Student-Faculty Collaborative Research Grant Report
Biological and Chemical Physics | Physics
Graphene, an atomically thin form of carbon, has the useful property that its electrical resistance can change dramatically by the presence of external electric fields. Because biological systems interact through electrical impulses, graphene shows promise as a biological sensor. It has been found, however, that the mobility of graphene falls dramatically when measured in a liquid environment such as those of biological systems. Mobility is a quantity that describes how charges move through a graphene sheet in the presence of fields. Lower mobility implies that the inherent resistance of graphene will be high; therefore, sensitivity of changes to external fields in low mobility devices will also be low.
Therefore, this work was to measure mobility in liquid gated graphene field effect (GFET) devices. In addition, different variables were explored to help determine techniques to improve mobility in these devices.
Crosser, Michael S., "Student-Faculty Collaborative Research Grant Report" (2015). Post-Grant Reports. Report. Submission 36.