Synchrotron small angle x-ray scattering study of dye-sensitized/-unsensitized TiO2 nanoparticle colloidal solution
Hong XG(洪新国); Hong, XG; Du, LC; Ye, MP; Weng, YX
刊名CHINESE PHYSICS
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
学科分类Physics
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
文章类型Article
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.
类目[WOS]Physics, Multidisciplinary
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000221271600025
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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238348
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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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.
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