Clemson University TigerPrints All Dissertations Dissertations August 2018 Graphene/P(VDF-TrFE) Heterojunction Based Wearable Sensors with Integrated Piezoelectric Energy Harvester Soaram Kim Clemson University,
[email protected] Follow this and additional works at: https://tigerprints.clemson.edu/all_dissertations Recommended Citation Kim, Soaram, "Graphene/P(VDF-TrFE) Heterojunction Based Wearable Sensors with Integrated Piezoelectric Energy Harvester" (2018). All Dissertations. 2558. https://tigerprints.clemson.edu/all_dissertations/2558 This Dissertation is brought to you for free and open access by the Dissertations at TigerPrints. It has been accepted for inclusion in All Dissertations by an authorized administrator of TigerPrints. For more information, please contact
[email protected]. GRAPHENE/P(VDF-TrFE) HETEROJUNCTION BASED WEARABLE SENSORS WITH INTEGRATED PIEZOELECTRIC ENERGY HARVESTER A Dissertation Presented to the Graduate School of Clemson University In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Electrical Engineering by Soaram Kim August 2018 Accepted by: Dr. Goutam Koley, Committee Chair Dr. William Rod Harrell Dr. Pingshan Wang Dr. Apparao M. Rao ABSTRACT Graphene, with its outstanding material properties, including high carrier mobility, atomically thin nature, and ability to tolerate mechanical deformation related strain up to 20% before breaking, make it very attractive for developing highly sensitive and conformable strain/pressure sensor for wearable electronics. Unfortunately, graphene by itself is not piezoresistive, so developing a strain sensor utilizing just graphene is challenging. Fortunately, graphene synthesized on Cu foil can be transferred to arbitrary substrates (preserving its high quality), including flexible polymer substrates, which will allow the overall flexibility and conformability of the sensing element, to be maintained.