کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9817877 | 1518772 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Formation of carbon nanofibers from decacyclene by ion beam irradiation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Formation of carbon nanofibers from decacyclene by ion beam irradiation Formation of carbon nanofibers from decacyclene by ion beam irradiation](/preview/png/9817877.png)
چکیده انگلیسی
Amorphous carbon nanofibers with lengths of 1-20 μm, uniform diameters of 20-100 nm were generated by ion beam-irradiation of decacyclene whiskers that were prepared on a flat plate of any material during vapor-deposition of decacyclene, a polycyclic aromatic compound, in vacuum for only a few minutes. The length of the whiskers did not depend on the duration of the vapor-deposition, whereas the number density of the whiskers increased with increasing the duration and reached 6.9 Ã 107 cmâ2 at 4.5 min after starting the vapor-deposition. Irradiation of more than 1016 ions/cm2 with a 200 keV N+ ion beam converted the whiskers to carbon nanofibers with the electrical conductivity comparable to that of graphite. This novel method of preparation is advantageous for aligning the fibers on a desired location, since the fibers are generated only on the irradiated part at ambient temperature without catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 236, Issues 1â4, July 2005, Pages 474-481
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 236, Issues 1â4, July 2005, Pages 474-481
نویسندگان
Takahide Kimura, Hitoshi Koizumi, Hiroshi Kinoshita, Tsuneki Ichikawa,