Energy alignment induced negative differential resistance: the role of hybrid states in aromatic molecular devices
文献类型：期刊论文
| 作者 | Fan, Wei1,2; Zhang, R. Q.1,3,4; Rocha, A. Reily5,6; Sanvito, Stefano5,6 |
| 刊名 | Journal of chemical physics
 |
| 出版日期 | 2008-08-21 |
| 卷号 | 129期号:7页码:5 |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/1.2971176 |
| 通讯作者 | Zhang, r. q.(aprqz@cityu.edu.hk) |
| 英文摘要 | Hybridization in aromatic molecules plays an important role in determining their electron transport properties. when an sp(2) bonded aromatic ring hybridizes with a carbon pair in either sp(3), sp(2), or sp form, only sp(2) and sp result in a delocalized state across the whole molecule, opening a channel for transport. at the same time negative differential resistance (ndr) is found only in the sp(2) and sp cases. an energy alignment scheme is adopted to elucidate the ndr process. this is constructed by comparing the positions of frontier molecular levels and the states of leads. it is revealed that the alignment between lead states located around the fermi energy with the lowest unoccupied molecular orbital of the central molecule is the main cause of the ndr. (c) 2008 american institute of physics. |
| WOS关键词 | ELECTRON-TRANSPORT ; JUNCTIONS ; CONDUCTANCE |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Atomic, Molecular & Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000258643300044 |
| 出版者 | AMER INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2393438 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, R. Q. |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Nanoorgan Photoelect Lab, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100190, Peoples R China 3.City Univ Hong Kong, Ctr Super Diamond & Adv Films, Hong Kong, Hong Kong, Peoples R China 4.City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China 5.Trinity Coll Dublin, Sch Phys, Dublin, Ireland 6.Trinity Coll Dublin, CRANN, Dublin, Ireland |
| 推荐引用方式 GB/T 7714 | Fan, Wei,Zhang, R. Q.,Rocha, A. Reily,et al. Energy alignment induced negative differential resistance: the role of hybrid states in aromatic molecular devices[J]. Journal of chemical physics,2008,129(7):5. |
| APA | Fan, Wei,Zhang, R. Q.,Rocha, A. Reily,&Sanvito, Stefano.(2008).Energy alignment induced negative differential resistance: the role of hybrid states in aromatic molecular devices.Journal of chemical physics,129(7),5. |
| MLA | Fan, Wei,et al."Energy alignment induced negative differential resistance: the role of hybrid states in aromatic molecular devices".Journal of chemical physics 129.7(2008):5. |
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来源：中国科学院大学
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