The switching behaviors induced by torsion angle in a diblock co-oligomer molecule with tailoring graphene nanoribbon electrodes.
- Resource Type
- Article
- Authors
- Yang, Aiyun; Xia, Caijuan; Zhang, Boqun; Wang, Jun; Su, Yaoheng; Tu, Zheyan
- Source
- International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics. 2/10/2018, Vol. 32 Issue 4, p-1. 7p.
- Subject
- *DIHEDRAL angles
*NANORIBBONS
*MOLECULAR switches
*MOLECULAR machinery (Technology)
*SWITCHING power supplies
*SWITCHED communication networks
- Language
- ISSN
- 0217-9792
By applying first-principles method based on density functional theory combined with nonequilibrium Green's function, we investigate the effect of torsion angle on the electronic transport properties in dipyrimidinyl-diphenyl co-oligomer molecular device with tailoring graphene nanoribbon electrodes. The results show that the torsion angle plays an important role on the electronic transport properties of the molecular device. When the torsion angle rotates from 0 to 90, the molecular devices exhibit very different current-voltage characteristics which can realize the on and off states of the molecular switch. [ABSTRACT FROM AUTHOR]