Uniform arrays of carbon nanotubes applied in the field emission devices

查看全文 作　　者：LI [1]DeTian;CHENG [1]YongJun;CAI [1]Min;YAO [2]JinLi;CHANG [2]Peng

机构地区：[1]Lanzhou Institute of Physics;[2]Key Laboratory for Magnetism and Magnetic Materials of MOE,Lanzhou University

出　　处：《Science China(Physics,Mechanics & Astronomy)》索引2013年第56卷第11期,共4页

基　　金：supported by China National Funds for Distinguished Young Scientists(Grant No.61125101);the Science and Technology on Vacuum&Cryogenics Technology and Physics Laboratory 摘　　要：Carbon nanotubes(CNTs)were grown into anodic aluminum oxide(AAO)channels by chemical vapor deposition(CVD)using C2H2/N2mixtures as feeding gas,which can be used as field emitters.The bottom surface of AAO template was etched slightly and the tips of CNTs were explored as the field emission arrays which were uniform and vertical.Field emission characterization showed a low turn-on field about 3.25 V/m and high emission current about 30 mA/cm2with the electric field about 4 V/m.These superior field emission characteristics could be attributed to low density of vertical CNTs and higher conductivity of the substrate. 关键词：场致发射阵列碳纳米管发射装置均匀 AAO模板场发射特性化学气相沉积开启电场

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Uniform arrays of carbon nanotubes applied in the field emission devices

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