Issue 1, 2014
From the journal:

Nanoscale

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

Hiroshi Sugimoto,a   Minoru Fujii,*a   Yuki Fukuda,a   Kenji Imakitaa  and  Kensuke Akamatsub  

* Corresponding authors

a Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan
E-mail: fujii@eedept.kobe-u.ac.jp

b Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojimaminami, Chuo-ku, Kobe 650-0047, Japan

Abstract

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.

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

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Article information

DOI
https://doi.org/10.1039/C3NR03863G
Article type
Communication
Submitted
26 Jul 2013
Accepted
08 Oct 2013
First published
10 Oct 2013

Nanoscale, 2014,6, 122-126

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

H. Sugimoto, M. Fujii, Y. Fukuda, K. Imakita and K. Akamatsu, Nanoscale, 2014, 6, 122 DOI: 10.1039/C3NR03863G

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