The formation of CdS nanocrystals in silica gels by gamma-irradiation and their optical properties
文献类型：期刊论文
| 作者 | Pan, AL ; Ma, JG ; Yan, XZ ; Zou, BS |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2004 |
| 卷号 | 16期号:18页码:3229 |
| 关键词 | CADMIUM-SULFIDE NANOPARTICLES VI SEMICONDUCTOR NANOCRYSTALS QUANTUM DOTS PALLADIUM NANOPARTICLES COLLOIDAL METAL FILMS SIZE PARTICLES PHOTOLUMINESCENCE ABSORPTION |
| ISSN号 | 0953-8984 |
| 通讯作者 | Zou, BS (reprint author), Chinese Acad Sci, Inst Phys, Nanoscale Phys & Devices Lab, Beijing 100080, Peoples R China. |
| 中文摘要 | Silica gels dispersed with nanoscale US particles were prepared by the solgel process combined with gamma-irradiation at room temperature and in ambient pressure. X-ray diffraction (XRD) and transmission electron microscopy have revealed the existence of US nanocrystals, as well as their structures and size distributions. The silica matrix affects the crystal structure of the US particles produced. A prominent quantum size effect was observed through the absorption and luminescence spectra of samples irradiated for different periods of time. The most interesting phenomenon is that on increasing the irradiation time, the surface-state emission disappears, and simultaneously band edge emission appears and becomes even stronger with longer irradiation: this is thought to be due to the passivation effect by the surrounding matrix through the interface electrostatic interactions around the particles. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45166]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Pan, AL,Ma, JG,Yan, XZ,et al. The formation of CdS nanocrystals in silica gels by gamma-irradiation and their optical properties[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2004,16(18):3229. |
| APA | Pan, AL,Ma, JG,Yan, XZ,&Zou, BS.(2004).The formation of CdS nanocrystals in silica gels by gamma-irradiation and their optical properties.JOURNAL OF PHYSICS-CONDENSED MATTER,16(18),3229. |
| MLA | Pan, AL,et al."The formation of CdS nanocrystals in silica gels by gamma-irradiation and their optical properties".JOURNAL OF PHYSICS-CONDENSED MATTER 16.18(2004):3229. |
入库方式： OAI收割
来源：物理研究所
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