Luminescent silicon nanoparticles prepared by ultra short pulsed laser ablation in liquid for imaging applications

被引：83

作者：

Intartaglia, R. ^{[1
]}

Bagga, K. ^{[1
]}

Scotto, M. ^{[1
]}

Diaspro, A. ^{[1
]}

Brandi, F. ^{[1
]}

机构：

[1] Ist Italiano Tecnol, Dept Nanophys, I-16163 Genoa, Italy

来源：

OPTICAL MATERIALS EXPRESS | 2012年 / 2卷 / 05期

关键词：

SI NANOPARTICLES; QUANTUM DOTS; NANOCRYSTALS; PHOTOSENSITIZERS; OXYGEN; WATER; OXIDE;

D O I：

10.1364/OME.2.000510

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Heavy-metal-free semiconductor material like Silicon Nanoparticle (Si-NPs) is attracting scientists because of their diverse applications in biomedical field. In this work, pulsed laser ablation of silicon in aqueous solution is employed to generate Si-NPs in one step avoiding use of chemical precursors. Characterization by absorption, electron and photoluminescence analysis proves the generation of luminescent Si-NPs. The productivity rate of Si-NPs is investigated by Inductively Coupled Plasma Spectrometry. Furthermore, Si-NPs quantum yield and confocal microscopy studies corroborate the potential use of these biocompatible Si-NPs for imaging applications. (C) 2012 Optical Society of America

引用

页码：510 / 518

页数：9

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