Fabrication and Characterization of CdSe/ZnS-QDs Incorporated Microbeads for Ultra-sensitive Sensor Applications

被引:1
|
作者
Lee, Dong-Sup [1 ,2 ]
Lee, Jong-Chul [1 ]
Lee, Jong-Heun [2 ]
Koo, Eun-hae [1 ]
机构
[1] Korea Inst Ceram Engn & Technol, Future Convergence Ceram Div, BioIT Convergence Ctr, Seoul 153801, South Korea
[2] Korea Univ, Dept Mat Sci & Engn, Seoul 136701, South Korea
关键词
CdSe/ZnS; Quantum dot; Mesoporous silica; Nanobeads; Incorporation;
D O I
10.4191/KCERS.2010.47.2.189
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Compared with organic fluorophores, semiconductor quantum dots (QDs) have the better properties such as photostability, narrow emission spectra coupled to tunable photoluminescent emissions and exceptional resistance to both photo bleaching and chemical degradation. In this work, CdSe/ZnS QDs nanobeads were prepared by the incorporation of CdSe/ZnS QDs with mesoporous silica to use as the optical probe for detecting toxic and bio-materials with high sensitivity, CdSe/ZnS core/shell QDs were synthesized from the precursors such as CdO and zinc stearate with the lower toxicity than pyrotic precursors. The QD-nanobeads were characterized by transmission electron microscopy, FL microscopy, UV-Vis and PL spectroscopy, respectively.
引用
收藏
页码:189 / 194
页数:6
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