Effect of the anchoring groups on the switching behaviour of the dihydroazulene/vinylheptafulvene molecular junction with zigzag-edged graphene nanoribbons electrodes
| Autor: | Cai-Juan Xia, Ai-Yun Yang, Jun Wang, Bo-Qun Zhang, Yao Heng Su, Zhe-Yan Tu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Molecular switch
Materials science Oscillation Biophysics Anchoring Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Zigzag Chemical physics Electrode Molecule Density functional theory Physical and Theoretical Chemistry 0210 nano-technology Molecular Biology Graphene nanoribbons |
| Zdroj: | Molecular Physics. 115:1606-1613 |
| ISSN: | 1362-3028 0026-8976 |
| DOI: | 10.1080/00268976.2017.1308026 |
| Popis: | The switching behaviour of dihydroazulene/vinylheptafulvene molecule with different anchoring groups sandwiched between two zigzag-edged graphene nanoribbons (ZGNRs) electrodes is investigated by applying nonequilibrium Green's function formalism combined with first-principles density functional theory. The calculated results show that the anchoring groups play a significant role in determining the electronic transport properties and switching behaviour of the molecular junctions. A higher current switching ratio without any oscillation can be obtained for the molecular junctions with carbon atom anchoring group, which suggests that this system has a broader application in future logic and memory devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|