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論文

In-situ monitoring of ion-beam luminescence of Si-O-C(-H) ceramics under proton-beam irradiation

成澤 雅紀*; 江夏 昌志; 武山 昭憲; 杉本 雅樹; 出崎 亮; 佐藤 隆博; 外薗 洋樹*; 河相 武利*; 岩瀬 彰宏*

Journal of the Ceramic Society of Japan, 123(9), p.805 - 808, 2015/09

Two kinds of Si-O-C(-H) ceramics particles having intrinsic photoluminescence (PL) spectra were prepared from silicone resin microspheres by heat treatment in a hydrogen atmosphere at 800 or 1100$$^{circ}$$C. The obtained particles were painted on a Si substrate using a binder, and ion-beam-luminescence spectra were observed under proton beam irradiation with an acceleration energy in the ranges of 1-3 MeV. Observed spectra had peaks at wavelength of 520-540 nm. These peak wavelengths were larger than those observed under UV light irradiation. The luminescence of H$$_{2}$$ 1100 (sample decarbonized at 1100$$^{circ}$$C) was bright, and that of H$$_{2}$$ 800 (sample decarbonized at 800$$^{circ}$$C) was faint. However, the intensity of luminescence decreased rapidly at an early stage of the beam irradiation. In air, a sharp luminescence band with a peak at 300 nm appeared together with the main emission with a peak in the range of 520-540 nm. The existence of the sharp band at 300 nm was apparent in the H$$_{2}$$ 800 spectra, whereas it appeared as a minor peak in the H$$_{2}$$ 1100 spectra in air.

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