کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1544705 1512895 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ionization potentials and structural properties of finite-length single-walled carbon nanotubes: DFT study
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Ionization potentials and structural properties of finite-length single-walled carbon nanotubes: DFT study
چکیده انگلیسی


• We calculated vertical and adiabatic ionization potentials for a series of SWCNTs.
• The SWCNTs aromaticity influence on ionization potentials was observed.
• We examine changes in the structure of SWCNTs upon ionization.

Adiabatic and vertical ionization potentials (IPs) of single-walled carbon nanotubes (SWCNTs) as a function of length were determined by using density functional theory. The correlation between periodic oscillations of SWCNTs local aromaticity and the values of IPs was founded. In the case of short SWCNTs an appreciable gap between vertical and adiabatic IPs was observed, whereas for longer nanotubes these values are almost equal. It was also established that the HOMO electron density distribution in neutral SWCNTs affects on SWCNT lengths upon ionization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 54, December 2013, Pages 262–266
نویسندگان
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