کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8034847 | 1518031 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Performance of field emission cathodes prepared from diamond nanoparticles
ترجمه فارسی عنوان
عملکرد کاتد های انتشار میدان تولید شده از نانوذرات الماس
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کلمات کلیدی
انتشار میدان، پوشش اسپین، انلینگ، شبکه کاربید تیتانیوم، نانوذرات الماس، نانوذرات تیتانیوم،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Nano-diamond field emission cathodes were fabricated using a two-step technique. A mixture of nano-diamond and nano-Ti powders was coated onto a Ti substrate using a spin-coating process, followed by the application of an annealing treatment to form a TiC phase. The effects of the annealing temperature and the number of coating layers on the electron field emission properties of the as-fabricated field emission cathodes were investigated. The samples fabricated under different conditions were analyzed by Raman spectroscopy, X-ray diffraction, and scanning electron microscopy. The differences in terms of the electron field emission properties were explained by a TiC network model. A higher temperature is necessary to form a continuous TiC network when a thicker coating is used on the field emission cathode. In contrast, for the thinner coating, a relatively low temperature is sufficient to form such a TiC network. Only a continuous TiC network coating can facilitate the passage of electrons through the coating and lead to emission.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 574, 1 January 2015, Pages 10-14
Journal: Thin Solid Films - Volume 574, 1 January 2015, Pages 10-14
نویسندگان
C.X. Zhai, Z.Y. Zhang, L.L. Zhao, X.W. Wang, W. Zhao,