The structure and field emission enhancement properties of nano-structured flower-like graphitic films

被引：8

作者：

Deng, Jicai ^{[1
,2
,3
]}

Zhang, Lan ^{[4
]}

Zhang, Binglin ^{[1
,2
]}

Yao, Ning ^{[1
,2
]}

机构：

[1] Zhengzhou Univ, Educ Minist China, Phys Mat Lab, Zhengzhou 450052, Peoples R China

[2] Zhengzhou Univ, Dept Phys, Zhengzhou 450052, Peoples R China

[3] Zhengzhou Univ, Informat Engn Sch, Zhengzhou 450052, Peoples R China

[4] Zhengzhou Univ, Dept Engn Mech, Zhengzhou 450002, Peoples R China

来源：

THIN SOLID FILMS | 2008年 / 516卷 / 21期

关键词：

nano-crystalline graphitic film; field emission; microwave plasma chemical vapor deposition system;

D O I：

10.1016/j.tsf.2008.03.019

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Nano-crystalline graphite films were grown on ceramic substrates by microwave plasma chemical vapor deposition system using Fe-Ni-Cr layer as catalyst deposited by magnetron sputtering method. The microstructure and surface morphology of the nano-crystal line graphite were characterized by X-ray diffraction, Raman spectrum, Scanning electron microscope, and Transmission electron microscope. The measurement results revealed that nano-crystalline graphite film consisted of a series flower-like carbon clusters, which contains a few nano-crystal line graphitic slices. The thickness of the slice is less than 10 nm. The nano-crystalline graphitic film exhibited good field emission properties, which has the turnon field of 1.26 V/mu m and the current density of 2.1 mA/cm(2) at electric field of 2.2 V/mu m. The emission mechanism of nano-crystalline graphitic film was also studied. (c) 2008 Published by Elsevier B.V.

引用

页码：7685 / 7688

页数：4

共 15 条

[1]

Patterned growth and field emission properties of vertically aligned carbon nanotubes [J].