Synthesis and photoluminescence properties of zinc sulfide nanoparticles doped with copper using effective surfactants

作     者：G.Murugadoss 

作者机构：Centre for Nanoscience and TechnologyAnna University 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2013年第11卷第5期

页      面：566-573页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

主　　题：NanoparticlesDopingSurfactantQuantum confinementRed shift 

摘      要：Zinc sulfide （ZnS）, various concentrations of Cu2＋ （0.25%-1.25%）-doped ZnS and ZnS：Cu2~ nanoparticles capped with various surfactants have been successfully synthesized by a chemical precipitation method in ambient air at 80 ~C. The synthesized particles were characterized by UV-visible absorption （UV-vis）, X-ray diffraction （XRD）, transmission electron microscopy （TEM）, and Fourier transform infrared （FT-1R） and photoluminescence （PL） spectroscopy. The absorption peaks of the synthesized nanoparticles were noticeably blue-shifted from the bulk material. The XRD analysis confirmed the formation of a cubic phase for all samples. The average size of the particles ranged from 3.2 to 5.3 nm. The TEM analysis showed that the particles were highly monodispersed and spherical in shape. Particles with increased Cu2＋ concentrations had a red shift in their PL emission spectra. Enhanced PL emissions were observed for surfactant-capped particles. The experimental results indicate that, as expected, the PL spectrum confirms the presence of Cu2＋ ions in the ZnS nanoparticles.