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Biomolecular Self-Assembly of Quantum-Dot Composites

Published online by Cambridge University Press:  15 February 2011

Carl W. Lawton ,
Michael A. Fiddy ,
Geoff Flynn  and
Fadi Aboughanem
Carl W. Lawton
Affiliation:
University of Massachusetts Lowell, Department of Chemical Engineering and the Center for Imaging and Optical Computing, Lowell, MA 01854
Michael A. Fiddy
Affiliation:
University of Massachusetts Lowell, Department of Chemical Engineering and the Center for Imaging and Optical Computing, Lowell, MA 01854
Geoff Flynn
Affiliation:
University of Massachusetts Lowell, Department of Chemical Engineering and the Center for Imaging and Optical Computing, Lowell, MA 01854
Fadi Aboughanem
Affiliation:
University of Massachusetts Lowell, Department of Chemical Engineering and the Center for Imaging and Optical Computing, Lowell, MA 01854
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Abstract

A biomimetic approach utilizing biomolecular self-assembly was used to tailor quantum-dot composites for use as nonlinear optical media. Yeast tRNA was utilized as an ion-exchange/nucleation site within a polymeric matrix (polyacrylamide). Cadmium ion-exchange and subsequent sulfide precipitation resulted in quantum-dot formation. Illumination of samples with an Argon laser (514 nm) utilizing the Z-scan measurement method resulted in χ3 values of +3.7 ×10−6 esu.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 330: Symposium S – Biomolecular Materials by Design , 1993 , 283
Copyright
Copyright © Materials Research Society 1994

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