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Aligned van der Waals Coupled Growth of Carbon Nanotubes to Hexagonal Boron Nitride
Author(s) -
Nasseri Mohsen,
Ansary Armin,
Boland Mathias J.,
Strachan Douglas R.
Publication year - 2018
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201800793
Subject(s) - materials science , van der waals force , carbon nanotube , raman spectroscopy , boron nitride , nanotechnology , substrate (aquarium) , hexagonal boron nitride , nanoscopic scale , conductance , condensed matter physics , graphene , molecule , chemistry , physics , oceanography , organic chemistry , geology , optics
1D carbon nanotubes (CNTs) are grown on hexagonal boron nitride (hBN) surfaces. The nanotubes show clear preference to align to specific crystal directions of the hBN substrate. Raman spectra confirm that the nanotubes consist of sp 2 carbon, while nanomanipulation shows that they are van der Waals coupled to the underlying hBN substrate. Scanning conductance and electric force microscopy show that the CNTs have significantly greater electrical conductance compared to the hBN. This integrated aligned growth of materials with similar lattices, yet having dissimilar dimensionality and electrical conducting properties, provides a promising route to achieving intricate nanoscale electrical circuits on high‐quality insulating substrates.