کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5349336 | 1503615 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and properties of crystalline thin film of antimony trioxide on the Si(1Â 0Â 0) substrate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Atomic-scale understanding and processing of the surface and interface properties of antimony trioxide (Sb2O3) are essential to the development of nanoscale Sb2O3 materials for various applications, such as photocatalysts, transparent conducting oxides, optical coatings, dielectric films, and fire retardants. Lack of atomically well-defined, crystalline Sb2O3 templates has however hindered atomic resolution characterization of the Sb2O3 properties. We report the preparation of crystalline Sb2O3 thin films on the Si(1Â 0Â 0) substrate with a simple process by oxidizing Sb-covered Si(1Â 0Â 0) in proper conditions. Physical properties of the synthesized films have been elucidated by low-energy electron diffraction, scanning tunneling microscopy and spectroscopy, and ab initio calculations. The spectroscopic results show that the band gap of Sb2O3 is 3.6Â eV around the gamma point (i.e. Î). Calculations reveal energetically favored Sb2O3(1Â 0Â 0) surface structures. The findings open a new path for the atomic-scale research of Sb2O3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 349, 15 September 2015, Pages 259-263
Journal: Applied Surface Science - Volume 349, 15 September 2015, Pages 259-263
نویسندگان
M. Yasir, M. Kuzmin, M.P.J. Punkkinen, J. Mäkelä, M. Tuominen, J. Dahl, P. Laukkanen, K. Kokko,