In-Situ Growth of Graphene on a Copper Tip and Its Field Emission Property

doi:10.7652/xjtuxb201508002

您当前的位置：

首页 >

文章列表页 >

In-Situ Growth of Graphene on a Copper Tip and Its Field Emission Property

更新时间：2025-07-09

- In-Situ Growth of Graphene on a Copper Tip and Its Field Emission Property
- Vol. 49, Issue 8, Pages: 6-10(2015)
- 作者机构：
  
  西安交通大学电子与信息工程学院,西安,710071
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201508002
  CLC： TN304.9
- Online First：10 August 2015，
  
  Published：2015
- 稿件说明：
移动端阅览
In-Situ Growth of Graphene on a Copper Tip and Its Field Emission Property[J]. 2015, 49(8): 6-10.
DOI：

In-Situ Growth of Graphene on a Copper Tip and Its Field Emission Property[J]. 2015, 49(8): 6-10. DOI： 10.7652/xjtuxb201508002.

摘要

针对非高熔点金属针尖在场发射中表面原子易升华的问题

通过在亚微米量级的铜尖表面原位生长石墨烯来抑制铜原子升华

以提高其场发射稳定性能。首先利用三氯化铁溶液将铜丝进行腐蚀

得到亚微米量级别的高曲率铜尖

然后通过化学气相沉积法在高曲率的铜尖表面原位生长获得了石墨烯

得到了一种新的冷阴极结构——铜尖/石墨烯结构。对覆盖石墨烯前后的铜尖进行场发射测试

结果发现

石墨烯的存在使铜尖的开启场强从4 V/μm降低到2.5 V/μm

并且提高了发射电流的稳定性。该研究结果对于在亚微米尺度铜表面生长石墨烯以及利用石墨烯改善金属针尖的场发射特性均有参考价值

为非高熔点金属制作场发射尖端提供了一种可能性。

Abstract

Metal tips with low melting point suffer from sublimation during field emission. A layer of graphene in-situ on a submicron copper tip is synthesized to suppress the sublimation and to improve the field emission stability. A copper wire is etched in ferric trichloride solution to get a copper tip with submicron radius. Then a graphene layer is successfully synthesized on the copper tip by chemical vapor deposition. The copper tip is tested pre and after graphene growth. The field emission tests show that after the graphene growth

the turn-on field of the copper tip reduces from 4 V/μm to 2.5 V/μm while the current stability is improved. The results reported here is valuable for both the growth of graphene on a copper surface of sub-micron area and the improvement of field emission of graphene decorated metal tips.

关键词

Keywords

references

GEIM A K, NOVOSELOV K S. The rise of graphene [J]. Nature Materials, 2007, 6(3): 183-191.

NOVOSELOV K S, FALKO V I, COLOMBO L, et al. A roadmap for graphene [J]. Nature, 2007, 490: 192-200.

HOMMELHOFF P, SORTAIS Y, AGHAJANI A, et al. Field emission tip as a nanometer source of free electron femtosecond pulses [J]. Physical Review Letters, 2006, 96(7): 77401.

WU Zhongshuai, PEI Songfeng, REN Wencai, et al. Field emission of single-layer graphene films prepared by electrophoretic deposition [J]. Advanced Materials, 2009, 21(17): 1756-1760.

CHEN Jiangtao, LI Jun, YANG Juan, et al. The hysteresis phenomenon of the field emission from the graphene film [J]. Applied Physics Letters, 2011, 99(17): 173104.[6] WEI Xianlong, CHEN Qing, PENG Lianmao. Electron emission from a two-dimensional crystal with atomic thickness [J]. API Advances, 2013, 3(4): 214-217.

YUSOP M Z, KALITA G, YAAKOB Y, et al. Field emission properties of chemical vapor deposited individual graphene [J]. Applied Physics Letters, 2014, 104(9): 93501.

XIAO Zhiming, SHE Juncong, DENG Shaozhi, et al. Field electron emission characteristics and physical mechanism of individual single-layer graphene [J]. ACS Nano, 2010, 4(11): 6332-6336.

HALLAM T, COLE M T, MILNE W I, et al. Field emission characteristics of contact printed graphene fins [J]. Small, 2014, 10(1): 95-99.

GEIM A K. Graphene: status and prospects [J]. Science, 2009, 324: 1530-1534.

DAN Y P, LU Y, KYBERT N J, et al. Intrinsic response of graphene vapor sensors [J]. Nano Letters, 2009, 9(4): 1472-1475.

王文荣, 周玉修, 李铁, 等. 高质量大面积石墨烯的化学汽相沉积制备方法研究 [J]. 物理学报, 2012, 61(3): 510-516.

WENG Wenrong, ZHOU Yuxiu, LI Tie, et al. Research on synthesis of high-quality and large-scale graphene films by chemical vapor deposition [J]. Acta Physica Sinica, 2012, 63(3): 510-516.

LI Xuesong, CAI Weiwei, COLOMBO L, et al. Evolution of graphene growth on Ni and Cu by carbon isotope labeling [J]. Nano Letters, 2009, 9(12): 4268-4272.

李昕, 张娟, 李全福, 等. 面向集成电路的大尺寸单晶石墨烯的可控制备方法 [J]. 西安交通大学学报, 2014, 48(6): 103-109.

LI Xin, ZHANG Juan, LI Quanfu, et al. A controllable preparation method for IC-oriented large scale single crystal graphene [J]. Journal of Xi'an Jiaotong University, 2014, 48(6): 103-109.

李海雁, 窦菊英. 腐蚀阴极尖端的新方法 [J]. 真空电子技术, 2004(6): 59-61.

LI Haiyan, DOU Juying. A new method of corroding cathode point [J]. Vacuum Electronics, 2004(6): 59-61.

LI Xuesong, CAI Weiwei, AN J H, et al. Large-area synthesis of high-quality and uniform graphene films on copper foils [J]. Science, 2009, 324: 1312-1314.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

不同堆叠结构石墨烯对C2H6O的吸附机制研究

丝网印刷ZnO纳米锥的浆料制备及场发射特性研究

Numerical Simulation of the Energy Conversion Process in Thermoacoustic Engines with Different Stack Materials

Influence of Structural Parameters on the Summer Operational Characteristics of a Three-Tower-in-One Indirect Air-Cooling System

Electrothermal Coupling Research on the Evolutionary Law of Anti-Corona Performance for High-Altitude Air-Cooled Generators

Related Author

邱海峰

李雪

王欢

滕建强

雷绍充

李昕

刘卫华

韩传余

Related Institution

中国石化西北油田分公司石油工程技术研究院

西安交通大学电子与信息学部

⁰