کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1611664 | 1516303 | 2014 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Elastic-peak electron spectroscopy (EPES) studies of ZnO single crystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Electron transport in both ZnO(0Â 0Â 0Â 1)-Zn and ZnO(0Â 0Â 0-1)-O bulk single crystals was studied using the elastic-peak electron spectroscopy (EPES) measurements. The inelastic mean free path (IMFP) was evaluated from EPES using both Ni and Au standards in the energy range 200-2000Â eV, and compared with IMFPs calculated from the predictive TPP-2Â M formula for the measured composition of both single crystal surfaces. In the electron energy range from 1 to 2Â keV, the IMFPs were found to be 34% larger for the ZnO(0Â 0Â 0Â 1)-Zn crystal surface than for the ZnO(0Â 0Â 0-1)-O crystal surface, and considerably larger than the IMFPs obtained from the TPP-2Â M predictive formula. At energies lower than 1Â keV, a good agreement between the corresponding IMFPs values was found. However, the electron transport at larger energies seems to be affected by different bulk structure of both crystals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 590, 25 March 2014, Pages 553-556
Journal: Journal of Alloys and Compounds - Volume 590, 25 March 2014, Pages 553-556
نویسندگان
M. Krawczyk, W. Lisowski, J.W. Sobczak, A. KosiÅski, A. Jablonski,