Crystallinity of Barium Titanate Nanoparticles Synthesized by Sol-Gel Method |
| Journal |
Key Engineering Materials (Volume 350) |
| Volume |
Electroceramics in Japan X |
| Edited by |
K. Katayama, K. Kato, T. Takenaka, M. Takata and K. Shinozaki |
| Pages |
31-34 |
| DOI |
10.4028/www.scientific.net/KEM.350.31 |
| Online since |
October, 2007 |
| Authors |
Teruhisa Makino,
Masashi Arimura,
Kunitaka Fujiyoshi,
Yoko Yamashita,
Makoto Kuwabara
|
| Keywords |
Barium Titanate, Crystallization, Dye-Sensitized Solar Cell (DSC), Nanoparticle, Sol-Gel Method, Transmission Electron Microscopy (TEM), X-Ray Diffraction (XRD) |
| Abstract |
We synthesized barium titanate (BaTiO3) nanoparticles by sol-gel process and investigated their
crystallization behavior using differential scanning calorimetry and X-ray diffraction. BaTiO3
nanoparticles with various degrees of crystallinity were obtained by adjusting synthesis conditions.
Under aging conditions that do not allow dealcholization reaction to complete, many hydroxyl
ligands remain in as-synthesized BaTiO3 nanoparticles, resulting in the formation of voids or
defects in the nanoparticles after calcination. It is essential to use high concentration alkoxides
precursor solutions for producing BaTiO3 nanoparticles with high crystallinity at low temperature. |
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