Holey Graphene: Topological Control of Electronic Properties and Electric Conductivity
| Autor: | Olga E. Glukhova, Pavel V. Barkov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Band gap General Chemical Engineering Physics::Optics 02 engineering and technology Conductivity 010402 general chemistry 01 natural sciences Article law.invention symbols.namesake Electrical resistivity and conductivity law computer simulation General Materials Science Anisotropy QD1-999 Range (particle radiation) Condensed matter physics electrical conductivity business.industry Graphene Fermi level graphene electrical conductivity anisotropy 021001 nanoscience & nanotechnology 0104 chemical sciences Chemistry Semiconductor holey graphene symbols 0210 nano-technology business |
| Zdroj: | Nanomaterials Volume 11 Issue 5 Nanomaterials, Vol 11, Iss 1074, p 1074 (2021) |
| ISSN: | 2079-4991 |
| DOI: | 10.3390/nano11051074 |
| Popis: | This paper studies holey graphene with various neck widths (the smallest distance between two neighbor holes). For the considered structures, the energy gap, the Fermi level, the density of electronic states, and the distribution of the local density of electronic states (LDOS) were found. The electroconductive properties of holey graphene with round holes were calculated depending on the neck width. It was found that, depending on the neck width, holey graphene demonstrated a semiconductor type of conductivity with an energy gap varying in the range of 0.01–0.37 eV. It was also shown that by changing the neck width, it is possible to control the electrical conductivity of holey graphene. The anisotropy of holey graphene electrical conductivity was observed depending on the direction of the current transfer. |
| Databáze: | OpenAIRE |
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