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The Facile Synthesis of Nanocrystalline Semiconductor Quantum Dots

Published online by Cambridge University Press:  21 March 2011

Michael S. Wong  and
Galen D. Stucky
Michael S. Wong
Affiliation:
University of California, Department of Chemistry and Biochemistry, Santa Barbara, CA 93106
Galen D. Stucky
Affiliation:
University of California, Department of Chemistry and Biochemistry, Santa Barbara, CA 93106
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Abstract

Current synthetic techniques to high-quality quantum dots (“QD's”) involve organometallic precursors that are hazardous and expensive and require they be rapidly injected into an extremely hot solvent to form the QD's. A new method for synthesizing high-quality CdSe QD's while circumventing these problems has been developed. Different cadmium salts were studied as Cd precursors alternative to dimethylcadmium. High-quality CdSe QD's were found possible with cadmium acetate as the Cd precursor. Changes in solvent temperature and reaction time had a systematic effect on QD particle sizes and the accompanying optical properties. These preliminary results point to a general method for producing high-quality QD's that is safer and much more versatile.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 676: Symposium Y – Synthesis, Functional Properties and Applications of Nanostructures , 2001 , Y2.3
Copyright
Copyright © Materials Research Society 2001

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References

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