Field emission from carbon nanotube bundle arrays grown on self-aligned ZnO nanorods

被引：47
作者：
Li, Chun
Fang, Guojia [1 ]
Yuan, Longyan
Liu, Nishuang
Ai, Lei
Xiang, Qi
Zhao, Dongshan
Pan, Chunxu
Zhao, Xingzhong
机构：
[1] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China
[2] Wuhan Univ, Key Lab Acoust & Photon Mat & Devices, Minist Educ, Wuhan 430072, Peoples R China
[3] Chinese Acad Sci, State Key Lab Transducer Technol, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China
来源：
NANOTECHNOLOGY | 2007年 / 18卷 / 15期
关键词：
D O I：
10.1088/0957-4484/18/15/155702
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The field emission (FE) properties of carbon nanotube (CNT) bundle arrays grown on vertically self-aligned ZnO nanorods (ZNRs) are reported. The ZNRs were first synthesized on ZnO-seed-coated Si substrate by the vapour phase transport method, and then the radically grown CNTs were grown directly on the surface of the ZNRs from ethanol flames. The CNT/ZNR composite showed a turn-on field of 1.5 V mu m(-1) (at 0.1 mu A cm(-2)), a threshold field of 4.5 V mu m(-1) (at 1 mA cm(-2)) and a stable emission current with fluctuations of 5%, demonstrating significantly enhanced FE of ZNRs due to the low work function and high aspect ratio of the CNTs, and large surface-to-volume ratio of the underlying ZNRs.
引用
收藏
页数：4
相关论文
共 28 条
[1]   Electric field induced growth of well aligned carbon nanotubes from ethanol flames [J].
Bao, QL ;
Pan, CX .
NANOTECHNOLOGY, 2006, 17 (04) :1016-1021
[2]   Carbon nanotube films as electron field emitters [J].
Bonard, JM ;
Croci, M ;
Klinke, C ;
Kurt, R ;
Noury, O ;
Weiss, N .
CARBON, 2002, 40 (10) :1715-1728
[3]  
Cao F, 2005, NEW CARBON MATER, V20, P261
[4]   Fully sealed, high-brightness carbon-nanotube field-emission display [J].
Choi, WB ;
Chung, DS ;
Kang, JH ;
Kim, HY ;
Jin, YW ;
Han, IT ;
Lee, YH ;
Jung, JE ;
Lee, NS ;
Park, GS ;
Kim, JM .
APPLIED PHYSICS LETTERS, 1999, 75 (20) :3129-3131
[5]   ZnO nanowires formed on tungsten substrates and their electron field emission properties [J].
Dong, LF ;
Jiao, J ;
Tuggle, DW ;
Petty, JM ;
Elliff, SA ;
Coulter, M .
APPLIED PHYSICS LETTERS, 2003, 82 (07) :1096-1098
[6]   Carbon nanotube arrays on silicon substrates and their possible application [J].
Fan, SS ;
Liang, WJ ;
Dang, HY ;
Franklin, N ;
Tombler, T ;
Chapline, M ;
Dai, HJ .
PHYSICA E, 2000, 8 (02) :179-183
[7]   ZnO-nanoparticle-coated carbon nanotubes demonstrating enhanced electron field-emission properties [J].
Green, Joshua M. ;
Dong, Lifeng ;
Gutu, Timothy ;
Jiao, Jun ;
Conley, John F., Jr. ;
Ono, Yoshi .
JOURNAL OF APPLIED PHYSICS, 2006, 99 (09)
[8]   Direct growth of aligned carbon nanotube field emitter arrays onto plastic substrates [J].
Hofmann, S ;
Ducati, C ;
Kleinsorge, B ;
Robertson, J .
APPLIED PHYSICS LETTERS, 2003, 83 (22) :4661-4663
[9]   Field emission of zinc oxide nanowires grown on carbon cloth [J].
Jo, SH ;
Banerjee, D ;
Ren, ZF .
APPLIED PHYSICS LETTERS, 2004, 85 (08) :1407-1409
[10]   Zinc oxide nanowires on carbon nanotubes [J].
Kim, H ;
Sigmund, W .
APPLIED PHYSICS LETTERS, 2002, 81 (11) :2085-2087
123