کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9595775 | 1507984 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High resolution electron energy loss spectroscopy study of clean, air-exposed and methanol-dosed Ge(1Â 0Â 0) surface
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: High resolution electron energy loss spectroscopy study of clean, air-exposed and methanol-dosed Ge(1Â 0Â 0) surface High resolution electron energy loss spectroscopy study of clean, air-exposed and methanol-dosed Ge(1Â 0Â 0) surface](/preview/png/9595775.png)
چکیده انگلیسی
Using high resolution electron energy loss spectroscopy (HREELS), we have characterized the fingerprint spectra of clean, hydrogenated, methanol-dosed and air-exposed n-doped Ge(1Â 0Â 0). On clean Ge(1Â 0Â 0) 2Â ÃÂ 1, we report the observation of a surface phonon peak between â¼28-35Â meV. The position and shape of this peak is sensitive to the presence of low surface coverage of hydrogen and oxygen. By adsorbing molecular hydrogen on the n-doped Ge, this peak shifts towards the elastic peak, and becomes attenuated. The HREELS fingerprint spectrum of air-exposed Ge is similar to that created by dosing Ge with methanol. Methanol undergoes dissociation into methyl radicals and hydroxyl species on Ge surfaces at room temperature and oxidizes the Ge surface readily.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 575, Issues 1â2, 20 January 2005, Pages 51-59
Journal: Surface Science - Volume 575, Issues 1â2, 20 January 2005, Pages 51-59
نویسندگان
Chee Wei Lim, Jia Mei Soon, Ngai Ling Ma, Wei Chen, Kian Ping Loh,