24小时热门版块排行榜    

查看: 1481  |  回复: 6

luoxinfire

金虫 (正式写手)

[交流] 20121019[Nature Nanotechnology]最新石墨烯文章(含补充资料及endnote索引文件) 已有6人参与

Nature Nanotechnology | Letter

Voltage-dependent conductance of a single graphene nanoribbon

Nature Nanotechnology. doi:10.1038/nnano.2012.169

Authors: Matthias Koch, Francisco Ample, Christian Joachim & Leonhard Grill


Graphene nanoribbons could potentially be used to create molecular wires with tailored conductance properties. However, understanding charge transport through a single molecule requires length-dependent conductance measurements and a systematic variation of the electrode potentials relative to the electronic states of the molecule1, 2. Here, we show that the conductance properties of a single molecule can be correlated with its electronic states. Using a scanning tunnelling microscope, the electronic structure of a long and narrow graphene nanoribbon, which is adsorbed on a Au(111) surface, is spatially mapped and its conductance then measured by lifting the molecule off the surface with the tip of the microscope. The tunnelling decay length is measured over a wide range of bias voltages, from the localized Tamm states over the gap up to the delocalized occupied and unoccupied electronic states of the nanoribbon. We also show how the conductance depends on the precise atomic structure and bending of the molecule in the junction, illustrating the importance of the edge states and a planar geometry.

http://www.nature.com/nnano/jour ... nnano.2012.169.html
回复此楼

» 本帖附件资源列表

  • 欢迎监督和反馈:小木虫仅提供交流平台,不对该内容负责。
    本内容由用户自主发布,如果其内容涉及到知识产权问题,其责任在于用户本人,如对版权有异议,请联系邮箱:xiaomuchong@tal.com
  • 附件 1 : Voltage-dependentconductanceofasinglegraphenenanoribbon.zip
  • 2012-10-22 17:57:47, 5.96 M

» 收录本帖的淘帖专辑推荐

先进材料 科研资料 石墨烯制备及应用

» 猜你喜欢

» 本主题相关商家推荐: (我也要在这里推广)

» 本主题相关价值贴推荐,对您同样有帮助:

睡虫不醒今朝有觉今朝睡红尘无忧明日有风明日抽
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
谢谢分享
2楼2012-10-23 08:48:13
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
3楼2012-10-24 08:06:56
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
谢谢分享
4楼2012-11-14 09:36:51
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
5楼2012-12-29 10:52:13
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
6楼2012-12-30 10:40:05
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

daileilei

木虫 (初入文坛)

看看   学习
天道酬勤
7楼2013-01-03 21:20:23
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 luoxinfire 的主题更新
普通表情 高级回复 (可上传附件)
信息提示
请填处理意见