Growth of Single-walled Carbon Nanotubes on Substrates Using Carbon Monoxide as Carbon Source |
| |
| Authors: | ZHAO Xue ZHANG Xinrui LIU Qidong ZHANG Zeyao LI Yan |
| |
| Affiliation: | Beijing National Laboratory for Molecular Science,Key Laboratory for the Physics and Chemistry of Nanodevices,State Key Laboratory of Rare Earth Materials Chemistry and Applications,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,P.R.China;Beijing National Laboratory for Molecular Science,Key Laboratory for the Physics and Chemistry of Nanodevices,State Key Laboratory of Rare Earth Materials Chemistry and Applications,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,P.R.China;Peking University Shenzhen Institute,Shenzhen 518057,P.R.China;College of Engineering,Peking University,Beijing 100871,P.R.China;PKU-HKUST ShenZhen-HongKong Institution,Shenzhen 518057,P.R.China;Beijing National Laboratory for Molecular Science,Key Laboratory for the Physics and Chemistry of Nanodevices,State Key Laboratory of Rare Earth Materials Chemistry and Applications,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,P.R.China;Peking University Shenzhen Institute,Shenzhen 518057,P.R.China |
| |
| Abstract: | The growth of single-walled carbon nanotubes(SWCNTs) on substrates has attracted great interests because of the potential applications in various fields. Carbon monoxide(CO) was used as the carbon source for the growth of SWCNTs on silicon substrates. Random or oriented SWCNTs can be produced by varying the CO flow rate. When the flow rate of CO was as low as 20 sccm(sccm:standard cubic centimeter per minute), dense SWCNT networks with clean surface were produced. When the flow rate was above 50 sccm, vertically aligned SWCNT(VA-SWCNT) arrays were grown. Well-aligned VA-SWCNT arrays were obtained in the temperature range of 650-800℃ and the content of large-diameter(above 1.7 nm) tubes in the array increased with the temperature. The height of the array was affected by the growth temperature, the CO flow rate, and the growth time. These findings indicate CO can be used as an efficient carbon source for the growth of SWCNTs on substrates under low flow rates. |
| |
| Keywords: | Carbon monoxide Vertically aligned single-walled carbon nanotube Chemical vapor deposition Flow rate |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学研究》浏览原始摘要信息 |
|
点击此处可从《高等学校化学研究》下载全文 |
|
