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| Zigzag电极Armchair边缘石墨烯纳米带电子输运研究 | |
| 引用本文： | 王利光,陈蕾,闫雨桐,TERENCE K S W,TSUKADA M.Zigzag电极Armchair边缘石墨烯纳米带电子输运研究[J].黑龙江大学自然科学学报,2011,28(5):733-736. |
| 作者姓名： | 王利光 陈蕾 闫雨桐 TERENCE K S W TSUKADA M |
| 作者单位： | 1. 江南大学理学院,无锡,214122 2. 新加坡南洋理工大学电气与电子工程学院,新加坡,636798 3. 东北大学世界先进材料研究中心,仙台980 -8577 |
| 基金项目： | 国家重点基础研究发展规划项目(2008CB716204); 教育部国际合作研究项目(20060360563); 江苏省自然科学基金项目(BK2008097); 中央高校基础科研专项资金项目(JUSRP31005) |
| 摘 要： | 利用基于密度泛函的非平衡格林函数方法,对Zigzag电极Armchair边缘的石墨烯纳米带的电子输运、态密度和V-I特性进行了理论计算,研究发现这一结构的纳米石墨烯带具有明显的半导体特征,其态密度与电子传输谱间具有较好的对应关系,电子传输谱与电子入射能量密切相关,并显现能级量子化和电子输运过程中的库仑阻塞特性. |
| 关 键 词： | 石墨烯带 密度泛函 态密度 电子输运 |
Electron transmission of nano graphene ribbon with armchair edge and zigzag electrodes |
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| WANG Li-guang,CHEN Lei,YAN Yu-tong,TERENCE K S W,TSUKADA M.Electron transmission of nano graphene ribbon with armchair edge and zigzag electrodes[J].Journal of Natural Science of Heilongjiang University,2011,28(5):733-736. | |
| Authors: | WANG Li-guang CHEN Lei YAN Yu-tong TERENCE K S W TSUKADA M |
| Institution: | WANG Li-guang 1,CHEN Lei1,YAN Yu-tong1,TERENCE K S W2,TSUKATA M3 (1.School of Science,Jiangnan University,Wuxi 214122,China,2.School of Electrical and Electronic Engineering,Nanyang Technological University,Singapore 636798,3.WPI-AIMR,Tohoku University,Sendai 980-8577,Japan) |
| Abstract: | Non-equilibrium Green functions method based on the density functional theory is adopted to calculate electron transmission,density of states,and V-I property of the nano graphene ribbon with the arm-chair edge and the zigzag electrodes.It is found that the graphene nano ribbon shows the semiconductor characteristics obviously,a good correspondence between the density of state and the electronic transmission,the transmission spectrum relates closely to the incident energy of the electrons,and shows the quan... |
| Keywords: | graphene ribbon density functional electron transmission density of state |
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