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Influence of Halides on the Optical Properties of Silicon Quantum Dots

Dasog, Mita and Bader, Kathrin and Veinot, Jonathan G. C. (2015) Influence of Halides on the Optical Properties of Silicon Quantum Dots. Chemistry of Materials, 27 (4). pp. 1153-1156. ISSN 0897-4756. https://resolver.caltech.edu/CaltechAUTHORS:20150409-125441184

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Abstract

Silicon quantum dots (Si-QDs) have received substantial attention over the last two decades owing to their abundance, biocompatibility, and optical properties. Similar to their group II−VI and III−V quantum dot counterparts, hydride-terminated Si-QDs with diameters smaller than 5 nm can exhibit size-dependent photoluminescence (PL) in the visible spectral region. However, the hydride surface is highly susceptible to oxidation and requires further modification to passivate it and render the QDs soluble in common solvents.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/acs.chemmater.5b00115 DOIArticle
http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.5b00115PublisherArticle
http://pubs.acs.org/doi/suppl/10.1021/acs.chemmater.5b00115PublisherSupporting Information
ORCID:
AuthorORCID
Dasog, Mita0000-0002-7846-3414
Additional Information:© 2015 American Chemical Society. Received: January 12, 2015; Revised: February 4, 2015; Published: February 4, 2015. The authors acknowledge continued generous funding from the National Engineering Research Council of Canada (NSERC). M.D. thanks Alberta Innovates Technology Futures, Killam Trusts, and NSERC for scholarships. We also thank W. C. Moffat and G. Kaufmann for assistance with FTIR and Raman spectroscopy, respectively. The staff at the Alberta Centre for Surface Engineering and Sciences (ACSES) is thanked for XPS analysis. K. Cui at the National Institute of Nanotechnology (NINT) and T. Purkait are thanked for TEM analysis. G. de los Reyes is thanked for assistance with lifetime measurements. N. S. Lewis, R. Snitynsky, and N. Plymale are thanked for useful discussion.
Funders:
Funding AgencyGrant Number
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Alberta Innovates Technology FuturesUNSPECIFIED
Killam TrustUNSPECIFIED
Issue or Number:4
Record Number:CaltechAUTHORS:20150409-125441184
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150409-125441184
Official Citation:Influence of Halides on the Optical Properties of Silicon Quantum Dots Mita Dasog, Kathrin Bader, and Jonathan G. C. Veinot Chemistry of Materials 2015 27 (4), 1153-1156 DOI: 10.1021/acs.chemmater.5b00115
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56536
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Apr 2015 20:03
Last Modified:03 Oct 2019 08:14

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