Growth of single-walled carbon nanotubes from Ag15 cluster catalysts

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• 作者：Dake Hu ; Xin He ; Lifei Sun ; Guanchen Xu ; Liying Jiao ; Liang Zhao
• 刊名：Chinese Science Bulletin
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：61
• 期：12
• 页码：917-920
• 全文大小：2,035 KB
• 刊物主题：Science, general; Life Sciences, general; Physics, general; Chemistry/Food Science, general; Earth Sciences, general; Engineering, general;
• 出版者：Springer Berlin Heidelberg
• ISSN：1861-9541
• 卷排序：61

文摘

Chirality-specific growth of single-walled carbon nanotubes (SWNTs) remains a challenge for their practical applications in electronics. Here, we explored the surface growth of SWNTs by utilizing the atomic-precise silver cluster complex [Ag₁₅{1,3,5–(C≡C)₃–C₆H₃}₂(Py[8])₃–(CF₃SO₃)₃] (CF₃SO₃)₆ (Py[8] is abbreviation for octamethylazacalix[8] pyridine) as a catalyst precursor. The diameters of most acquired SWNTs distributed in the range of 1.2–1.4 nm, which is suitable for making high performance field-effect transistors. The high quality of the obtained SWNTs was evidenced by Raman spectroscopy and electrical measurements. Successful growth of high quality SWNTs in this study foresees that rational design of metal-organic complexes as growth catalysts can open up a new avenue for the controllable synthesis of SWNTs.KeywordsSingle-walled carbon nanotubeChiralityMetal-organic clusterCatalystRamanTEM