Studies on the defect structure for Cu(2+) in CdSe nanocrystals
文献类型：期刊论文
| 作者 | S. Y. Wu ; H. M. Zhang ; P. Xu ; S. X. Zhang |
| 刊名 | Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
 |
| 出版日期 | 2010 |
| 卷号 | 75期号:1页码:230-234 |
| 关键词 | Electron paramagnetic resonance Crystal-fields and spin Hamiltonians Cu(2+) CdSe nanocrystals atomic screening constants electron-paramagnetic-res quantum dots fine-structure capped cdse scf functions epr ions nanoparticles resonance |
| ISSN号 | 1386-1425 |
| 中文摘要 | The defect structure for Cu(2+) in CdSe nanocrystals is theoretically studied by analyzing the spin Hamiltonian parameters of this impurity center. This center is ascribed to Cu(2+) occupying the octahedral interstitial site, rather than the tetrahedral substitutional Cd(2+) site proposed by previous work. The Cu(2+) 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 Cu(2+) in CdSe nanocrystals is discussed, as compared with the conventional trigonally distorted tetrahedral Cu(2+) centers in bulk II-VI semiconductors. (C) 2009 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31586]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | S. Y. Wu,H. M. Zhang,P. Xu,et al. Studies on the defect structure for Cu(2+) in CdSe nanocrystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2010,75(1):230-234. |
| APA | S. Y. Wu,H. M. Zhang,P. Xu,&S. X. Zhang.(2010).Studies on the defect structure for Cu(2+) in CdSe nanocrystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,75(1),230-234. |
| MLA | S. Y. Wu,et al."Studies on the defect structure for Cu(2+) in CdSe nanocrystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 75.1(2010):230-234. |
入库方式： OAI收割
来源：金属研究所
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