Phosphine-free Synthesis and Photoluminescence Properties of ZnSe∶Cu/ZnSe/ZnS Core/shell Nanocrystals

摘要：

　　High quality zinc blende ZnSe nanocrystals were successfully synthesized using an environmentally friendierly phosphine-free method.Using pre-synthesized ZnSe nanocrystals as core to dope Cu2+ ions,we obtained ZnSe∶Cu/ZnSe and ZnSe∶Cu/ZnSe/ZnS core/shell nanocrystals.Absorption spectruscopy,photoluminescence (PL) spectruscopy,X-ray diffraction (XRD),and transmission electron microscopy (TEM) were used to characterize the structures and properties of as-synthesized three kinds of nanocrystals.The results demonstrated that nanocrystals had well dispersion and narrow size-distributions,and the PL emission peak of as-synthesized ZnSe∶Cu/ZnSe/ZnS core/shell nanocrystals could be easily tuned from 480 nm to 520 nm by using different sized ZnSe cores.

关键词： Phosphine-free synthesis Nanocrystals ZnSe∶Cu/ZnSe/ZnS Photoluminescence property

作者: Jinzhong Niu Guimin Tian Lili Zheng Yongguang Cheng Shuangmei Zhu Haoshan Hao

作者单位: Department of Mathematical and Physical Sciences, Henan Institute of Engineering, Zhengzhou,451191, P.R.China

会议类型: 国际会议

会议名称: 2012 2nd International Symposium on Chemical Engineering and Material Properties(ISCEMP2012)(2012第二届化学工程与材料特性国际研讨会)

会议地点: 太原

会议语种:英文

页码: 12-16

在线出版日期: 2012-06-23（万方平台首次上网日期，不代表论文的发表时间）