Discipline: Nanoscience
Subcategory: Materials Science
Session: 4
Room: Park Tower 8216
Shaniqua Aya Jones - Tennessee State University
Co-Author(s): Omari Paul, Tennessee State University, Nashville, TN; Anthony Thai, Tennessee State University, Nashville, TN; Akinwunmi Joaquim, Tennessee State University, Nashville, TN; Marvell Ridley, Tennessee State University, Nashville, TN; Chris Buford ,Tennessee State University, Nashville, TN; April Falconer, Tennessee State University, Nashville, TN; Akira Ueda, Fisk University, Nashville TN; Richard Mu, Tennessee State University, Nashville, TN; Frances Williams, Tennessee State University, Nashville, TN
Surface acoustic wave (SAW) sensors use piezoelectric substrates to generate and detect acoustic waves. Piezoelectric materials provide the transduction from electric potential to mechanical strain and vice versa. For this research project, we are investigating materials with high piezoelectricity in addition to being chemically inert, durable, flexible, and cheap. One polymeric system that exhibits these properties is Polyvinylidene Fluoride (PVDF) doped with neutral and reduced Graphene Oxide (GO). In this work, we will provide the procedure for the optimization of the piezoelectric properties of PVDF films through doping which has been shown to promote β-phase formation (functional phase). The different experimental approaches used to fabricate the GO + PVDF composites have been conducted and the electrospray technique shows unique advantages over others with an increase on the β-phase formation. During this talk, we will present and discuss how the sample preparation and fabrication parameters affect the material properties such as, applied voltage, solution flowrate, needle to collector distance, needle gauge and doping concentration in PVDF. The Raman, XRD, Profilometry, and SEM results associated with these findings will also be discussed
Funder Acknowledgement(s): Office of Naval Research Grant #N0014-17-1-3060
Faculty Advisor: Frances Wiliiams, frwilliams@tnstate.edu
Role: Sample preparation and fabrication of doped PVDF and data analysis.