期刊
APL MATERIALS
卷 1, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4824038
关键词
-
资金
- National Science Foundation [DMR-1204924]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1204924] Funding Source: National Science Foundation
We show that for metal/graphene/dielectric sandwich structures, charge doping in graphene depends on both the work functions of the metal and the dielectric. Using C-1s core level photoemission spectroscopy we determine the charge doping in graphene for one-sided metal contacts as well as for sandwich structures that are commonly used in graphene devices. The measured Fermi-level shifts are in good agreement with a model that predicts that the difference in charge doping for graphene on a metal compared to graphene sandwiched between a metal and dielectric is given by Delta E-F approximate to 0.44 x root(Phi(metal) - Phi(dielectric)). (C) 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
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。
推荐
暂无数据