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Xiao Wang
다차원 탄소재료 연구단
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Controllable Growth of (n, n −1) Family of Semiconducting Carbon Nanotubes

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Title
Controllable Growth of (n, n −1) Family of Semiconducting Carbon Nanotubes
Author(s)
Shuchen Zhang; Xiao Wang; Fengrui Yao; Maoshuai He; Dewu Lin; He Ma; Yangyong Sun; Qiuchen Zhao; Kaihui Liu; Feng Ding; Jin Zhang
Publication Date
2019-05
Journal
CHEM, v.5, no.5, pp.1182 - 1193
Publisher
Cell Press
Abstract
© 2019 Elsevier Inc. Semiconducting single-walled carbon nanotubes (SWNTs) with controlled chirality (n, m) and band gaps are expected to create a new era of electronics. Here, we report a rational design to enable SWNTs’ near-equilibrium nucleation and then grow a new family of semiconducting SWNTs: (n, n − 1) carbon nanotubes. No metallic SWNTs were observed in ∼100 samples by reflection optical spectral measurements. Combined with catalyst controlling, we have successfully synthesized both large-diameter (>2 nm) (n, n − 1) SWNTs and single-chirality (10, 9) SWNTs with abundances of 88% and >80%, respectively. Theoretical analysis indicates that the chirality of (n, n) tubes tends to change to (n, n − 1) by kinetically incorporating an energetically preferred pentagon-heptagon pair in the tube wall. This strategy opens up a new route for the growth of SWNT families beyond catalyst design. Zhang and co-workers developed a rational approach to growing a new family of semiconducting SWNTs: (n, n − 1) carbon nanotubes. Combined with catalyst design, both large-diameter (>2 nm) (n, n − 1) SWNTs and single-chirality (10, 9) SWNTs with abundances of 88% and >80%, respectively, were successfully realized. This strategy opens up a new route for the growth of SWNT families beyond catalyst design. ª 2019 Elsevier Inc.
URI
https://pr.ibs.re.kr/handle/8788114/5850
ISSN
2451-9294
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
Files in This Item:
1. 1-s2.0-S2451929419300695-main.pdfDownload

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