Paper Title:
First-Principles Study of Optical Properties of Single-Wall Silicon Nanotubes
  Abstract

The optical properties of two kinds of single-wall silicon nanotubes (sw-SiNTs) [(n, 0) and (n, n)] with small diameters are investigated by using the first-principles method. For these two kinds of nanotubes, the absorptive part  of dielectric functions exhibits a broad band from 4 to 8eV in the region of 4-11eV, which is attributed to the transition of the  band to the * and  bands. Particularly, another small peak (inter- band transition) at 1.2-2.3 eV in the low-energy region is also identified. In addition, the loss function of these nanotubes are calculated and discussed.

  Info
Periodical
Advanced Materials Research (Volumes 105-106)
Edited by
Wei Pan and Jianghong Gong
Pages
234-237
DOI
10.4028/www.scientific.net/AMR.105-106.234
Citation
X. J. Kou, C. B. Zhu, J. C. Fu, "First-Principles Study of Optical Properties of Single-Wall Silicon Nanotubes", Advanced Materials Research, Vols. 105-106, pp. 234-237, 2010
Online since
April 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xian Gui Ni, Z. Zhang, Y. Wang, Xiu Xi Wang
Abstract:Three armchair single-walled carbon nanotubes (SWCNTs) (7, 7), (12, 12), (17, 17) and three zigzag SWCNTs (12, 0), (16, 0), (20, 0) are...
1021
Authors: Yan Jin Wang, Lie Yan Wang, Shu Bo Wang, Ling Wu, Qing Ze Jiao
Abstract:a self-consistent-charge density-functional tight-binding method was employed to study the electronic and atomic structures of full...
722
Authors: Li Bin Shi, Hong Kuan Yuan
Chapter 8: Energy Materials
Abstract:Using the first principle method based on density functional theory (DFT), we have studied the stability, structure, and electronic...
3489
Authors: Hong Xia Wang, Cheng Lai Yang, You Zhang Zhu, Ni Chen Yang
Chapter 1: Advanced Technologies and Researches in Materials Science
Abstract:The electronic structure expression of graphene was derived using tight-binding approxi-mation method. According to periodic boundary...
199