An Exploration Of The Use Of Electrochemical Impedance Spectroscopy Of Epitaxial

Alex Mau

School Name

South Carolina Governor's School for Science and Mathematics

Grade Level

12th Grade

Presentation Topic

Engineering

Presentation Type

Mentored

Mentor

Mentor: MVS Chandrashekhar, Department of Electrical Engineering, University of South Carolina

Abstract

Electrochemical impedance spectroscopy (EIS) was used to analyze the impedance of epitaxial graphene as the graphene was exposed to substances such as air, de-ionized water, and acetone fumes. The results indicated that the graphene did respond to exposure to different substances; however, it was also clear that the graphene was too sensitive to exposure and therefore could not be used in this way to differentiate between different substances. In fact, the results for tests on different substances were, on average, more similar than the results for multiple tests on the same substance.

Start Date

4-11-2015 9:15 AM

End Date

4-11-2015 9:30 AM

COinS
 
Apr 11th, 9:15 AM Apr 11th, 9:30 AM

An Exploration Of The Use Of Electrochemical Impedance Spectroscopy Of Epitaxial

Electrochemical impedance spectroscopy (EIS) was used to analyze the impedance of epitaxial graphene as the graphene was exposed to substances such as air, de-ionized water, and acetone fumes. The results indicated that the graphene did respond to exposure to different substances; however, it was also clear that the graphene was too sensitive to exposure and therefore could not be used in this way to differentiate between different substances. In fact, the results for tests on different substances were, on average, more similar than the results for multiple tests on the same substance.