کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10714411 | 1025587 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure and optical features of silicon carbide nanocrystals confined in alumina matrices
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structure and optical features of silicon carbide nanocrystals confined in alumina matrices Structure and optical features of silicon carbide nanocrystals confined in alumina matrices](/preview/png/10714411.png)
چکیده انگلیسی
Thin films based on silicon carbide and alumina were synthesized by means of rf-sputtering using a co-deposition process. Several nanostructures were created which consist of thin films (â¼200Â nm thick) with homogeneous distribution of SiC nanocrystals (â¼5Â nm mean diameter) in the host alumina matrices. Characterization methods including X-ray photoelectrons spectroscopy (XPS), UV-vis absorption and photoluminescence (PL) were used to identify the involved structures, compositions and optical features of these nanostructures. Thus, XPS investigations were relevant to point out the involved chemical bonding in the core SiC nanocrystals and in the host alumina environments. Additionally, mixed bonding such as Si-O-C was also shown and seems to correlate with the SiC-alumina interfaces. Optical properties of the nanostructures films such as UV-vis absorption and photoluminescence (PL) were measured in representative samples and compared to simulated PL responses obtained by a theoretical model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 406, Issue 23, 1 December 2011, Pages 4500-4504
Journal: Physica B: Condensed Matter - Volume 406, Issue 23, 1 December 2011, Pages 4500-4504
نویسندگان
A. Bouifoulen, M. Edely, A. Kassiba, M. Makowska-Janusik, A. Outzourhit, J. Szade, A. Oueriagli,