• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical and quantum electronics >Optical properties of chiral graphene nanoribbons: a first principle study
【24h】

Optical properties of chiral graphene nanoribbons: a first principle study

机译：手性石墨烯纳米带的光学性质：第一个原理研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recent successes in unzipping carbon nanotubes have introduced a new member of graphene nanoribbons (GNRs) family known as chiral GNRs. In this paper, optical properties of chiral GNRs both in longitudinal and transverse polarizations of incident beam have been studied using Density Functional Theory. We have shown that the selection rules, which were previously reported for armchair and zigzag GNRs, are no longer valid due to breaking symmetries in this new family. However, we have demonstrated that the edge states play a critical role in the dielectric constant. It has been shown that, depending on the polarization of incident beam the absorption peaks are different, although they are spread in the same energy range. We also suggested that the absorption energy range is sensitive to the chiral vectors and the light polarization. Due to breaking symmetries in chiral GNRs, absorption peaks are changed becoming approximately 1000 nm, thus a new potential of GNRs for optoelectronic devices is introduced.
机译：碳纳米管解压缩的最新成功引入了一种新的石墨烯纳米带（GNR）系列成员，称为手性GNR。本文利用密度泛函理论研究了手性GNRs在入射光束的纵向和横向偏振中的光学性质。我们已经证明，以前针对扶手椅和锯齿形GNR报告的选择规则由于此新家族中对称性的破坏而不再有效。但是，我们已经证明，边缘状态在介电常数中起着至关重要的作用。已经表明，尽管它们在相同的能量范围内散布，但根据入射光束的偏振，吸收峰是不同的。我们还建议吸收能量范围对手性矢量和光偏振敏感。由于手性GNR中对称性的破坏，吸收峰改变为约1000nm，因此引入了用于光电器件的GNR的新潜力。

著录项

  • 来源
    《Optical and quantum electronics》 |2015年第10期|3289-3300|共12页
  • 作者

    M. Berahman; M. Asad; M. Sanaee; M. H. Sheikhi;

  • 作者单位

    Nanotechnology Research Institute, Shiraz University, Shiraz, Iran,School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran;

    Nanotechnology Research Institute, Shiraz University, Shiraz, Iran,School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran;

    Nanotechnology Research Institute, Shiraz University, Shiraz, Iran,School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran;

    Nanotechnology Research Institute, Shiraz University, Shiraz, Iran,School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Optical properties; Chiral graphene nanoribbons; Graphene;

    机译：光学性质;手性石墨烯纳米带;石墨烯;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号