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One-step synthesis of a carbon nano sheets-carbon nanotubes composite by plasma enhanced chemical vapor deposition and its field emission properties are investigated. We obtain the carbon nano sheets-carbon nanotube composite on the Co thin film with 20 nm Ti interlayer. We gain carbon nano sheets only on the Co thin films without Ti interlayer in the same growth conditions. The carbon nano sheets are distributed on the side wall and the top of carbon nanotubes. The Ti interlayer hinders the diffusion of Co into the silicon substrate and improves the catalytic capability of Co, thus it will help the growth of carbon nanotubes. When the thickness of Co film is 11 nm, the carbon nanotubes are vertically aligned on the flat Co film surface. Most of the carbon nano sheets are distributed on the top of the carbon nanotubes under this condition, which increases the number of emitters and enhances the field emission properties of the composites.
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Keywords:
- carbon nano sheets /
- carbon nanotubes /
- chemical vapor deposition /
- field emission
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[9] Zhu H Q, Zhang Y M, Yue L, Li W S, Li G L, Shu D, Chen H Y 2008 J. Power Sources 184 637
[10] Deng J H, Zheng R T, Zhao Y, Cheng G A 2012 ACS Nano 6 3727
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[14] Sun X H, Li K, Wu R, Wilhite P, Saito T, Gao J, Yang C Y 2010 Nanotechnology 21 045201
[15] Matsuda Y, Deng W Q, Goddard W A 2007 J. Phys. Chem. C 111 11113
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[1] Geim A K, Novoselov K S 2007 Nat. Mater. 6 183
[2] Novoselov K S, Geim A K, Morozov S V, Jiang D, Zhang Y, Dubonos S V, Grigorieva I V, Firsov A A 2004 Science 306 666
[3] Yao Z D, Li W, Gao X L 2012 Acta Phys. Sin. 61 117105 (in Chinese) [姚志东, 李炜, 高先龙 2012 61 117105]
[4] Hu F, Duan L, Ding J W 2012 Acta Phys. Sin. 61 077201 (in Chinese) [胡飞, 段玲, 丁建文 2012 61 077201]
[5] Zheng W T, Ho Y M, Tian H W, Wen M, Qi J L, Li Y A 2009 J. Phys. Chem. C 113 9164
[6] Hu X H, Xu J M, Sun L T 2012 Acta Phys. Sin. 61 047106 (in Chinese) [胡小会, 许俊敏, 孙立涛 2012 61 047106]
[7] Zhu X, Ning G Q, Fan Z J, Gao J S, Xu C M, Qian W Z, Wei F 2012 Carbon 50 2764
[8] Li C Y, Li Z, Zhu H W, Wang K L, Wei J Q, Li X A, Sun P Z, Zhang H, Wu D H 2010 J Phys. Chem. C 114 14008
[9] Zhu H Q, Zhang Y M, Yue L, Li W S, Li G L, Shu D, Chen H Y 2008 J. Power Sources 184 637
[10] Deng J H, Zheng R T, Zhao Y, Cheng G A 2012 ACS Nano 6 3727
[11] Pei Y H 2012 M. S. Dissertation (Changchun: Jilin University) (in Chinese) [裴艳慧 2012 硕士学位论文 (长春: 吉林大学)]
[12] de los Arcos T, Vonau F, Garnier M G, Thommen V, Boyen H G, Oelhafen P, Duggelin M, Mathis D, Guggenheim R 2002 Appl. Phys. Lett. 80 2383
[13] Kabir M S, Morjan R E, Nerushev O A, Lundgren P, Bengtsson S, Enokson P, Campbell E E B 2005 Nanotechnology 16 458
[14] Sun X H, Li K, Wu R, Wilhite P, Saito T, Gao J, Yang C Y 2010 Nanotechnology 21 045201
[15] Matsuda Y, Deng W Q, Goddard W A 2007 J. Phys. Chem. C 111 11113
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