| Autor: |
Chen, Hui, Zhang, Xian-Li, Zhang, Yu-Yang, Wang, Dongfei, Bao, De-Liang, Que, Yande, Xiao, Wende, Du, Shixuan, Ouyang, Min, Pantelides, Sokrates T., Gao, Hong-Jun |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Science 365, 1036 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1126/science.aax7864 |
| Popis: |
The construction of atomically-precise carbon nanostructures holds promise for developing novel materials for scientific study and nanotechnology applications. Here we show that graphene origami is an efficient way to convert graphene into atomically-precise, complex, and novel nanostructures. By scanning-tunneling-microscope manipulation at low temperature, we repeatedly fold and unfold graphene nanoislands (GNIs) along arbitrarily chosen direction. A bilayer graphene stack featuring a tunable twist angle and a tubular edge connection between the layers are formed. Folding single-crystal GNIs creates tubular edges with specified chirality and one-dimensional electronic features similar to those of carbon nanotubes, while folding bi-crystal GNIs creates well-defined intramolecular junctions. Both origami structural models and electronic band structures were computed to complement analysis of the experimental results. The present atomically-precise graphene origami provides a platform for constructing novel carbon nanostructures with engineered quantum properties and ultimately quantum machines. |
| Databáze: |
arXiv |
| Externí odkaz: |
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