Synthesis of narrow graphene nanoribbons by a metal-catalyzed axial unzipping method

WANG Kai; ZHOU Qing-ping; CHEN Zhi-gang; CHEN You-xin; HE Zhi-yan; JIANG Sheng-hao; CHEN Jie; CHEN Chang-xin

doi:10.19869/j.ncm.1007-8827.20200012

Volume 35 Issue 6

Dec. 2020

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Article Navigation > New Carbon Mater. > 2020 > 35(6): 716-721

WANG Kai, ZHOU Qing-ping, CHEN Zhi-gang, CHEN You-xin, HE Zhi-yan, JIANG Sheng-hao, CHEN Jie, CHEN Chang-xin. Synthesis of narrow graphene nanoribbons by a metal-catalyzed axial unzipping method. New Carbon Mater., 2020, 35(6): 716-721. doi: 10.19869/j.ncm.1007-8827.20200012

Citation:

WANG Kai, ZHOU Qing-ping, CHEN Zhi-gang, CHEN You-xin, HE Zhi-yan, JIANG Sheng-hao, CHEN Jie, CHEN Chang-xin. Synthesis of narrow graphene nanoribbons by a metal-catalyzed axial unzipping method. New Carbon Mater., 2020, 35(6): 716-721. doi: 10.19869/j.ncm.1007-8827.20200012

Citation:

WANG Kai, ZHOU Qing-ping, CHEN Zhi-gang, CHEN You-xin, HE Zhi-yan, JIANG Sheng-hao, CHEN Jie, CHEN Chang-xin. Synthesis of narrow graphene nanoribbons by a metal-catalyzed axial unzipping method. New Carbon Mater., 2020, 35(6): 716-721. doi: 10.19869/j.ncm.1007-8827.20200012

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Synthesis of narrow graphene nanoribbons by a metal-catalyzed axial unzipping method

doi: 10.19869/j.ncm.1007-8827.20200012

1.
School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212001, China;
2.
National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Key Laboratory for Thin Film and Micro fabrication of the Ministry of Education, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Funds: National Natural Science Foundation of China for Excellent Young Scholars (61622404); Chang Jiang (Cheung Kong) Scholars Program of the Ministry of Education of China (Q2017081);National Natural Science Foundation of China (62074098);Science and Technology Innovation Action Program from the Science and Technology Commission of Shanghai Municipality (15520720200).

Received Date: 2020-02-02
Rev Recd Date: 2020-04-22
Publish Date: 2020-12-31

Abstract

Abstract

Narrow graphene nanoribbons (GNRs) have great prospects for use in electronic and optoelectronic devices owing to their sizable band gap. However, there has been no good way to prepare high-quality GNRs with a narrow width. Here, a method is reported to prepare narrow, high-quality GNRs and single-wall carbon nanotube (SWCNT)/GNR intramolecular heterojunctions by the metal-catalyzed axial unzipping of SWCNTs, using sputtered Pd as the catalyst at 750 and 800 ℃ under a mixed gas flow of Ar and H₂. The unzipping process parameters were optimized. It was found that the unzipping rate of SWCNTs can be adjusted by controlling the hydrogen flow rate. The prepared narrow GNRs and GNR/SWCNT intramolecular heterojunctions are promising for use in next-generation electronic and optoelectronic devices.
- Single-walled carbon nanotube,
- Graphene nanoribbon,
- Heterojunction

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References(31)

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