ZnS:Ag luminescent nanoparticles synthesized with different molar ratio of S/Zn
ZnS:Ag (Ag+-doped ZnS) nanoparticles have been synthesized through the hydrothermal route, and the effects of the molar ratio of S/Zn in reagents have been studied. The products are all cubic sphalerite structure, and the crystallinity is generally increased as this ratio rises. The ratio less than 1 leads to small particles less than 10 nm, and the ratio more than 1 leads to large particles between 20～30 nm. Luminescence properties of samples show significant dependence on the ratio. The sample synthesized using stoichiometric reagents during hydrothermal preparation exhibits the strongest blue emission in this series. There is significant defect luminescence in samples synthesized using nonstoichiometric reagents and the Ag-related luminescence is quenched in them.
ZnS:Ag nanoparticles luminescence hydrothermal synthesis
Hua Qu Lixin Cao Ge Su Wei Liu Yuanguang Sun Bohua Dong
Institute of Material Science and Engineering, Ocean University of China Qingdao 266100, P. R. China
国际会议
青岛
英文
589-592
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）