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Preparation of TiO$$_{2}$$ nanoparticles by pulsed laser ablation; Ambient pressure dependence of crystallization

Matsubara, Masakazu*; Yamaki, Tetsuya; Ito, Hisayoshi; Abe, Hiroaki*; Asai, Keisuke*

Pulsed laser ablation with a KrF excimer laser was used to prepare fine particles of titanium dioxide (TiO$$_{2}$$). The ablation in an atmosphere of Ar and O$$_{2}$$ (5:5) at total pressures of $$geq$$ 1 Torr led to the formation of TiO$$_{2}$$ nanoparticles composed of anatase and rutile structures without any suboxides. The weight fraction of the rutile/anatase crystalline phases was controlled by the pressure of the Ar/O$$_{2}$$ gas. The TiO$$_{2}$$ nanoparticles had a spherical shape and their size, ranging from 10 and 14 nm, also appeared to be dependent on the ambient pressure.

Language

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English

Journal

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Japanese Journal of Applied Physics, Part 2

Volume

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42

Number

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5A

Pages

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p.L479 - L481

Publication Year/Month

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2003/05

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Held date

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DOI for research data

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Keywords

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Titanium Dioxide (TiO$$_{2}$$); Nanoparticles; Pulsed Laser Ablation; Crystallization; Nanoparticle Deposition

Research Facility

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TIARA(イオン照射研究施設)

Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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Accesses

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- Accesses

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