| Studies on the defect structure for Cu2+ in CdSe nanocrystals | |
| Wu, Shao-Yi1,2; Zhang, Hua-Ming1; Xu, Pei1; Zhang, Shan-Xiang1 | |
| Corresponding Author | Wu, Shao-Yi(wushaoyi@netease.com) |
| 2010 | |
| Source Publication | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
 |
| ISSN | 1386-1425 |
| Volume | 75Issue:1Pages:230-234 |
| Abstract | The defect structure for Cu2+ in CdSe nanocrystals is theoretically studied by analyzing the spin Hamiltonian parameters of this impurity center. This center is ascribed to Cu2+ occupying the octahedral interstitial site, rather than the tetrahedral substitutional Cd2+ site proposed by previous work. The Cu2+ center exhibits slight terragonal elongation distortion (characterized by the elongation parameter rho approximate to 0.03) due to the Jahn-Teller effect. The theoretical spin Hamiltonian parameters and optical transition show good agreement with the experimental data. The above unusual defect structure (occupation and symmetry) for Cu2+ in CdSe nanocrystals is discussed, as compared with the conventional trigonally distorted tetrahedral Cu2+ centers in bulk II-VI semiconductors. (C) 2009 Elsevier B.V. All rights reserved. |
| Keyword | Electron paramagnetic resonance Crystal-fields and spin Hamiltonians Cu2+ CdSe nanocrystals |
| DOI | 10.1016/j.saa.2009.10.016 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Spectroscopy |
| WOS Subject | Spectroscopy |
| WOS ID | WOS:000274773700035 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/101620 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wu, Shao-Yi |
| Affiliation | 1.Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Shao-Yi,Zhang, Hua-Ming,Xu, Pei,et al. Studies on the defect structure for Cu2+ in CdSe nanocrystals[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2010,75(1):230-234. |
| APA | Wu, Shao-Yi,Zhang, Hua-Ming,Xu, Pei,&Zhang, Shan-Xiang.(2010).Studies on the defect structure for Cu2+ in CdSe nanocrystals.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,75(1),230-234. |
| MLA | Wu, Shao-Yi,et al."Studies on the defect structure for Cu2+ in CdSe nanocrystals".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 75.1(2010):230-234. |
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