Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 37, Issue -, Pages 1-4Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2013.09.020
Keywords
Photoelectrochemical corrosion; Luminescence; Semiconductor; Quantum-dot
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Funding
- National Science Foundation [DMR-0907117]
- European Union [274046]
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Silicon carbide (SiC) quantum dots (QDs) are eminent candidates for various applications ranging from bioimaging and energy conversion, to optics. In this communication we describe a new top-down method for producing SiC QDs (<10 nm) from bulk powder (>50nm) and slurry. Photo-assisted electrochemical etching is employed to obtain the quantum-sized clusters. We show that the process (hence, the amount of QDs synthesized as well as their size) can be controlled via regulating time as confirmed by both high-resolution transmission electron microscopy and photoluminescence data. The presented method may serve as a new avenue to prepare size-controlled nanoparticles of different semiconductors. (C) 2013 Elsevier B.V. All rights reserved.
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