Nano Archive

Control of the quantum size effect of TiO2-SiO2 hybrid particles

Ohno, Tomoya and Numakura, Kazunori and Itoh, Hidenobu and Suzuki, Hisao and Matsuda, Takeshi (2009) Control of the quantum size effect of TiO2-SiO2 hybrid particles. Materials Letters, 63 (20). 1737 - 1739.

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Official URL: http://www.sciencedirect.com/science/article/B6TX9...

Abstract

This paper describes the control of the quantum size effect by controlling the coating layer thickness in TiO2–SiO2 core-shell hybrid particles obtained by the liquid phase deposition (LPD) method. The coating layer thickness of TiO2 on SiO2 nano-particles was controlled by changing the [Ti]/[Si] ratio. The titania coating thickness and crystallite size were estimated by transmission electron microscope (TEM) and X-ray diffraction (XRD), respectively. The quantum size effect of the obtained nano-hybrid particles was estimated by the band gap energy shift, using ultraviolet-visible spectroscopy (UV–vis). As a result, we successfully controlled the degree of the quantum size effect by controlling the coating layer thickness in core-shell TiO2–SiO2 hybrid particles.

Item Type:Article
Uncontrolled Keywords:Nanomaterials; Ceramics; Size effect; Core-shell; Hybrid
Subjects:Material Science > Nanostructured materials
ID Code:6579
Deposited By:SPI
Deposited On:10 Feb 2010 17:50
Last Modified:10 Feb 2010 17:50

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