Negative differential resistance effect in similar right triangle graphene devices

被引：1

作者：

Wang, Lihua ^{[1
]}

Zhang, Zizhen ^{[1
]}

Zhao, Jianguo ^{[1
]}

Ding, Bingjun ^{[2
]}

Guo, Yong ^{[1
]}

机构：

[1] Shanxi Datong Univ, Sch Phys & Elect Sci, Datong 037009, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

JOURNAL OF COMPUTATIONAL ELECTRONICS | 2016年 / 15卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Density functional theory; Non-equilibrium Green's function method; Graphene; Negative differential resistance; MOLECULAR JUNCTIONS; LAYER GRAPHENE; NANORIBBONS; HETEROJUNCTIONS; RECTIFICATION; CONDUCTANCE; ELECTRODES; TRANSPORT;

D O I：

10.1007/s10825-016-0880-8

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work, nanojunctions consisting of two combined similar right triangle graphenes (SRTGs) bonded covalently with zigzag-edged graphene nanoribbon electrodes are designed, and their electron transport properties are investigated using density functional theory and non-equilibrium Green's function method. Results reveal that the SRTG-based devices exhibit an interesting negative differential resistance (NDR) effect and present a rule indicating that the NDR effect increases with the increasing sizes of both SRTGs. The electron transport properties are further tested using two combined SRTGs with different sizes. Overall, this study suggests that the SRTG-based structures are promising candidates in the design of nanoscale NDR devices.

引用

页码：1284 / 1290

页数：7

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