Optical excitations in carbon nanoscrolls

To Sing Li, Ming Fa Lin, Shang Chou Chang, Hsien Ching Chung

研究成果: Article同行評審

14 引文 斯高帕斯(Scopus)

摘要

The optical properties of carbon nanoscrolls in the presence of uniform electric fields are investigated by using gradient approximation. Absorption spectra exhibit rich prominent peaks structures, which is caused by one-dimensional sub-bands. The numbers, spectral intensities, and energies of the absorption peaks are strongly dependent on the geometry and the electric field strength. There exists an optical selection rule originating from the two equivalent sublattices in graphene. The two-fold degeneracy of the absorption peaks can be lifted by the inter-wall interactions or the electric field. The variations of the absorption peak energies with the geometry and field strength are also explored. These theoretical predictions can be validated by optical absorption measurements.

原文English
頁(從 - 到)6138-6144
頁數7
期刊Physical Chemistry Chemical Physics
13
發行號13
DOIs
出版狀態Published - 2011 四月 7

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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