Large negative differential resistance and rectifying behaviors in isolated thiophene nanowire devices

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	Large negative differential resistance and rectifying behaviors in isolated thiophene nanowire devices
	F. X. Zu; Z. L. Liu; K. L. Yao; H. H. Fu; G. Y. Gao; W. Yao
	2013
发表期刊	Journal of Chemical Physics
ISSN	0021-9606
卷号	138 期号:15
摘要	We design isolated molecular nanowires composed of thiophene oligomers sandwiched between two one-dimensional gold electrodes. Electronic transport through the molecular junctions with two interface geometries is studied by performing the first principles calculations based on density functional theory and nonequilibrium Green's function. The current-voltage (I-V) curves of the molecular wires display an unexpected negative differential resistance and rectifying behaviors along with the oscillation effects, different from other theoretical and experimental studies about the analogous thiophene devices. The significant difference is attributed to the design of the one-dimensional gold electrodes with large enough vacuum layer in transverse direction in order to suppress the interaction between wires. Such transport behaviors indicate that the thiophene molecular device would be an important candidate in future molecular electronics. (C) 2013 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4801439]
部门归属	[zu, feng-xia ; liu, zu-li ; yao, kai-lun ; fu, hua-hua ; gao, guo-ying ; yao, wei] huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. [zu, feng-xia ; liu, zu-li ; yao, kai-lun ; fu, hua-hua ; gao, guo-ying ; yao, wei] huazhong univ sci & technol, wuhan natl high magnet field ctr, wuhan 430074, peoples r china. [zu, feng-xia] wuhan inst technol, sch sci, wuhan 430073, peoples r china. [yao, kai-lun] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. ; yao, kl (reprint author), huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. ; klyao@hust.edu.cn
关键词	Electron-transport Molecular Wires Conductance Dithienothiophene
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71760
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. X. Zu,Z. L. Liu,K. L. Yao,et al. Large negative differential resistance and rectifying behaviors in isolated thiophene nanowire devices[J]. Journal of Chemical Physics,2013,138(15).
APA	F. X. Zu,Z. L. Liu,K. L. Yao,H. H. Fu,G. Y. Gao,&W. Yao.(2013).Large negative differential resistance and rectifying behaviors in isolated thiophene nanowire devices.Journal of Chemical Physics,138(15).
MLA	F. X. Zu,et al."Large negative differential resistance and rectifying behaviors in isolated thiophene nanowire devices".Journal of Chemical Physics 138.15(2013).