Influence of N-doping on dielectric properties of carbon-coated copper nanocomposites in the microwave and terahertz ranges

doi:10.1016/j.jmat.2022.06.006

IMR OpenIR

	Influence of N-doping on dielectric properties of carbon-coated copper nanocomposites in the microwave and terahertz ranges
	Huang, Feirong 1; Fan, Shuting 2; Tian, Yuqi 1; Qu, Xinghao 1; Li, Xiyang 1; Qin, MaoFan 1; Muhammad, Javid 1; Zhang, Xuefeng 3; Zhang, Zhidong 4; Dong, Xinglong 1
通讯作者	Dong, Xinglong(dongxl@dlut.edu.cn)
	2022-11-01
发表期刊	JOURNAL OF MATERIOMICS
ISSN	2352-8478
卷号	8 期号:6 页码:1131-1140
摘要	Carbon-coated Cu nanocomposites (Cu@C NCs) consisting of core-shell nanoparticles and nanorods were synthesized by arc discharge plasma under an atmosphere of He and H2 gas, and the N-doping of them was achieved by a post-treatment process using ureal as the precursor. The concentration of N in the N -doped samples varies in the range of 0.62%-2.31 % (in mole), with a transformation from pyrrolic N to graphitic N when increasing the relative content of ureal. Dielectric properties of the NCs without or with N-doping in the microwave and THz bands were investigated. The N-doped samples achieve the enhanced dielectric loss in both microwave and THz bands. In the microwave band, dielectric loss was dominated by interfacial polarization, dipolar polarization, and conduction loss, while in the THz band, plasma resonance, ionic polarization and conduction loss are responsible for the dielectric loss, with a strong absorption characteristic dominated by conductive effect.(c) 2022 The Chinese Ceramic Society. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Cu C nanocomposite Dielectric property N-doping Terahertz frequency
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jmat.2022.06.006
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; [U1908220] ; [51331006]
WOS研究方向	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000893268000005
出版者	ELSEVIER
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175897
专题	中国科学院金属研究所
通讯作者	Dong, Xinglong
作者单位	1.Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Mat Modificat Laser Ion & Electron Beams, Minist Educ, Dalian 116024, Peoples R China 2.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China 3.Hangzhou Dianzi Univ, Inst Adv Magnet Mat, Coll Mat & Environm Engn, Hangzhou 110819, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Huang, Feirong,Fan, Shuting,Tian, Yuqi,et al. Influence of N-doping on dielectric properties of carbon-coated copper nanocomposites in the microwave and terahertz ranges[J]. JOURNAL OF MATERIOMICS,2022,8(6):1131-1140.
APA	Huang, Feirong.,Fan, Shuting.,Tian, Yuqi.,Qu, Xinghao.,Li, Xiyang.,...&Dong, Xinglong.(2022).Influence of N-doping on dielectric properties of carbon-coated copper nanocomposites in the microwave and terahertz ranges.JOURNAL OF MATERIOMICS,8(6),1131-1140.
MLA	Huang, Feirong,et al."Influence of N-doping on dielectric properties of carbon-coated copper nanocomposites in the microwave and terahertz ranges".JOURNAL OF MATERIOMICS 8.6(2022):1131-1140.