4.8 Article

Unusual Angular Dependence of the Raman Response in Black Phosphorus

期刊

ACS NANO
卷 9, 期 4, 页码 4270-4276

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsnano.5b00698

关键词

black phosphorus; phosphorene; polarized Raman spectroscopy; linear dichroism; electron-phonon coupling

资金

  1. Fapesp (SPEC) [2012/50259-8]
  2. Brazilian Nanocarbon Institute of Science and Technology (INCT/Nanocarbono)
  3. CNPq
  4. National Research Foundation, Prime Minister's Office, Singapore, under its Medium Sized Centre Programme
  5. CRP award Novel 2D materials with tailored properties: beyond graphene [R-144-000-295-281]

向作者/读者索取更多资源

Anisotropic materials are characterized by a unique optical response, which is highly polarization-dependent. Of particular interest are layered materials formed by the stacking of two-dimensional (2D) crystals that are naturally anisotropic in the direction perpendicular to the 2D planes. Black phosphorus (BP) is a stack of 213 phosphorene crystals and a highly anisotropic semiconductor with a direct band gap. We show that the angular dependence of polarized Raman spectra of BP is rather unusual and can be explained only by considering complex values for the Raman tensor elements. This result can be traced back to the electron photon and electron-phonon interactions in this material.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据