Synthesis of high-quality CdSe nanocrystals in heat transfer fluids

Subashini Asokan; Alessandra R. Carreon; Zuze Mu; Karl M. Krueger; Ammar Alkhawaldeh; Vicki L. Colvin; Michael S. Wong

doi:10.1117/12.597272

28 April 2005 Synthesis of high-quality CdSe nanocrystals in heat transfer fluids

Subashini Asokan, Alessandra R. Carreon, Zuze Mu, Karl M. Krueger, Ammar Alkhawaldeh, Vicki L. Colvin, Michael S. Wong

Proceedings Volume 5705, Nanobiophotonics and Biomedical Applications II; (2005) https://doi.org/10.1117/12.597272
Event: SPIE BiOS, 2005, San Jose, CA, United States

Abstract

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.

Citation Download Citation

Subashini Asokan, Alessandra R. Carreon, Zuze Mu, Karl M. Krueger, Ammar Alkhawaldeh, Vicki L. Colvin, and Michael S. Wong "Synthesis of high-quality CdSe nanocrystals in heat transfer fluids", Proc. SPIE 5705, Nanobiophotonics and Biomedical Applications II, (28 April 2005); https://doi.org/10.1117/12.597272

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