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| Terahertz dielectric properties and low-frequency phonon Resonances of ZnO nanostructures | |
| Han, JG（韩家广）; Zhang, W; Chen, W; Ray, S; Zhang, J; He, MX; Azad, AK; Zhu, ZY(朱志远）; Zhang, W (reprint author), Oklahoma State Univ, Sch Elect & Comp Engn, Oklahoma City, OK 74078 USA | |
| 2007 | |
| Source Publication | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| ISSN | 1932-7447 |
| Volume | 111Issue:35Pages:13000 |
| Abstract | Far-infrared optical and dielectric properties of nanostructured ZnO of different morphologies are characterized by terahertz time-domain spectroscopy. Frequency-dependent complex dielectric function, power absorption, and refractive index are experimentally measured in the terahertz regime. The results are analyzed and well fit with dielectric theories combined with effective medium models. Different ZnO nanostructure morphologies exhibit different characteristics due to diverse resonance mechanisms dominated by either free electrons or phonons. The dielectric function of tubular and prismlike ZnO structures exhibits the Drude-like behavior, while it is dominated by the low-frequency phonon resonances for nanowires. Additionally, the overall low-frequency phonon resonances of these nanostructures are measured by Raman scattering spectroscopy, showing good consistency with those of bulk wurtzite single-crystal ZnO. |
| Subject Area | Nuclear Science & Technology ; Physics |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/7853 |
| Collection | 中科院上海应用物理研究所2004-2010年 |
| Corresponding Author | Zhang, W (reprint author), Oklahoma State Univ, Sch Elect & Comp Engn, Oklahoma City, OK 74078 USA |
| Recommended Citation GB/T 7714 | Han, JG,Zhang, W,Chen, W,et al. Terahertz dielectric properties and low-frequency phonon Resonances of ZnO nanostructures[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(35):13000. |
| APA | Han, JG.,Zhang, W.,Chen, W.,Ray, S.,Zhang, J.,...&Zhang, W .(2007).Terahertz dielectric properties and low-frequency phonon Resonances of ZnO nanostructures.JOURNAL OF PHYSICAL CHEMISTRY C,111(35),13000. |
| MLA | Han, JG,et al."Terahertz dielectric properties and low-frequency phonon Resonances of ZnO nanostructures".JOURNAL OF PHYSICAL CHEMISTRY C 111.35(2007):13000. |
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