کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1795368 | 1524483 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of V/III ratio on photoluminescence spectra of Eu-doped GaN grown by molecular beam epitaxy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of V/III ratio on photoluminescence spectra of Eu-doped GaN grown by molecular beam epitaxy Effects of V/III ratio on photoluminescence spectra of Eu-doped GaN grown by molecular beam epitaxy](/preview/png/1795368.png)
چکیده انگلیسی
Effects of V/III ratio on photoluminescence spectra of Eu-doped GaN grown by molecular beam epitaxy were investigated. The Eu-related luminescence originating from 5D0-7F2 transition of Eu3+ was observed in the wavelength range of 620-624Â nm under above-gap and below-gap excitations. Two luminescence peaks at 620.3 and 622.2Â nm were observed in Eu-doped GaN with the Eu concentration of 1Â at% under above-gap excitation, and a single peak at 620.3Â nm was observed under below-gap excitation, suggesting multiple incorporation sites of Eu in GaN. The intensity ratio of the two peaks was found to vary with the V/III ratio. It was suggested that the incorporation site of Eu in Eu-doped GaN is sensitive to the V/III ratio.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volumes 301â302, April 2007, Pages 420-423
Journal: Journal of Crystal Growth - Volumes 301â302, April 2007, Pages 420-423
نویسندگان
Junji Sawahata, Jongwon Seo, Mikio Takiguchi, Daisuke Saito, Shinya Nemoto, Katsuhiro Akimoto,