All-inorganic water-dispersible silicon quantum dots: highly efficient near-infrared luminescence in a wide pH range

We report a novel method to prepare silicon quantum dots (Si-QDs) having excellent stability in water without organic-ligands by simultaneously doping phosphorus and boron. The codoped Si-QDs in water exhibit bright size-tunable luminescence in a biological window. The luminescence of codoped Si-QDs...

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Bibliographic Details
Published inNanoscale Vol. 6; no. 1; pp. 122 - 126
Main Authors Sugimoto, Hiroshi, Fujii, Minoru, Fukuda, Yuki, Imakita, Kenji, Akamatsu, Kensuke
Format Journal Article
LanguageEnglish
Published England 07.01.2014
Subjects
Luminescence
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Summary:We report a novel method to prepare silicon quantum dots (Si-QDs) having excellent stability in water without organic-ligands by simultaneously doping phosphorus and boron. The codoped Si-QDs in water exhibit bright size-tunable luminescence in a biological window. The luminescence of codoped Si-QDs is very stable under continuous photoexcitation in water.
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ISSN:2040-3364
2040-3372
DOI:10.1039/c3nr03863g