Simple method to rapidly fabricate chain-like carbon nanotube films and its field emission properties

作     者：Zhi-yuan Wu Shuang-qi Hu Zhi-qian Wang 

作者机构：Chemical Industry and Ecology Institute North University of China Taiyuan 030051 China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2010年第17卷第3期

页      面：371-375页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 07[理学] 08[工学] 070205[理学-凝聚态物理] 0806[工学-冶金工程] 0708[理学-地球物理学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：carbon nanotube (CNT) chain-like film microwave plasma-enhanced chemical vapor deposition (MPCVD) field emission 

摘      要：A simple process to fabricate chain-like carbon nanotube （CNT） films by microwave plasma-enhanced chemical vapor deposition （MPCVD） was developed successfully. Prior to deposition, the Ti/Al2O3 substrates were ground with Fe-doped SiO2 powder. The nano-structure of the deposited films was analyzed by scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, and Raman spectroscopy. The field electron emission characteristics of the chain-like carbon nanotube films were measured under the vacuum of 10-5 Pa. The low turn-on field of 0.80 V/μm and the emission current density of 8.5 mA/cm2 at the electric field of 3.0 V/μm are obtained. Based on the above results, chain-like carbon nanotube films probably have important applications in cold cathode materials and electrode materials.