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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5b01246
|2 doi
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|a pubmed24n0831.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Yu, Yixuan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Synthesis and Ligand Exchange of Thiol-Capped Silicon Nanocrystals
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 24.08.2015
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|a Date Revised 23.06.2015
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Hydride-terminated silicon (Si) nanocrystals were capped with dodecanethiol by a thermally promoted thiolation reaction. Under an inert atmosphere, the thiol-capped nanocrystals exhibit photoluminescence (PL) properties similar to those of alkene-capped Si nanocrystals, including size-tunable emission wavelength, relatively high quantum yields (>10%), and long radiative lifetimes (26-280 μs). X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy confirmed that the ligands attach to the nanocrystal surface via covalent Si-S bonds. The thiol-capping layer, however, readily undergoes hydrolysis and severe degradation in the presence of moisture. Dodecanethiol could be exchanged with dodecene by hydrosilylation for enhanced stability
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|a Journal Article
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1 |
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|a Rowland, Clare E
|e verfasserin
|4 aut
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1 |
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|a Schaller, Richard D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Korgel, Brian A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 31(2015), 24 vom: 23. Juni, Seite 6886-93
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:31
|g year:2015
|g number:24
|g day:23
|g month:06
|g pages:6886-93
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|u http://dx.doi.org/10.1021/acs.langmuir.5b01246
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