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Title page for ETD etd-03182015-123247

Type of Document Dissertation
Author Jones, Jennifer Ann
Author's Email Address jennifer.a.jones@vanderbilt.edu
URN etd-03182015-123247
Title Linear and Nonlinear Optical Study of Multilayer Ferroelectric Polymer Systems
Degree PhD
Department Interdisciplinary Materials Science
Advisory Committee
Advisor Name Title
Dr. Norman Tolk Committee Chair
Dr. Kane Jennings Committee Co-Chair
Dr. Deyu Li Committee Member
Dr. Eva Harth Committee Member
Dr. Jimmy Davidson Committee Member
  • ferroelectric
  • SHG
  • thin film
  • polymer
Date of Defense 2015-03-12
Availability unrestricted
Multilayer polymer systems are a focus of increasing research effort motivated by the possibility to realize compact and flexible energy storage and energy harvesting devices. However, the performance and stability of these polymer systems are highly dependent on temperature. In this study the structure of monolayer ferroelectric polyvinylidene fluoride (PVDF) thin films and the relaxation dynamics as a function of temperature are characterized using XRD, FTIR and second harmonic generation (SHG). Multilayered ferroelectric polyvinylidene fluoride (PVDF) systems are fabricated using enabling technology in co-extrusion for increased energy storage and energy harvesting efficiency as well as increased stability at elevated temperatures. To understand the physics of why these multilayered systems perform better than single layer PVDF characterization techniques using second harmonic generation (SHG), electric field induced second harmonic (EFISH) and Raman laser spectroscopy are developed. Results show that the combination of Raman and SHG is a very sensitive, non-destructive and versatile technique that can be used to study the ferroelectric and structural properties of these systems. The addition of the EFISH technique allows the interrogation of structural and dielectric properties within individual layers and at the interfaces.
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