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Yang J, Wei J, Liao B, Bian B, Wang G, Zhang X, Wu X, Luo J, Chen L. Electronic transport induced by doping on the electrodes in molecular devices. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2020. [DOI: 10.1142/s0219633620500303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The electronic transport properties of molecular device based on photochromic diarylethene with carbon nanotube electrode are investigated by density functional theory and non-equilibrium Green’s function. The devices with open and closed configurations show a switching effect. It is found that doping of different amounts of nitrogen atoms on left electrodes results in different electronic transport properties. In addition, we discuss the observed oscillation of current in the devices induced by doping using transmission eigenstates and transmission spectra of the device. The local density of states of the device is calculated to analyze the observed rectifying behavior. The results suggest that doping of nitrogen atoms on the left electrode can be considered as a factor to modulate the electronic transport properties of molecular device.
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Affiliation(s)
- Jingjuan Yang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, P. R. China
- School of Science, Jiangnan University, Wuxi 214122, P. R. China
| | - Jinlei Wei
- School of Science, Jiangnan University, Wuxi 214122, P. R. China
| | - Bin Liao
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, P. R. China
- Beijing Radiation Center, Beijing 100088, P. R. China
| | - Baoan Bian
- School of Science, Jiangnan University, Wuxi 214122, P. R. China
| | - Guoliang Wang
- Guangdong Guangxin Ion Beam Technology Co., Ltd, Guangzhou 510000, P. R. China
| | - Xu Zhang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, P. R. China
- Beijing Radiation Center, Beijing 100088, P. R. China
| | - Xianying Wu
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, P. R. China
- Beijing Radiation Center, Beijing 100088, P. R. China
| | - Jun Luo
- Beijing Radiation Center, Beijing 100088, P. R. China
| | - Lin Chen
- School of Science, Jiangnan University, Wuxi 214122, P. R. China
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Wang W, Gao D, Huang Y, Zhou T, Wang S. Spin transport properties of 1,4,5,8-naphthalenetetracarboxylic dianhydride based molecular devices. Phys Chem Chem Phys 2019; 21:24650-24658. [PMID: 31674629 DOI: 10.1039/c9cp04572d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using density functional theory combined with the nonequilibrium Green's function method, spin-dependent transport properties of molecular devices consisting of the 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTCDA) molecule anchored via C and O linkages to zigzag graphene nanoribbon (ZGNR) electrodes were systematically investigated. Calculation results showed that the two connection modes display a good spin transport performance in both parallel (P) and anti-parallel (AP) configurations. Particularly, oxygen connection significantly improves the spin filtration effect. These observations were validated by analyzing spin-resolved transmission spectra, band structures and spatial distribution of molecular orbitals within the bias window. Further comparison of the results of different models indicated that the linkage plays a crucial role in improving the spin transport properties for the proposed NTCDA-ZGNR system, giving them potential applications in high-performance multifunctional spintronic devices.
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Affiliation(s)
- Wenjing Wang
- College of Chemistry and Material Science, The Key Laboratory of Functional, Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based, Materials, Anhui Normal University, Wuhu 241000, P. R. China.
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Yang J, Han X, Bian B. Electronic transport induced by edge modification of graphene electrodes in single molecular device. Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2382-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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