Concatenation of triphenylene-like building blocks to construct a triphenylene 2D network, together with a representation of its (I) metallic spin-compensated and (II) anti-ferromagnetic spin-polarized semiconducting configurations.
Motivated
by the recent synthesis of super-heptazethrene (S7ZTH)
quantum dots, we use theoretical calculations to propose a set of
nanoribbons with nontrivial edge structures conceptually based on
the fusion of molecular units. As these nanoribbons can be assembled
according to a broad set of linking hierarchies, as allowed by the
geometry of the quantum dot, we investigate the relation between their
electronic properties and details of their complex edge structures.
Our simulations demonstrate that all S7ZTH nanoribbons exhibit semiconductor
behavior with an electronic band gap strongly influenced by the interplay
between lattice bipartition and coupling involving molecular orbitals
of successive S7ZTH blocks along the nanoribbon. Carrier mobilities
are also computed and compared with graphene nanoribbon counterparts.
Since bottom-up routes for the synthesis of carbon nanostructures
can be adapted to form intricate junction setups, we also investigated
the electronic transport properties of S7ZTH-based nanojunctions composed
of a central S7ZTH unit at different orientations. Our results show
that the transmission spectrum is highly sensitive to the junction
geometry, and we observe spin-dependent features, which can enable
applications in nanoelectronics and spintronics.
Graphyne nanocarbons are composed of a mixture of sp and sp2 hybridized atoms in different ratios and distributions. In addition to pure hexagonal systems, non-conventional graphynic structures can also accommodate...
Tripentaphenes are 2D nanocarbon lattices conceptually obtained from the assembly of acepentalene units. In this work, density functional theory is used to investigate their structural, electronic, and vibrational properties. Their...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.