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Proceedings Paper

Preparation and characterization of ferroelectric inverse opal via a sol-gel process
Author(s): Su Huang; Ai-Dong Li; Yuan Gao; Yue-Feng Tang; Nai-Ben Ming
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Paper Abstract

Ferroelectric inverse opals are promising in making tunable photonic crystals. In this work, inverse opal photonic crystals of several ferroelectric materials such as (Pb1-xLax)(Zr1-yTiy)O3 (PLZT), SrxBa1-xNb2O6 (SBN) and PbTiO3 were prepared respectively by a sol-gel procedure. Synthetic opals of monodisperse submicrometer polystyrene (PS) spheres were used as the templates and precursor solutions were infiltrated into the interstices of the templates. The templates were removed by the following calcination process, which also realized the crystallization. Annealing process was optimized for each ferroelectric material. A scanning electron microscopy was used to observe the pattern of the inverse opals. XRD results proved that they were in desired ferroelectric phase respectively. The final samples were well ordered in all 3 dimensions within small domains. The average size of a single ordered domain in the SBN sample is about 20μm x 40μm. The size in PLZT and PbTiO3 samples is about 30μm x 50μm. Those domains distribute equably on an area of 2cm x 1cm on the substrates.

Paper Details

Date Published: 9 February 2005
PDF: 8 pages
Proc. SPIE 5635, Nanophotonics, Nanostructure, and Nanometrology, (9 February 2005); doi: 10.1117/12.574244
Show Author Affiliations
Su Huang, Nanjing Univ. (China)
Ai-Dong Li, Nanjing Univ. (China)
Yuan Gao, Nanjing Univ. (China)
Yue-Feng Tang, Nanjing Univ. (China)
Nai-Ben Ming, Nanjing Univ. (China)


Published in SPIE Proceedings Vol. 5635:
Nanophotonics, Nanostructure, and Nanometrology
Xing Zhu; Stephen Y. Chou; Yasuhiko Arakawa, Editor(s)

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