کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5466183 | 1517983 | 2017 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced spectral response of semiconducting BaSi2 films by oxygen incorporation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We investigated the effect of the incorporation of O atoms into BaSi2 films on their photoresponse properties. BaSi2 films with higher O concentration exhibited higher photoresponsivity. Time-of-flight secondary ion mass spectrometry measurements showed that the O atoms were uniformly distributed in the BaSi2 films, in contrast to our prediction that they would be mostly located around grain boundaries. First-principles calculations revealed that the O atoms occupy the interstitial sites known as the 4c sites rather than substitutional sites. Moreover, they do not create localized states within the forbidden band gap, which indicates that O atoms incorporated into BaSi2 are inactive.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 629, 1 May 2017, Pages 17-21
Journal: Thin Solid Films - Volume 629, 1 May 2017, Pages 17-21
نویسندگان
Weijie Du, Ryota Takabe, Suguru Yachi, Kaoru Toko, Takashi Suemasu,