کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10640007 | 995864 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Si-O-C nanotubes from pyrolyzing polycarbosilane in a mesoporous template
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
Si-O-C nanotubes were produced by pyrolyzing polycarbosilane (PCS) inside cylindrical pores of anodized aluminum oxide (AAO) templates between 900 and 1100 °C. The diameters of these nanotubes were between 250 and 350 nm. The Si-O-C nanotubes were analyzed by SEM, TEM, EDS, FTIR and Raman spectroscopy. The nanotubes were composed of a mixture of oxycarbide glass and carbon clusters. The ratio of Si:O:C in the nanotubes was about 1:0.97:3.3. Electron emission of the Si-O-C nanotubes was investigated by the current-voltage characterization at an anode-to-specimen distance of 67 μm. The electric field for obtaining electron emission to a current density of 10â4 A/cm2 from the Si-O-C nanotubes was about 7 V/μm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 122, Issue 3, 25 September 2005, Pages 240-245
Journal: Materials Science and Engineering: B - Volume 122, Issue 3, 25 September 2005, Pages 240-245
نویسندگان
Hsiao-Mei Yen, Shyankay Jou, Cheng-Jye Chu,