Synchrotron small angle x-ray scattering study of dye-sensitized/-unsensitized TiO2 nanoparticle colloidal solution
文献类型：期刊论文
| 作者 | Hong XG(洪新国); Hong, XG; Du, LC; Ye, MP; Weng, YX |
| 刊名 | CHINESE PHYSICS
 |
| 出版日期 | 2004 |
| 卷号 | 13期号:5页码:720-724 |
| 关键词 | TiO2 nano-particles small angle x-ray scattering colloid solar cell |
| 通讯作者 | Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China |
| 英文摘要 | The wide-gap semiconductor TiO2 nanoparticles with and without dye sensitization have been studied by small angle x-ray scattering using synchrotron radiation. Surface properties of the colloidal TiO2 nanoparticles have been analysed in terms of the surface fractal dimensions (D), showing that D, changes from 3.25 to 2.34 when TiO2 nanoparticles are sensitized by ATRA (all-trans-retinoic acid), which reveals that the surface of the particles become relatively smooth after dye sensitization. The size distribution of gyration radius of TiO2 nanoparticles in the colloids M(R-g) has been successfully determined by the Shull-Roess method. The main peak of M(R-g) for the unsensitized TiO2 colloid is located at 2.1nm, corresponding to a spherical diameter of 5.4nm, and this value for the ATRA sensitized TiO2 increases to 2.4nm, indicating a spherical diameter of 6.4nm. Such a size enlargement of TiO2 nanoparticles suggests that there is a coating of ATRA on the TiO2 surface, supporting the view that a monolayer of the dye has been attached to the surface of the TiO2 nanoparticle. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000221271600025 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238348]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Hong XG,Hong, XG,Du, LC,et al. Synchrotron small angle x-ray scattering study of dye-sensitized/-unsensitized TiO2 nanoparticle colloidal solution[J]. CHINESE PHYSICS,2004,13(5):720-724. |
| APA | 洪新国,Hong, XG,Du, LC,Ye, MP,&Weng, YX.(2004).Synchrotron small angle x-ray scattering study of dye-sensitized/-unsensitized TiO2 nanoparticle colloidal solution.CHINESE PHYSICS,13(5),720-724. |
| MLA | 洪新国,et al."Synchrotron small angle x-ray scattering study of dye-sensitized/-unsensitized TiO2 nanoparticle colloidal solution".CHINESE PHYSICS 13.5(2004):720-724. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。