Selective Growth of Subnanometer Diameter Single-Walled Carbon Nanotube Arrays in Hydrogen-Free CVD
文献类型：期刊论文
| 作者 | Kang, LX(康黎星); Deng, SB; Zhang, SC; Li, QW(李清文); Zhang, J |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2016 |
| 卷号 | 138期号:39 |
| 通讯作者 | Zhang, J |
| 英文摘要 | Small diameter single-walled carbon nano tube (SWNT) arrays with larger bandgap are more desirable as near-infrared optical absorbers for the fabrication of high performance photovoltaic and photo detector devices. We report herein a rational approach to selective growth of well-aligned subnanometer diameter (similar to 84% between 0.75 and 0.95 nm) SWNT arrays with a density of 0.3-0.5 tubes/mu m on quartz surfaces using solid Mo2C catalysts for short-time growth by low carbon feeding in hydrogen-free CVD. These subnanometer diameter SWNTs have a narrow chirality distribution (the ratio of (8,4), (8,5) and (7,6) is higher than 73%). During nanotube growth, only small size Mo nanoparticles are carbonized into stable Mo2C for catalyzing the growth of SWNTs through low carbon feeding rate over short time in the hydrogen-free environment, whereas larger catalysts are inactive due to underfeeding. Meanwhile, solid Mo2C catalysts are effective in reducing the chirality distributions of the as-grown SWNTs. Additionally, combining an annealing process after loading catalyst on the sapphire substrates, the average density is increased to similar to 15 tubes/mu m while maintaining small diameter and narrow chirality distribution. Our results offer more choices for structurally controlled growth of aligned-SWNTs, with potential applications in nanoelectronics. |
| 关键词[WOS] | CATALYSTS |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000384952100004 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/4828]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_先进材料研究部_李清文团队 |
| 推荐引用方式 GB/T 7714 | Kang, LX,Deng, SB,Zhang, SC,et al. Selective Growth of Subnanometer Diameter Single-Walled Carbon Nanotube Arrays in Hydrogen-Free CVD[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2016,138(39). |
| APA | Kang, LX,Deng, SB,Zhang, SC,Li, QW,&Zhang, J.(2016).Selective Growth of Subnanometer Diameter Single-Walled Carbon Nanotube Arrays in Hydrogen-Free CVD.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,138(39). |
| MLA | Kang, LX,et al."Selective Growth of Subnanometer Diameter Single-Walled Carbon Nanotube Arrays in Hydrogen-Free CVD".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 138.39(2016). |
入库方式： OAI收割
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。