Breakdown current density of graphene nanoribbons
Breakdown current density of graphene nanoribbons
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DOI：
10.1063/1.3147183
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发表时间：
2009-06-15
影响因子：
4
通讯作者：
Meindl, James D.
中科院分区：
文献类型：
--
作者：
Murali, Raghunath;Yang, Yinxiao;Meindl, James D.
石墨烯纳米带（GNRs）的宽度低至16 nm的特征在于其载流能力。发现GNRs表现出令人印象深刻的击穿电流密度，在10（8）A/cm（2）的数量级。击穿电流密度被发现有一个倒数关系GNR电阻率和数据拟合点焦耳加热作为击穿的可能机制。GNR的上级载流能力对于其在片上电互连中的应用将是有价值的。发现亚20 nm石墨烯带的热导率大于1000 W/m K。
Graphene nanoribbons (GNRs) with widths down to 16 nm have been characterized for their current-carrying capacity. It is found that GNRs exhibit an impressive breakdown current density, on the order of 10(8) A/cm(2). The breakdown current density is found to have a reciprocal relationship to GNR resistivity and the data fit points to Joule heating as the likely mechanism of breakdown. The superior current-carrying capacity of GNRs will be valuable for their application in on-chip electrical interconnects. The thermal conductivity of sub-20 nm graphene ribbons is found to be more than 1000 W/m K.