Laser ablated plasma plume characteristics for photocatalyst TiO 2 thin films preparation

Tamiko Ohshima, Shouta Nakashima, Tsuyoshi Ueda, Hiroharu Kawasaki, Yoshiaki Suda, Kenji Ebihara

Research output: Contribution to journalArticlepeer-review

Abstract

The TiO2 plasma plume produced by pulsed laser deposition (PLD) using a Nd:YAG laser (532 nm) is investigated by temporal and spatial resolved optical emission spectroscopy. Dynamics of neutral and ionized titanium species in the plume agreed with a drag model, which was explained as a collision between the excited species and ambient gas. The velocity of neutral oxygen atoms is constant in spite of increasing the delay time after the laser irradiation and the distance from the target. The crystallinity of TiO 2 films deposited in the ablation plasma of Ti and TiN target was higher than that of TiO2 target.

Original languageEnglish
Pages (from-to)106-110
Number of pages5
JournalThin Solid Films
Volume506-507
DOIs
Publication statusPublished - May 26 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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