Synthesis of high-quality CdSe nanocrystals in heat transfer fluids

被引:2
作者
Asokan, S [1 ]
Carreon, AR [1 ]
Mu, ZZ [1 ]
Krueger, KM [1 ]
Alkhawaldeh, A [1 ]
Colvin, VL [1 ]
Wong, MS [1 ]
机构
[1] Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77251 USA
来源
NANOBIOPHOTONICS AND BIOMEDICAL APPLICATIONS II | 2005年 / 5705卷
关键词
quantum dots; CdSe; nanoparticle; fluorescence; heat transfer fluids;
D O I
10.1117/12.597272
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Fluorescent semiconductor nanoparticles, or quantum dots, have potential uses as an optical material, in which the optoelectronic properties can be tuned precisely by particle size. Advances in chemical synthesis have led to improvements in size and shape control, cost, and safety. A limiting step in large-scale production is identified to be the raw materials cost, in which a common synthesis solvent, octadecene, accounts for most of the materials cost in a batch of CdSe quantum dots. Thus, less expensive solvents are needed. In this paper, we identify heat transfer fluids, a class of organic liquids commonly used in chemical process industries to transport heat between unit operations, as alternative solvents for quantum dot synthesis. We specifically show that two heat transfer fluids can be used successfully in the synthesis of CdSe quantum dots with uniform particle sizes. We observe differences in particle growth using the various solvents.
引用
收藏
页码:60 / 67
页数:8
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