Field emission study of CNTs on metal tips  

作　　者：GUO DaBo YUAN Guang SONG CuiHua GU ChangZhi WANG Qiang 

机构地区：[1]Deparlment of Physics, Ocean University of China, Qingdao 266100, China [2]State Key Laboratory of Surface Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

出　　处：《Chinese Science Bulletin》2008年第1期17-21,共5页

基　　金：the 973 Program of the Ministry of Science and Technology of China (Grant No. 2003CB314702)

摘　　要：The field emission characteristics of multiwalled carbon nanotubes grown on metal tips are studied at various temperatures. It is found that emission current at a given applied electric field increased with the temperature, and the stability of the current did not change. The dependence upon temperature varies quite differently with the metal substrates. This may result from the asymmetry of the CNTs and the interface effect between CNT and underlay.The field emission characteristics of multiwalled carbon nanotubes grown on metal tips are studied at various temperatures. It is found that emission current at a given applied electric field increased with the temperature, and the stability of the current did not change. The dependence upon temperature varies quite differently with the metal substrates. This may result from the asymmetry of the CNTs and the interface effect between CNT and underlay.

关 键 词：场发射 碳纳米管 温度特性 电场 

分 类 号：TB383[一般工业技术—材料科学与工程]