| Regulation of structural and terahertz properties of TiC nanoparticles by carbon-coating and nitrogen-doping | |
| Huang, Feirong1; Fan, Shuting2; Tian, Yuqi1; Qu, Xinghao1; Li, Xiyang1; Javid, Muhammad1; Zhang, Xuefeng3; Zhang, Zhidong4; Dong, Xinglong1 | |
| Corresponding Author | Dong, Xinglong(dongxl@dlut.edu.cn) |
| 2022-10-01 | |
| Source Publication | JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
 |
| ISSN | 0022-3697 |
| Volume | 169Pages:8 |
| Abstract | 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. |
| Keyword | Titanium carbide Carbon coating nitrogen-doping Terahertz properties Optical conductivity |
| Funding Organization | National Natural Science foundation of China |
| DOI | 10.1016/j.jpcs.2022.110825 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science foundation of China[U1908220] ; National Natural Science foundation of China[51331006] |
| WOS Research Area | Chemistry ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Physics, Condensed Matter |
| WOS ID | WOS:000861660300001 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175911 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Dong, Xinglong |
| Affiliation | 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 |
| Recommended Citation 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. |
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