【摘 要】
：
Ag+-doped ZnS nanocrystals surface-capped with thiourea(expressed as ZnS:Ag/thiourea) were synthesized through sol-gel method with thiourea as a surface modifie
【机 构】
：
College of Chemistry and Chemical Engineering,College of Chemistry and Material Science
【基金项目】
：
福建省教育部科学基金;The Science Foundation of Department of Science and Technology of Fujian Province
论文部分内容阅读
Ag+-doped ZnS nanocrystals surface-capped with thiourea(expressed as ZnS:Ag/thiourea) were synthesized through sol-gel method with thiourea as a surface modifier and characterized by X-ray diffraction(XRD), transmission electron microscope(TEM), X-ray fluorescence spectrum(XRF), infrared spectrum(IR), UV-Vis absorption spectrum(UV-Vis), and photoluminescence spectrum(PL). The results show that Ag+ ions are doped in ZnS nanocrystals, and the sulfur atoms in thiourea molecules coordinate with metal ions on the surface of the nanocrystals. The spherical ZnS:Ag/thiourea nanocrystals with an average diameter of 5 nm have good fluorescent characteristics, and therefore have great potential for use in molecular assembly and novel luminescence materials.
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