Regulation of structural and terahertz properties of TiC nanoparticles by carbon-coating and nitrogen-doping

doi:10.1016/j.jpcs.2022.110825

IMR OpenIR

	Regulation of structural and terahertz properties of TiC nanoparticles by carbon-coating and nitrogen-doping
	Huang, Feirong 1; Fan, Shuting 2; Tian, Yuqi 1; Qu, Xinghao 1; Li, Xiyang 1; Javid, Muhammad 1; Zhang, Xuefeng 3; Zhang, Zhidong 4; Dong, Xinglong 1
通讯作者	Dong, Xinglong(dongxl@dlut.edu.cn)
	2022-10-01
发表期刊	JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN	0022-3697
卷号	169 页码:8
摘要	Carbon-coated titanium carbide nanocomposites (TiC@C NCs) were synthesized by arc discharge plasma under an atmosphere of Ar and CH4 gas, and nitrogen-doped carbon-coated titanium carbonitride nanocomposites (Ti (C,N)@NC NCs) were also obtained using a mixture gas of N-2 and CH4. Terahertz (THz) optical and dielectric properties of these nanostructures were investigated using a THz time-domain spectrum system, and the extracted conductivity was analyzed to understand the transport mechanism. The dielectric response in these nanostructures is dominated by ionic polarization with a relaxation behavior, and absorption characteristic is free carrier absorption dependent on conductivity. Ti(C,N)@NC NCs achieve the enhanced dielectric response and high absorption loss due to nitrogen-doping increasing charge disorder and conductivity. AC conductivities of the samples were fitted to the universal power low function and indicated that the transport mechanism is electronic hopping.
关键词	Titanium carbide Carbon coating nitrogen-doping Terahertz properties Optical conductivity
资助者	National Natural Science foundation of China
DOI	10.1016/j.jpcs.2022.110825
收录类别	SCI
语种	英语
资助项目	National Natural Science foundation of China[U1908220] ; National Natural Science foundation of China[51331006]
WOS研究方向	Chemistry ; Physics
WOS类目	Chemistry, Multidisciplinary ; Physics, Condensed Matter
WOS记录号	WOS:000861660300001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：8[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/321006/175911
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, Coll Mat & Environm Engn, Inst Adv Magnet Mat, 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. Regulation of structural and terahertz properties of TiC nanoparticles by carbon-coating and nitrogen-doping[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2022,169:8.
APA	Huang, Feirong.,Fan, Shuting.,Tian, Yuqi.,Qu, Xinghao.,Li, Xiyang.,...&Dong, Xinglong.(2022).Regulation of structural and terahertz properties of TiC nanoparticles by carbon-coating and nitrogen-doping.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,169,8.
MLA	Huang, Feirong,et al."Regulation of structural and terahertz properties of TiC nanoparticles by carbon-coating and nitrogen-doping".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 169(2022):8.