کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5422347 | 1507915 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
SiH vibrational mode on a HSi(111)1Â ÃÂ 1 surface with hydrogen deficiency
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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: SiH vibrational mode on a HSi(111)1Â ÃÂ 1 surface with hydrogen deficiency SiH vibrational mode on a HSi(111)1Â ÃÂ 1 surface with hydrogen deficiency](/preview/png/5422347.png)
چکیده انگلیسی
We used a dipole coupling theory to calculate modulations of the SiH vibrational mode on a HSi(111)1Â ÃÂ 1 surface, and analyzed the observed optical sum frequency generation (SFG) spectra. As the hydrogen coverage decreased, the peak position of the SiH vibrational mode shifted to the red side in the experimental SFG spectra [Hien et al., Surf. Int. Anal., 44 662 (2012)]. The calculated peak shift was quantitatively consistent with the observed redshift, indicating that the peak shift can be attributed to dipole coupling among the SiH oscillators. On the other hand, the experimental peak widths at lower coverages were wider than those of the calculated peaks. This suggests that local structural defects and/or dangling bonds modulated the vibration of the surrounding SiH oscillators.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 614, August 2013, Pages 24-29
Journal: Surface Science - Volume 614, August 2013, Pages 24-29
نویسندگان
Yoshihiro Miyauchi, Hien Chuat, Goro Mizutani,