Electrical and optical properties of MWNTs/HDPE composites in Terahertz region
文献类型：期刊论文
| 作者 | Chen, XL(陈西良) ; Chen, X ; Zhu, ZY(朱智勇) |
| 刊名 | NUCLEAR SCIENCE AND TECHNIQUES
 |
| 出版日期 | 2012 |
| 卷号 | 23期号:3 |
| ISSN号 | 1001-8042 |
| 英文摘要 | Optical and electrical properties of composites, prepared by filling of high density polyethylene (HDPE) with two kinds of multi-walled carbon nanotubes (MWNTs) differing in diameters, were explored by terahertz time-domain spectroscopy (THz-TDS) in the frequency range from 0.2 to 1.6 THz. It is found that composite with larger-diameter MWNTs possesses larger absorption coefficient and conductivity at the same concentration. The real part of the ac conductivity of the composites follows a power law dependence on frequency. And the power index is around 0.75 regardless of the MWNT concentration and diameter. The experimental data were analyzed with Cole-Cole equation under the assumption that the conductive clusters dispersed in the polymer matrix behave like dipoles and contribute mainly to the dielectric loss. It is found that both of the composites have similar values of relaxation time and distribution parameter. With increase of the MWNTs concentration, the relaxation time increases and tends to saturate at 0.7 Ps after passing through the percolation threshold. |
| 语种 | 英语 |
| WOS记录号 | WOS:000307905000006 |
| 公开日期 | 2013-12-05 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/13148]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Chen, XL,Chen, X,Zhu, ZY. Electrical and optical properties of MWNTs/HDPE composites in Terahertz region[J]. NUCLEAR SCIENCE AND TECHNIQUES,2012,23(3). |
| APA | Chen, XL,Chen, X,&Zhu, ZY.(2012).Electrical and optical properties of MWNTs/HDPE composites in Terahertz region.NUCLEAR SCIENCE AND TECHNIQUES,23(3). |
| MLA | Chen, XL,et al."Electrical and optical properties of MWNTs/HDPE composites in Terahertz region".NUCLEAR SCIENCE AND TECHNIQUES 23.3(2012). |
入库方式： OAI收割
来源：上海应用物理研究所
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