Thermionic electron emission in the 1D edge-to-edge limit

doi:10.1088/1674-1056/ac464d

IMR OpenIR

	Thermionic electron emission in the 1D edge-to-edge limit
	Zhang, Tongyao 1,2; Wang, Hanwen 3; Xia, Xiuxin 3; Qin, Chengbing 2,4; Li, Xiaoxi 1,2
通讯作者	Li, Xiaoxi(xiaoxili1987@gmail.com)
	2022-04-01
发表期刊	CHINESE PHYSICS B
ISSN	1674-1056
卷号	31 期号:5 页码:5
摘要	Thermionic emission is a tunneling phenomenon, which depicts that electrons on the surface of a conductor can be pulled out into the vacuum when they are subjected to high electrical tensions while being heated hot enough to overtake their work functions. This principle has led to the great success of the so-called vacuum tubes in the early 20th century. To date, major challenges still remain in the miniaturization of a vacuum channel transistor for on-chip integration in modern solid-state integrated circuits. Here, by introducing nano-sized vacuum gaps (similar to 200 nm) in a van der Waals heterostructure, we successfully fabricated a one-dimensional (1D) edge-to-edge thermionic emission vacuum tube using graphene as the filament. With the increasing collector voltage, the emitted current exhibits a typical rectifying behavior, with the maximum emission current reaching 200 pA and an ON-OFF ratio of 10(3). In addition, it is found that the maximum emission current is proportional to the number of the layers of graphene. Our results expand the research of nano-sized vacuum tubes to an unexplored physical limit of 1D edge-to-edge emission, and hold great promise for future nano-electronic systems based on it.
关键词	vacuum microelectronics thermionic emission graphene electronic transport in nanoscale materials and structures
资助者	National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Joint Research Fund of Liaoning-Shenyang National Laboratory for Materials Science ; IMR Innovation Fund
DOI	10.1088/1674-1056/ac464d
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[12004389] ; National Natural Science Foundation of China[12004288] ; National Natural Science Foundation of China[12104462] ; China Postdoctoral Science Foundation[2020M68036] ; China Postdoctoral Science Foundation[2021T140430] ; Joint Research Fund of Liaoning-Shenyang National Laboratory for Materials Science[2019JH3/30100031] ; IMR Innovation Fund[2021-PY17]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000782501100001
出版者	IOP Publishing Ltd
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/172967
专题	中国科学院金属研究所
通讯作者	Li, Xiaoxi
作者单位	1.Shanxi Univ, Inst Optoelect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China 2.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Shanxi Univ, Inst Laser Spect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Tongyao,Wang, Hanwen,Xia, Xiuxin,et al. Thermionic electron emission in the 1D edge-to-edge limit[J]. CHINESE PHYSICS B,2022,31(5):5.
APA	Zhang, Tongyao,Wang, Hanwen,Xia, Xiuxin,Qin, Chengbing,&Li, Xiaoxi.(2022).Thermionic electron emission in the 1D edge-to-edge limit.CHINESE PHYSICS B,31(5),5.
MLA	Zhang, Tongyao,et al."Thermionic electron emission in the 1D edge-to-edge limit".CHINESE PHYSICS B 31.5(2022):5.