Growth of high-density horizontally aligned SWNT arrays using Trojan catalysts

Yue Hu, Lixing Kang, Qiuchen Zhao, Hua Zhong, Shuchen Zhang, Liangwei Yang, Zequn Wang, Jingjing Lin, Qingwen Li, Zhiyong Zhang, Lianmao Peng, Zhongfan Liu and Jin Zhang ()
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Yue Hu: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University
Lixing Kang: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University
Qiuchen Zhao: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University
Hua Zhong: Key Laboratory for the Physics and Chemistry of Nanodevices, Peking University
Shuchen Zhang: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University
Liangwei Yang: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University
Zequn Wang: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University
Jingjing Lin: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University
Qingwen Li: Suzhou Institute of Nanotech and Nanobionics, Chinese Academy of Science
Zhiyong Zhang: Key Laboratory for the Physics and Chemistry of Nanodevices, Peking University
Lianmao Peng: Key Laboratory for the Physics and Chemistry of Nanodevices, Peking University
Zhongfan Liu: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University
Jin Zhang: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Single-walled carbon nanotube (SWNT)-based electronics have been regarded as one of the most promising candidate technologies to replace or supplement silicon-based electronics in the future. These applications require high-density horizontally aligned SWNT arrays. During the past decade, significant efforts have been directed towards growth of high-density SWNT arrays. However, obtaining SWNT arrays with suitable density and quality still remains a big challenge. Herein, we develop a rational approach to grow SWNT arrays with ultra-high density using Trojan catalysts. The density can be as high as 130 SWNTs μm−1. Field-effect transistors fabricated with our SWNT arrays exhibit a record drive current density of −467.09 μA μm−1 and an on-conductance of 233.55 μS μm−1. Radio frequency transistors fabricated on these samples exhibit high intrinsic fT and fMAX of 6.94 and 14.01 GHz, respectively. These results confirm our high-density SWNT arrays are strong candidates for applications in electronics.

Date: 2015
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DOI: 10.1038/ncomms7099

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