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Title:Ferroelectric Barium Titanate Nanowires: Synthesis, Properties, and Device Applications
Author(s):Wang, Zhaoyu
Doctoral Committee Chair(s):Yu, Min-Feng
Department / Program:Mechanical Engineering
Discipline:Mechanical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Mechanical
Abstract:With the assistance of nanomanipulation and electron beam deposition techniques, a nanoscale energy converter device was fabricated using an individual BaTiO3 nanowire. In this device, due to the piezoelectric effect, voltage response was generated from the BaTiO3 nanowire by a periodically varying tensile mechanical strain applied with a precision mechanical testing stage. The measured voltage generation from the nanowire was found to be directly proportional to the applied strain rate, and was successfully modeled through consideration of an equivalent circuit for the piezoelectric nanowire under low frequency operation. This device, besides demonstrating a controlled experimental method for the study of direct piezoelectric effect in nanostructures, also implies the use of such perovskite piezoelectric nanowires for efficient energy harvesting applications.
Issue Date:2008
Description:105 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008.
Other Identifier(s):(MiAaPQ)AAI3314934
Date Available in IDEALS:2015-09-25
Date Deposited:2008

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