Current-voltage characteristics of individual conducting polymer nanotubes and nanowires
文献类型：期刊论文
| 作者 | Long, YZ ; Yin, ZH ; Li, MM ; Gu, CZ ; Duvail, JL ; Jin, AZ ; Wan, MX |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2009 |
| 卷号 | 18期号:6页码:2514 |
| 关键词 | ELECTRICAL-CONDUCTIVITY CARBON NANOTUBES POLYACETYLENE NANOFIBRES MAGNETIC-SUSCEPTIBILITY POLYANILINE NANOTUBES TUNNELING CONDUCTION POLYPYRROLE NANOTUBE CHARGE-TRANSPORT ROOM-TEMPERATURE PEDOT NANOWIRES |
| ISSN号 | 1674-1056 |
| 通讯作者 | Long, YZ: Qingdao Univ, Coll Phys Sci, Qingdao 266071, Peoples R China. |
| 中文摘要 | We report the current-voltage (I-V) characteristics of individual polypyrrole nanotubes and poly(3,4-ethylenedioxythiophene) (PEDOT) nanowires in a temperature range from 300 K to 2 K. Considering the complex structures of such quasi-one-dimensional systems with an array of ordered conductive regions separated by disordered barriers, we use the extended fluctuation-induced tunneling (FIT) and thermal excitation model (Kaiser expression) to fit the temperature and electric-field dependent I-V curves. It is found that the I-V data measured at higher temperatures or higher voltages can be well fitted by the Kaiser expression. However, the low-temperature data around the zero bias clearly deviate from those obtained from this model. The deviation (or zero-bias conductance suppression) could be possibly ascribed to the occurrence of the Coulomb-gap in the density of states near the Femi level and/or the enhancement of electron-electron interaction resulting from nanosize effects, which have been revealed in the previous studies on low-temperature electronic transport in conducting polymer films, pellets and nanostructures. In addition, similar I-V characteristics and deviation are also observed in an isolated K(0.27)MnO(2) nanowire. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10604038]; Program for New Century Excellent Talents in University of China [NCET-07-0472] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35593]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Long, YZ,Yin, ZH,Li, MM,et al. Current-voltage characteristics of individual conducting polymer nanotubes and nanowires[J]. CHINESE PHYSICS B,2009,18(6):2514. |
| APA | Long, YZ.,Yin, ZH.,Li, MM.,Gu, CZ.,Duvail, JL.,...&Wan, MX.(2009).Current-voltage characteristics of individual conducting polymer nanotubes and nanowires.CHINESE PHYSICS B,18(6),2514. |
| MLA | Long, YZ,et al."Current-voltage characteristics of individual conducting polymer nanotubes and nanowires".CHINESE PHYSICS B 18.6(2009):2514. |
入库方式： OAI收割
来源：物理研究所
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