Aqueous Shape-Controlled Synthesis and Characterization of CdS Nanostructures

作者: 胡鹏飞 * , 鲁波 , 楼燕燕 , 邵敏 , 褚于良 :上海大学微结构重点实验室,上海;

关键词: 硫化镉水相微观结构形貌可控光学性能Cadmium Sulfide Aqueous Microstructure Shape-Controlled Optical Property


Cadmium sulfide microcrystallines with tuning morphologies were prepared with cadmium acetate and thio-acetamide as raw materials by aqueous process under mild temperature. The sphere-like hierarchical and rod-shaped cadmium sulfide nanostructures can be modulated by employing different surfactants. The transmission electron mi-croscopy resolutions indicated that the nanorods actually are one-dimensional assemblies of smaller cadmium sulfide nanounits abiding the oriented assembly mechanism, but the cadmium sulfide spheres are the random aggregations of cadmium sulfide nanograins. We propose that the linear templating effect of surfactant PEG-400 contributes to the rod-like assembly of cadmium sulfide nanounits, while the spherical micelles of anion dodecylbenzenesulfonate induce the spherical aggregation of cadmium sulfide grains. The ultraviolet-visible absorption spectra show that the cadmium sulfide samples all had strong absorption in ultraviolet region with obvious blue shifts. The method provides economi-cally feasible route for controlled synthesis of cadmium sulfide nanocrystals, and may open a new avenue to fabricate other semiconductor nanocrystals.

文章引用: 胡鹏飞 , 鲁波 , 楼燕燕 , 邵敏 , 褚于良 (2013) CdS纳米结构的水相可控合成及表征。 纳米技术, 3, 15-18. doi: 10.12677/NAT.2013.31002


[1] L. M. Qi, H. Cölfen and M. Antonietti. Synthesis and characte-rization of CdS nanoparticles stabilized by double-hydrophilic block copolymers. Nano Letters, 2001, 1(2): 61-65.

[2] W. W. Zhao, P. P. Yu, Y. Shan, J. Wang, J. J. Xu and H. Y. Chen. Exciton-plasmon interactions between CdS quantum dots and Ag nanoparticles in photoelectrochemical system and its biosensing application. Analytical Chemistry, 2012, 84: 5892-5897.

[3] S. M. Wang, P. Liu, X. X. Wang and X. Z. Fu. Homogeneously distributed CdS nanoparticles in nafion membranes: Preparation, characterization, and photocatalytic properties. Langmuir, 2005, 21(25): 11969-11973

[4] N. J. Borys, M. J. Walter, J. Huang, D. V. Talapin and J. M. Lupton. The role of particle morphology in interfacial energy transfer in CdSe/CdS heterostructure nanocrys-tals. Science, 2010, 330(6009): 1371-1374.

[5] X. G. Peng, M. C. Schlamp, A. V. Kadavanich and A. P. Alivisatos. Epitaxial growth of highly luminescent CdSe/CdS core/shell nanocrystals with photostability and electronic accessibility. Journal of the American Chemical Society, 1997, 119(30): 7019- 7029.

[6] A. Datta, P. G. Chavan, F. J. Sheini, M. A. More, D. S. Joag and A. Patra. Growth, optical, and field emission properties of aligned CdS nanowires. Crystal Growth and Design, 2009, 9(9): 4157- 4162.

[7] A. Ghezelbash, B. Koo and B. A. Korgel. Self-assembled stripe patterns of CdS nanorods. Nano Letters, 2006, 6(8): 1832-1836.

[8] T. Hirai, H. Okuboa and I. Komasawa. Incorporation of CdS nanoparticles formed in reverse micelles into silica matrices via a sol-gel process: preparation of nano-CdS containing silica colloids and silica glass. Journal of Materials Chemistry, 2000, 10(11): 2592-2596.

[9] L. Ouyang, K. N. Maher, C. L. Yu, J. McCarty and H. K. Park. Catalyst-assisted solution-liquid-solid synthesis of CdS/CdSe nanorod heterostructures. Journal of the American Chemical Society, 2007, 129(1): 133-138.

[10] R. Banerjee, R. Jayakrishnan and P. Ayyub. Effect of the size- induced structural transformation on the band gap in CdS nano- particles. Journal of Physics Condensed Matter, 2000, 12(50): 10647-10654.