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Phase Transitions of Template Synthesized $PbTiO_{3}$ Nano-structures  

Chang, Ki-Seog (Department of Chemistry, Korea Air Force Academy)
Bu, Sang-Don (Department of Physics, Chonbuk National University)
Hernandez Bernadez A. (Department of Chemistry, Colorado State University)
Fisher Ellen R. (Department of Chemistry, Colorado State University)
Dorbout Peter K. (Department of Chemistry, Colorado State University)
Publication Information
Korean Journal of Crystallography / v.16, no.2, 2005 , pp. 128-137 More about this Journal
Abstract
We report on the phase transitions of the perovskite nanostructures made by sol-gel template synthesis. The lead titanate ($PbTiO_{3}$) nanostructures were prepared with a chelate sol-gel of titanium tetrabutoxide ($Ti(O^{i}Pr){4}$) and lead acetate ($Pb(OAc)_{2}-3H_{2}O$). $Whatman^{\circledr}$ anodisc membranes (with about 200 nm pore size) served as the template. The template was dipped into the sol, allowed to air dry, and then calcined at $650^{\circ}C$. We have characterized the temperatures of the phase transitions in the $PbTiO_{3}$ nano-structures using DSC, DTA, and second harmonic generation (SHG).
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