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| Far-infrared characteristics of ZnS nanoparticles measured by terahertz time-domain spectroscopy | |
| Han, JG(韩家广）; Zhang, WL; Chen, W; Thamizhmani, L; Azad, AK; Zhu, ZY（朱志远）; Zhang, WL (reprint author), Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA | |
| 2006 | |
| Source Publication | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| ISSN | 1520-6106 |
| Volume | 110Issue:5Pages:1989 |
| Abstract | The optical and dielectric properties of ZnS nanoparticles are studied by use of terahertz time-domain spectroscopy (THz-TDS) over the frequency range from 0.3 to 3.0 THz. The effective medium approach combined with the pseudo-harmonic model of the dielectric response, where nanoparticles are embedded in the host medium, provides a good fit on the experimental results. The extrapolation of the measured data indicates that the absorption is dominated by the transverse optical mode localized at 11.6 +/- 0.2 THz. Meanwhile, the low-frequency phonon resonance of ZnS nanoparticles is compared with the single-crystal ZnS. The THz-TDS clearly reveals the remarkable distinction in the low-frequency phonon resonances between ZnS nanoparticles and single-crystal ZnS. The results demonstrate that the acoustic phonons become confined in small-size nanoparticles. |
| Subject Area | Physics |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000235284300007 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/8283 |
| Collection | 中科院上海应用物理研究所2004-2010年 |
| Corresponding Author | Zhang, WL (reprint author), Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA |
| Recommended Citation GB/T 7714 | Han, JG,Zhang, WL,Chen, W,et al. Far-infrared characteristics of ZnS nanoparticles measured by terahertz time-domain spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2006,110(5):1989. |
| APA | Han, JG.,Zhang, WL.,Chen, W.,Thamizhmani, L.,Azad, AK.,...&Zhang, WL .(2006).Far-infrared characteristics of ZnS nanoparticles measured by terahertz time-domain spectroscopy.JOURNAL OF PHYSICAL CHEMISTRY B,110(5),1989. |
| MLA | Han, JG,et al."Far-infrared characteristics of ZnS nanoparticles measured by terahertz time-domain spectroscopy".JOURNAL OF PHYSICAL CHEMISTRY B 110.5(2006):1989. |
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