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Moradi M, Pakizeh E. Kramers-Kronig method for the determination of optical constant of PZT nanotubes synthesized by sol-gel membrane process with high aspect ratio. ICOP & ICPET _ INPC _ ICOFS 2014; 20 :1277-1280
URL: http://opsi.ir/article-1-327-en.html
URL: http://opsi.ir/article-1-327-en.html
1- Shiraz University
Abstract: (4116 Views)
Abstract- We report a template-directed growth of Pb(ZrxTi1−x)O3 (PZT) nanotubes in conjunction with sol-gel process and spin coating technique. This method employs the spin-coating of a sol–gel solution into an anodic aluminum oxide membrane (SSAM). The aspect-ratios of the PZT nanotubes were about 700. The method is based on repeated pores filling by precursor solution. The filling-pyrolys-filling process was repeated several times. The process of fabrication was fast in our research because the required time until calcination step was 1 hour and very low in comparison with pervious work. Field emission scanning electron microscope (FE-SEM) images show that PZT nanotube is successfully synthesized. The metal oxide bands like ZrO6 and TiO6 of the final PZT nanotubes were confirmed by FTIR analysis. The optical constants such as refractive index, extinction coefficient, real and imaginary part of dielectric function were determined from the FTIR spectra using Kramers-Kronig transformation (KKT) method.
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