Enhanced dielectric response induced by controlled morphology in rutile TiO2 nanocrystals

Minoru Osada, Makoto Kobayashi, Masato Kakihana

研究成果: Article査読

10 被引用数 (Scopus)


High-quality rutile TiO2 nanocrystals have been synthesized by a simple hydrothermal treatment of a watersoluble titaniumglycolate complex at 200°C. The obtained samples were composed of rod- or whisker-like nanocrystals. The aspect ratios of these nanocrystals could be controlled by adding glycolic acid. Combined characterizations with X-ray diffraction, Raman scattering and high-resolution transmission electron microscopy revealed the formation of highly phase-pure and well-crystallized rutile nanorods/ nanowhiskers with the c-axis orientation. Roomerature dielectric measurements indicated that the permittivity for the rutile nanowhiskers is ∼150 at 100 kHz, which is higher than that for the bulk rutile powder. These observations pave a way for morphological controlled rutile nanocrytals to find a broad class of technological uses.

ジャーナルJournal of the Ceramic Society of Japan
出版ステータスPublished - 2013 8

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

フィンガープリント 「Enhanced dielectric response induced by controlled morphology in rutile TiO<sub>2</sub> nanocrystals」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。