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Title: Comparative investigation of electronic transport across three-dimensional nanojunctions

Authors:
; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1342813
Grant/Contract Number:
FG02-02ER45995
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 8; Related Information: CHORUS Timestamp: 2017-02-07 10:28:26; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Wang, Yun-Peng, Zhang, X. -G., Fry, J. N., and Cheng, Hai-Ping. Comparative investigation of electronic transport across three-dimensional nanojunctions. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.085303.
Wang, Yun-Peng, Zhang, X. -G., Fry, J. N., & Cheng, Hai-Ping. Comparative investigation of electronic transport across three-dimensional nanojunctions. United States. doi:10.1103/PhysRevB.95.085303.
Wang, Yun-Peng, Zhang, X. -G., Fry, J. N., and Cheng, Hai-Ping. Tue . "Comparative investigation of electronic transport across three-dimensional nanojunctions". United States. doi:10.1103/PhysRevB.95.085303.
@article{osti_1342813,
title = {Comparative investigation of electronic transport across three-dimensional nanojunctions},
author = {Wang, Yun-Peng and Zhang, X. -G. and Fry, J. N. and Cheng, Hai-Ping},
abstractNote = {},
doi = {10.1103/PhysRevB.95.085303},
journal = {Physical Review B},
number = 8,
volume = 95,
place = {United States},
year = {Tue Feb 07 00:00:00 EST 2017},
month = {Tue Feb 07 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevB.95.085303

Citation Metrics:
Cited by: 1work
Citation information provided by
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  • The establishment of covalent junctions between carbon nanotubes (CNTs) and the modification of their straight tubular morphology are two strategies needed to successfully synthesize nanotube-based three-dimensional (3D) frameworks exhibiting superior material properties. Engineering such 3D structures in scalable synthetic processes still remains a challenge. This work pioneers the bulk synthesis of 3D macroscale nanotube elastic solids directly via a boron-doping strategy during chemical vapor deposition, which influences the formation of atomic-scale elbow junctions and nanotube covalent interconnections. Detailed elemental analysis revealed that the elbow junctions are preferred sites for excess boron atoms, indicating the role of boron and curvature inmore » the junction formation mechanism, in agreement with our first principle theoretical calculations. Exploiting this material s ultra-light weight, super-hydrophobicity, high porosity, thermal stability, and mechanical flexibility, the strongly oleophilic sponge-like solids are demonstrated as unique reusable sorbent scaffolds able to efficiently remove oil from contaminated seawater even after repeated use.« less
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  • The oscillation behavior described by Tang et al.[Phys. Plasmas 19, 073519 (2012)] differs too greatly from previous experimental and numerical studies to claim observation of the same phenomenon. Most significantly, the rotation velocity by Tang et al.[Phys. Plasmas 19, 073519 (2012)] is three orders of magnitude larger than that of typical 'rotating spoke' phenomena. Several physical and numerical considerations are presented to more accurately understand the numerical results of Tang et al.[Phys. Plasmas 19, 073519 (2012)] in light of previous studies.
  • The numerical simulation described in our paper [D. L. Tang et al., Phys. Plasmas 19, 073519 (2012)] shows a rotating dense plasma structure, which is the critical characteristic of the rotating spoke. The simulated rotating spoke has a frequency of 12.5 MHz with a rotational speed of {approx}1.0 Multiplication-Sign 10{sup 6} m/s on the surface of the anode. Accompanied by the almost uniform azimuthal ion distribution, the non-axisymmetric electron distribution introduces two azimuthal electric fields with opposite directions. The azimuthal electric fields have the same rotational frequency and speed together with the rotating spoke. The azimuthal electric fields excite themore » axial electron drift upstream and downstream due to the additional E{sub {theta}} x B field and then the axial shear flow is generated. The axial local charge separation induced by the axial shear electron flow may be compensated by the azimuthal electron transport, finally resulting in the azimuthal electric field rotation and electron transport with the rotating spoke.« less