کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1687175 1010648 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photoluminescence of inert-gas ion implanted sapphire after 230-MeV Pb ion irradiation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Photoluminescence of inert-gas ion implanted sapphire after 230-MeV Pb ion irradiation
چکیده انگلیسی

In the present work the photoluminescence (PL) character of sapphire implanted with 110-keV He, Ar or Ne ions and subsequently irradiated with 230-MeV Pb was studied. The implantation was performed at 320 and 600 K using fluences from 5.0 × 1016 to 2.0 × 1017 ions/cm2. The Pb ion irradiation was carried out at 320 K. The obtained PL spectra showed peaks at 375, 413 and 450 nm with maximum intensity at an implantation fluence of 5.0 × 1016 ions/cm2 and a new peak at 390 nm appeared in the He-implanted and subsequently Pb-irradiated samples. Infrared spectra showed a broadening of the absorption band between 460 and 510 nm indicating strongly damaged regions formed in the Al2O3 samples. A possible PL mechanism is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 245, Issue 1, April 2006, Pages 210–213
نویسندگان
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