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Ding, Feng
IBS - Center for Multidimensional Carbon Materials (CMCM)
Research Interests
  • Theoretical methods development for materials studies.

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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
Zhang, ShuchenWang, XiaoYao, FengruiHe, MaoshuaiLin, DewuMa, HeSun, YangyongZhao, QiuchenLiu, KaihuiDing, FengZhang, Jin
Issue Date
2019-05
Publisher
CELL PRESS
Citation
CHEM, v.5, no.5, pp.1182 - 1193
Abstract
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 nano-tubes. No metallic SWNTs were observed in similar to 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.
URI
https://scholarworks.unist.ac.kr/handle/201301/26717
URL
https://www.sciencedirect.com/science/article/pii/S2451929419300695?via%3Dihub
DOI
10.1016/j.chempr.2019.02.012
ISSN
2451-9294
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