| DOI | Resolve DOI: https://doi.org/10.1021/ja2025189 |
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| Author | Search for: Kelly, Joel A.; Search for: Shukaliak, Amber M.; Search for: Fleischauer, Michael D.1; Search for: Veinot, Jonathan G.C. |
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| Affiliation | - National Research Council of Canada. National Institute for Nanotechnology
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| Format | Text, Article |
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| Subject | FTIR; Near-IR; Partial separation; Photochemical hydrosilylation; Quantum size effects; Silicon nanocrystals; Size-dependent reactivity; Small angle X-ray scattering; Visible and near infrared; Visible spectral regions; Hydrosilylation; X ray scattering; nanocrystal; chemical reaction; hydrosilylation; infrared spectroscopy; photochemistry; photoluminescence; ultraviolet radiation; X ray crystallography |
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| Abstract | We present an investigation into the influence of nanocrystal size on the reactivity of silicon nanocrystals (Si-NCs) in near-UV photochemical hydrosilylation. The size-dependent reactivity of Si-NCs with photoluminescence (PL) in the visible and near-infrared regions was evaluated using PL and Fourier-transform infrared (FTIR) spectroscopy, and small-angle X-ray scattering (SAXS). Under near-UV excitation, Si-NCs with PL in the visible spectral region react faster than Si-NCs with near-IR PL, allowing partial separation of a mixture of Si-NC sizes through hydrosilylation. This is attributed to quantum size effects in the exciton-mediated mechanisms proposed for this reaction. © 2011 American Chemical Society. |
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| Publication date | 2011 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21272028 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 822f70ed-d191-40a2-b574-2a5de334cbe8 |
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| Record created | 2014-05-21 |
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| Record modified | 2020-04-21 |
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