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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.chemmater.8b03113
|2 doi
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|a pubmed24n0963.xml
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|a (DE-627)NLM289066832
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|a (NLM)30270987
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Pujari, Sidharam P
|e verfasserin
|4 aut
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| 245 |
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|a One-Pot Gram-Scale Synthesis of Hydrogen-Terminated Silicon Nanoparticles
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|c 2018
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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
|b cr
|2 rdacarrier
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|a Date Revised 28.12.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Silicon nanoparticles (Si NPs) are highly attractive materials for typical quantum dots functions, such as in light-emitting and bioimaging applications, owing to silicon's intrinsic merits of minimal toxicity, low cost, high abundance, and easy and highly stable functionalization. Especially nonoxidized Si NPs with a covalently bound coating serve well in these respects, given the minimization of surface defects upon hydrosilylation of H-terminated Si NPs. However, to date, methods to obtain such H-terminated Si NPs are still not easy. Herein, we report a new synthetic method to produce size-tunable robust, highly crystalline H-terminated Si NPs (4-9 nm) using microwave irradiation within 5 min at temperatures between 25 and 200 °C and their further covalent functionalization. The key step to obtain highly fluorescent (quantum yield of 7-16%) green-red Si NPs in one simple step is the reduction of triethoxysilane and (+)-sodium l-ascorbate, yielding routinely ∼1 g of H-Si NPs via a highly scalable route in 5-15 min. Subsequent functionalization via hydrosilylation yielded Si NPs with an emission quantum yield of 12-14%. This approach can be used to easily produce high-quality H-Si NPs in gram-scale quantities, which brings the application of functionalized Si NPs significantly closer
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|a Journal Article
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1 |
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|a Driss, Hafedh
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bannani, Fatma
|e verfasserin
|4 aut
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| 700 |
1 |
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|a van Lagen, Barend
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zuilhof, Han
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Chemistry of materials : a publication of the American Chemical Society
|d 1998
|g 30(2018), 18 vom: 25. Sept., Seite 6503-6512
|w (DE-627)NLM098194763
|x 0897-4756
|7 nnns
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| 773 |
1 |
8 |
|g volume:30
|g year:2018
|g number:18
|g day:25
|g month:09
|g pages:6503-6512
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| 856 |
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|u http://dx.doi.org/10.1021/acs.chemmater.8b03113
|3 Volltext
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|d 30
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|h 6503-6512
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