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Behnia S, Fathizadeh S, Javanshour E, Nemati F. Light-Driven Modulation of Electrical Current through DNA Sequences: Engineering of a Molecular Optical Switch. J Phys Chem B 2020; 124:3261-3270. [DOI: 10.1021/acs.jpcb.0c00073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- S. Behnia
- Department of Physics, Urmia University of Technology, Urmia 5716693187, Iran
| | - S. Fathizadeh
- Department of Physics, Urmia University of Technology, Urmia 5716693187, Iran
| | - E. Javanshour
- Department of Physics, Urmia University of Technology, Urmia 5716693187, Iran
| | - F. Nemati
- Department of Physics, Urmia University of Technology, Urmia 5716693187, Iran
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Xia Y, Li T, Yuan C, Fletcher C, Dai X, Zhang X, Zhang L, Jiang Y, Li H. Odd-Even Effects on Transport Properties of Polycyclic Arene Molecular Devices with Decreasing Numbers of Benzene Rings. Chemphyschem 2020; 21:568-574. [PMID: 31773853 DOI: 10.1002/cphc.201900993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Indexed: 11/11/2022]
Abstract
The electron transport properties of polycyclic aromatic hydrocarbons (PAHs) with different numbers of benzene rings tethered to narrow zigzag graphene nanoribbon (ZGNR) electrodes have been investigated. Results show that the transport properties of PAHs are dependent on whether the number of benzene rings in the width direction is odd or even. This effect is strong for narrow width PAHs, but its strength decreases as the width of the PAH is increased. PAHs with an odd number of rings exhibit poor transport properties, whereas the ones having an even number of rings show excellent transport properties coupled with a negative differential resistance (NDR) effect. Moreover, the linkage points and the structure of the molecules have a noticeable effect on the transport properties of the PAH, making the odd-even effect weaker or disappear entirely. Although the PAH with three benzene rings displays poor transport capabilities, it shows excellent rectification behavior compared to the other examined molecules. These studies present a feasible avenue for designing molecular devices with enhanced performance by the careful manipulation of the PAH molecular structure.
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Affiliation(s)
- Yujie Xia
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
| | - Tao Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
| | - Chao Yuan
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
| | - Cameron Fletcher
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
| | - Xinyue Dai
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
| | - Xingfan Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
| | - Lishu Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
| | - Yanyan Jiang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
| | - Hui Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, 250061, People's Republic of China
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