首页> 外文OA文献 >Few layer graphene on SiC, pyrolitic graphite and graphene: a Raman scattering study
【2h】

Few layer graphene on SiC, pyrolitic graphite and graphene: a Raman scattering study

机译:siC,热解石墨和石墨烯上的少量石墨烯:拉曼   散射研究

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The results of micro-Raman scattering measurements performed on threedifferent ``graphitic'' materials: micro-structured disks of highly orientedpyrolytic graphite, graphene multi-layers thermally decomposed from carbonterminated surface of 4H-SiC and an exfoliated graphene monolayer arepresented. Despite its multi-layer character, most parts of the surface of thegraphitized SiC substrates shows a single-component, Lorentzian shape, doubleresonance Raman feature in striking similarity to the case of a single graphenemonolayer. Our observation suggests a very weak electronic coupling betweengraphitic layers on the SiC surface, which therefore can be considered to begraphene multi-layers with a simple (Dirac-like) band structure.
机译:呈现了在三种不同的``石墨''材料上进行的微拉曼散射测量结果:高度取向的热解石墨的微结构盘,从4H-SiC的碳封端表面热分解的石墨烯多层和剥落的石墨烯单层。尽管具有多层特性,但石墨化SiC衬底的大部分表面仍具有单组分洛伦兹形状,双共振拉曼特征,与单个石墨烯单层的情况极为相似。我们的观察表明,SiC表面上的石墨层之间的电子耦合非常弱,因此可以认为这是具有简单(类狄拉克)能带结构的石墨烯多层。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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