Enhanced dielectric and conductivity properties of carbon-coated SiC nanocomposites in the terahertz frequency range

doi:10.1088/1361-6528/abf070

IMR OpenIR

	Enhanced dielectric and conductivity properties of carbon-coated SiC nanocomposites in the terahertz frequency range
	Huang,Feirong 1; Fan,Shuting 2; Li,Xiyang 1; Qu,Xinghao 1; Tian,Yuqi 1; Zhang,Xuefeng 3; Zhang,Zhidong 4; Dong,Xinglong 1; Cao,Tun 5
通讯作者	Dong,Xinglong()
	2021-04-09
发表期刊	Nanotechnology
ISSN	0957-4484
卷号	32 期号:26
摘要	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.
关键词	silicon carbide terahertz time-domain spectroscopy dielectric property conductivity
DOI	10.1088/1361-6528/abf070
语种	英语
WOS记录号	IOP:0957-4484-32-26-abf070
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/159386
专题	中国科学院金属研究所
通讯作者	Dong,Xinglong
作者单位	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
推荐引用方式 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).