کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1808443 1525161 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High frequency conductivity of hot electrons in carbon nanotubes
ترجمه فارسی عنوان
هدایت الکتریکی داغ در نانولوله های کربنی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
High frequency conductivity of hot electrons in undoped single walled achiral Carbon Nanotubes (CNTs) under the influence of ac-dc driven fields was considered. We investigated semi-classically Boltzmann's transport equation with and without the presence of the hot electrons' source by deriving the current densities in CNTs. Plots of the normalized current density versus frequency of ac-field revealed an increase in both the minimum and maximum peaks of normalized current density at lower frequencies as a result of a strong injection of hot electrons. The applied ac-field plays a twofold role of suppressing the space-charge instability in CNTs and simultaneously pumping an energy for lower frequency generation and amplification of THz radiations. These have enormous promising applications in very different areas of science and technology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 488, 1 May 2016, Pages 83-87
نویسندگان
, , , , , ,