title: All-inorganic water-dispersible silicon quantum dots: highly efficient near-infrared luminescence in a wide pH range.
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.
authors.affiliation: Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan. fujii@eedept.kobe-u.ac.jp.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sugimoto
authors.forename: Minoru
authors.initials: M
authors.lastname: Fujii
authors.forename: Yuki
authors.initials: Y
authors.lastname: Fukuda
authors.forename: Kenji
authors.initials: K
authors.lastname: Imakita
authors.forename: Kensuke
authors.initials: K
authors.lastname: Akamatsu