Radiation-induced luminescence from TiO₂ by 10, 20 and 30 keV oxygen ion irradiations

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• 作者：Sin-iti Kitazawa ; Shunya Yamamoto ; Masaharu Asano ; Yuichi Saitoh ; Shintaro Ishiyama
• 关键词：Ion irradiation ; Optical emission spectroscopy ; Radiation-induced luminescence ; Titanium dioxide ; Thin film
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2007
• 出版时间：March 2007
• 年：2007
• 卷：256
• 期：1
• 页码：233-237
• 全文大小：433 K

文摘

Radiation-induced luminescence produced by 10, 20 and 30 keV oxygen ion irradiations at room temperature has been used to study photon emission from titanium dioxide (TiO₂) targets. The targets were produced by the methods; sol–gel, direct oxidation, anodic oxidation and pulsed laser deposition. The atomic lines from titanium and oxygen, visible bands at 2.0 and 2.6 eV due crystalline defects, and a UV band at 3.9 eV from the direct transitions were observed in the UV–visible spectra. The energy dependences of the irradiation ion were not observed in the spectra. The bands were hardly affected at all by differences in the target. This study indicates the potential titanium dioxide as a radiocatalyst.