First-principles Study of the Electronic Transport Properties of Edge-modified Symmetric and Asymmet

• 作 者: Yipeng An Zhongqin Yang
• 机 构: State Key Laboratory of Surface Physics and Key Laboratory for Computational Physical Sciences(MOE)&
• 出 处: 中国物理学会2011年秋季学术会议
• 发表日期: 2011年9期
• 关键词: graphene electronic transport nanoelectronic devices

The electronic transport properties of the symmetric and asymmetric zigzag graphene nanoribbons based nanostructures whose edges are modified by the triangle uplifts are studied by using the first-principles technique.It is found that,for the symmetric zigzag graphene nanoribbons,it increases the conductance when modifying the triangle uplift at only one edge,and the I-V curve displays the negative differential resistance characteristic.