| Enhanced dielectric and conductivity properties of carbon-coated SiC nanocomposites in the terahertz frequency range | |
| Huang,Feirong1; Fan,Shuting2; Li,Xiyang1; Qu,Xinghao1; Tian,Yuqi1; Zhang,Xuefeng3; Zhang,Zhidong4; Dong,Xinglong1; Cao,Tun5 | |
| Corresponding Author | Dong,Xinglong() |
| 2021-04-09 | |
| Source Publication | Nanotechnology
 |
| ISSN | 0957-4484 |
| Volume | 32Issue:26 |
| Abstract | Abstract C-coated SiC nanocomposites (SiC@C NCs) were one-step synthesized under a mixture atmosphere of Ar and CH4 using a DC arc-discharge plasma method. The microstructure of the composites could be controlled by varying the volume ratio of Ar and CH4. A strong response to the terahertz (THz) field was observed due to the existence of a graphite shell. The dielectric properties of SiC@C NCs can be enhanced by altering the thickness of the graphite shell. The thicker graphite shell results in a stronger absorption of THz waves and an enhanced real part of conductivity. Fitting the measured conductivity data using the Drude–Smith model reveals that the carrier transport in the SiC@C NCs and its counterpart, the SiC nanoparticles, is dominated by backscattering. The SiC@C NCs with enhanced conductivity are believed to be fundamental materials for various functionalized optoelectronic devices. |
| Keyword | silicon carbide terahertz time-domain spectroscopy dielectric property conductivity |
| DOI | 10.1088/1361-6528/abf070 |
| Language | 英语 |
| WOS ID | IOP:0957-4484-32-26-abf070 |
| Publisher | IOP Publishing |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/159386 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Dong,Xinglong |
| Affiliation | 1.Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China 2.College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People’s Republic of China 3.Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 110819, People’s Republic of China 4.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People’s Republic of China 5.School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, People’s Republic of China |
| Recommended Citation GB/T 7714 | Huang,Feirong,Fan,Shuting,Li,Xiyang,et al. Enhanced dielectric and conductivity properties of carbon-coated SiC nanocomposites in the terahertz frequency range[J]. Nanotechnology,2021,32(26). |
| APA | Huang,Feirong.,Fan,Shuting.,Li,Xiyang.,Qu,Xinghao.,Tian,Yuqi.,...&Cao,Tun.(2021).Enhanced dielectric and conductivity properties of carbon-coated SiC nanocomposites in the terahertz frequency range.Nanotechnology,32(26). |
| MLA | Huang,Feirong,et al."Enhanced dielectric and conductivity properties of carbon-coated SiC nanocomposites in the terahertz frequency range".Nanotechnology 32.26(2021). |
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