
Dr. Maher Rizkalla, Electrical and Computer Engineering, Funded Through Internal Support.

Nanomaterials have been used for high sensitivity sensing devices due to their ability to alter their properties in response to the environmental parameters such as temperature, pressure, gas, electromagnetic, and chemicals. In particular, the idea of employing nanoparticles on top of graphene thin films has been an active topic in achieving high sensing nanotechnology devices. Dr. Rizkalla's research is focused on developing a novel approach for low noise nanoparticle-based gas sensing device with minimum thermal and cross-talk noise, which can be implemented on a microchip. In this work, a graphene mono-layer is utilized as sensing material and its sensitivity is catalyzed by the addition of gold nanoparticles.

This project pursues details the practical realization of graphene based gas sensing devices, and the interface circuitry that drives the differential potentials, resulting from the sensing unit. Students will gain insight in both nanomaterial fabrication (using techniques such as sputter coating, drop casting, and more) and characterization techniques (gaining experience on sophisticated instrumentation like Field Emission Scanning Electron Microscopy).