Title

Preparation of Uncapped CdSe1-xSx Semiconducting Nanocrystals by Mechanical Alloying

Abstract

Composition-tunable ternary CdSe1-xSxnanocrystals are among the most extensively studied alloyed semiconducting quantum dots. They are, however, almost exclusively prepared by wet chemical routes which lead to surface-capped nanoparticles. Herein, we show that simple mechanical alloying can be applied to prepare uncapped CdSe1-xSxnanocrystals through the entire composition range. the resulting nanocrystals have average sizes smaller than 9 nm, are chemically homogenous, and show a linear lattice parameter-composition and close-to-linear band gap-composition relationships, demonstrating the ability for band gap engineering through composition tuning.

Department(s)

Chemistry

International Standard Serial Number (ISSN)

218979

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2011 American Institute of Physics (AIP), All rights reserved.


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