Near-Infrared Emitting AgInS2/ZnS Nanocrystals

被引:71
作者
Mao, Baodong [1 ]
Chuang, Chi-Hung [1 ]
McCleese, Christopher [1 ]
Zhu, Junjie [2 ]
Burda, Clemens [1 ]
机构
[1] Case Western Reserve Univ, Dept Chem, Ctr Chem Dynam & Nanomat Res, Cleveland, OH 44106 USA
[2] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, Nanjing 210093, Jiangsu, Peoples R China
关键词
VI SEMICONDUCTOR NANOCRYSTALS; QUANTUM DOTS; CORE/SHELL NANOCRYSTALS; LUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES; FACILE SYNTHESIS; CATION-EXCHANGE; NANOPARTICLES; TERNARY; PHOTOLUMINESCENCE;
D O I
10.1021/jp500872w
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Near-infrared emitting AgInS2/ZnS nanocrystals were synthesized by carefully controlling the growth conditions in a Ag/In/Zn/S solution with less zinc relative to the other precursors. The role of having a smaller amount of zinc (8 atom %) was systematically investigated in an effort to understand the mechanism of the largely red-shifted emission. The AgInS2/ZnS nanocrystals can be transferred to aqueous solutions while retaining the emission intensity. The near-infrared emission and solubility in aqueous solutions make AgInS2/ZnS nanocrystals excellent candidates for bioimaging and photocatalytic applications.
引用
收藏
页码:13883 / 13889
页数:7
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