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Semiconducting Nanotubes Derived from a Rectangular Graphyne: A DFT Study
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DOI：10.1021/acsnanoscienceau.5c00157.png)
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Abstract
En 中文
Proposing new ways to organize carbon in 2D nanomaterials has been a relevant strategy in the search for systems with targeted properties for different applications. One focus is the study of fully sp2 nongraphitic networks, with successfully synthesized examples. Hybrid sp–sp2 systems of the graphyne family are a related approach, and many systems have the honeycomb lattice as a base model. However, other examples have been inspired by other lattices as the recently proposed rγGY sheet, which features a semiconducting behavior with highly localized quasi-1D states. Here, we investigate how to tune rγGY properties by folding this sheet into nanotube forms. We elucidate mechanisms that determine their electronic structure by means of density functional theory calculations, as well as we identify the interplay involving chirality, diameter, and the emergence of dispersive/localized frontier states on gap modulation through simple extrapolated methods.
Keywords:
Carbon nanotubes
Electrical conductivity
Lattices
Two dimensional materials
Wave function
nonconventional graphynes
nanotubes
electronic structure
zone folding
flat states
semiconducting materials
Journal
IF:
6.3
Papers:
547
Citations:
685
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