| 掺杂armchair石墨烯纳米带电子结构和输运性质的研究 |
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| 引用本文： | 安丽萍,刘念华,刘春梅,刘正方.掺杂armchair石墨烯纳米带电子结构和输运性质的研究[J].福州大学学报(自然科学版),2011,39(4):533-538. |
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| 作者姓名： | 安丽萍 刘念华 刘春梅 刘正方 |
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| 作者单位： | 南昌大学高等研究院;燕山大学物理系; |
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| 基金项目： | 国家自然科学基金资助项目(10832005) |
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| 摘 要： | 基于第一性原理计算,研究了B/N掺杂对宽度为N(a)=3p+2=11的扶手椅(Armchair)型石墨烯纳米带电子结构和输运性质的影响.杂质的存在使得扶手椅型石墨烯纳米带的能隙增大,并在能隙中出现了一条局域的杂质态能带,杂质的位置也影响其能带结构.另外,杂质的存在还引起输运过程中的电子共振散射,其特点与掺杂种类、掺杂位...
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| 关 键 词： | 扶手椅型石墨烯纳米带 杂掺 电子结构 输运性质 |
The study of the electronic structure and transport properties of armchair graphene nanoribbons with dopant |
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| AN Li-ping,LIU Nian-hu,LIU Chun-mei,LIU Zheng-fang.The study of the electronic structure and transport properties of armchair graphene nanoribbons with dopant[J].Journal of Fuzhou University(Natural Science Edition),2011,39(4):533-538. |
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| Authors: | AN Li-ping LIU Nian-hu LIU Chun-mei LIU Zheng-fang |
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| Institution: | AN Li-ping1,2,LIU Nian-hua1,LIU Chun-mei1,LIU Zheng-fang1(1.Institute for Advanced Study,Nanchang University,Nanchang,Jiangxi 330031,China,2.Department of Physics,Yanshan University,Qinhuangdao,Hebei 066004,China) |
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| Abstract: | The electronic structure and transport properties of armchair graphene nanoribbons(AGNRs) with B/N dopant are studied by using the first-principles calculation.It is shown that because of the existence of the dopant,there is an impurity band in the energy gap of armchair graphene nanoribbons and their energy gaps increase.The band structures depend also on the position of the dopant.In addition,the existence of the dopant yields resonant backscattering in the charge transport,whose features are strongly dep... |
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| Keywords: | armchair graphene nanoribbons dopant electronic structure transport properties |
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