Open Access
Proceedings of the National Academy of Sciences of the United States of America, volume 118, issue 37
One-dimensional van der Waals heterostructures: Growth mechanism and handedness correlation revealed by nondestructive TEM
Zheng Yongjia
1
,
Kumamoto Akihito
2
,
Hisama Kaoru
1
,
Otsuka Keigo
1
,
Wickerson Grace
3
,
Sato Yuta
4
,
Liu Ming
1
,
Inoue T.
5
,
Chiashi Shohei
1
,
Tang Dai Ming
6
,
Zhang Qiang
7
,
Anisimov Anton
8
,
Li Yan
9
,
Kazu Suenaga
4, 10
,
Ikuhara Yuichi
2
,
Maruyama Shigeo
1
,
1
Department of Mechanical Engineering, The University of Tokyo, Tokyo 113-8656, Japan;
|
2
Institute of Engineering Innovation, The University of Tokyo, Tokyo 113-8656, Japan;
|
4
Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8565, Japan;
|
5
Department of Applied Physics, Osaka University, Osaka 565-0871, Japan;
|
8
Canatu Ltd., SF-01720 Vantaa, Finland;
|
10
The Institute of Scientific and Industrial Research, Osaka University, Osaka 567-0047, Japan
|
Publication type: Journal Article
Publication date: 2021-09-10
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 11.1
ISSN: 00278424, 10916490
PubMed ID:
34508003
Multidisciplinary
Abstract
Significance We recently synthesized coaxially nested one-dimensional van der Waals heterostructures in which boron nitride nanotubes or molybdenum disulfide nanotubes grew seamlessly on a single-walled carbon nanotube template. In this work, edge structures, nucleation sites, and crystal epitaxial relationships in heteronanotubes are unambiguously revealed by a nondestructive transmission electron microscopic technique. These understandings, together with the characterization technique developed here, can help to optimize the synthesis process. Structure-controlled heteronanotubes may, ultimately, be used to build nanoscale devices such as gate-all-around nanotube transistors. We recently synthesized one-dimensional (1D) van der Waals heterostructures in which different atomic layers (e.g., boron nitride or molybdenum disulfide) seamlessly wrap around a single-walled carbon nanotube (SWCNT) and form a coaxial, crystalized heteronanotube. The growth process of 1D heterostructure is unconventional—different crystals need to nucleate on a highly curved surface and extend nanotubes shell by shell—so understanding the formation mechanism is of fundamental research interest. In this work, we perform a follow-up and comprehensive study on the structural details and formation mechanism of chemical vapor deposition (CVD)–synthesized 1D heterostructures. Edge structures, nucleation sites, and crystal epitaxial relationships are clearly revealed using transmission electron microscopy (TEM). This is achieved by the direct synthesis of heteronanotubes on a CVD-compatible Si/SiO2 TEM grid, which enabled a transfer-free and nondestructive access to many intrinsic structural details. In particular, we have distinguished different-shaped boron nitride nanotube (BNNT) edges, which are confirmed by electron diffraction at the same location to be strictly associated with its own chiral angle and polarity. We also demonstrate the importance of surface cleanness and isolation for the formation of perfect 1D heterostructures. Furthermore, we elucidate the handedness correlation between the SWCNT template and BNNT crystals. This work not only provides an in-depth understanding of this 1D heterostructure material group but also, in a more general perspective, serves as an interesting investigation on crystal growth on highly curved (radius of a couple of nanometers) atomic substrates.
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Zheng Y. et al. One-dimensional van der Waals heterostructures: Growth mechanism and handedness correlation revealed by nondestructive TEM // Proceedings of the National Academy of Sciences of the United States of America. 2021. Vol. 118. No. 37.
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Zheng Y., Kumamoto A., Hisama K., Otsuka K., Wickerson G., Sato Y., Liu M., Inoue T., Chiashi S., Tang D. M., Zhang Q., Anisimov A., Kauppinen E. I., Li Y., Kazu S., Ikuhara Y., Maruyama S., Xiang R. One-dimensional van der Waals heterostructures: Growth mechanism and handedness correlation revealed by nondestructive TEM // Proceedings of the National Academy of Sciences of the United States of America. 2021. Vol. 118. No. 37.
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TY - JOUR
DO - 10.1073/pnas.2107295118
UR - https://doi.org/10.1073%2Fpnas.2107295118
TI - One-dimensional van der Waals heterostructures: Growth mechanism and handedness correlation revealed by nondestructive TEM
T2 - Proceedings of the National Academy of Sciences of the United States of America
AU - Zheng, Yongjia
AU - Kumamoto, Akihito
AU - Otsuka, Keigo
AU - Wickerson, Grace
AU - Sato, Yuta
AU - Liu, Ming
AU - Inoue, T.
AU - Chiashi, Shohei
AU - Tang, Dai Ming
AU - Anisimov, Anton
AU - Kauppinen, Esko I.
AU - Ikuhara, Yuichi
AU - Maruyama, Shigeo
AU - Xiang, Rong
AU - Hisama, Kaoru
AU - Zhang, Qiang
AU - Li, Yan
AU - Kazu, Suenaga
PY - 2021
DA - 2021/09/10 00:00:00
PB - Proceedings of the National Academy of Sciences (PNAS)
IS - 37
VL - 118
PMID - 34508003
SN - 0027-8424
SN - 1091-6490
ER -
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@article{2021_Zheng,
author = {Yongjia Zheng and Akihito Kumamoto and Keigo Otsuka and Grace Wickerson and Yuta Sato and Ming Liu and T. Inoue and Shohei Chiashi and Dai Ming Tang and Anton Anisimov and Esko I. Kauppinen and Yuichi Ikuhara and Shigeo Maruyama and Rong Xiang and Kaoru Hisama and Qiang Zhang and Yan Li and Suenaga Kazu},
title = {One-dimensional van der Waals heterostructures: Growth mechanism and handedness correlation revealed by nondestructive TEM},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
year = {2021},
volume = {118},
publisher = {Proceedings of the National Academy of Sciences (PNAS)},
month = {sep},
url = {https://doi.org/10.1073%2Fpnas.2107295118},
number = {37},
doi = {10.1073/pnas.2107295118}
}