"Ultraviolet Raman Spectroscopy of Lead Zirconate Titinate Nanotubes" by Joseph Spinuzzi
 

Ultraviolet Raman Spectroscopy of Lead Zirconate Titinate Nanotubes

Document Type

Student Presentation

Presentation Date

April 2016

Faculty Sponsor

Dmitri Tenne

Abstract

Variable-temperature ultraviolet Raman spectroscopy study of lead zirconate titanate, PbZr1-xTixO3 (PZT), nanotubes of different wall thicknesses ranging from 3 to 80 nm to be presented. PZT nanotubes were grown on a SrTiO3 substrates by collaborators at University of Wisconsin-Madison. The spectra of the PZT thin film were measured for comparison. Raman spectra were measured with ultraviolet excitation (325 nm) over a temperature range of 10 to 800 K. Analysis of temperature dependence of Raman intensities allowed us to determine ferroelectric phase transition temperature as a function of wall thickness, which was found to vary from ~100 to 650 K.

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