Light emission from silicon/gold nanoparticle systems

被引：18

作者：

Bassu, M. ^{[1
]}

Strambini, M. L. ^{[1
]}

Barillaro, G. ^{[1
]}

Fuso, F. ^{[1
,2
]}

机构：

[1] Univ Pisa, Dipartimento Ingn Informz, I-56122 Pisa, Italy

[2] Univ Pisa, Dipartimento Fis Enrico Fermi, I-56127 Pisa, Italy

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 14期

关键词：

POROUS SILICON; PHOTOLUMINESCENCE; PARTICLES; MOLECULES;

D O I：

10.1063/1.3483617

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescent nanostructured semiconductor/metal systems consisting of silicon nanocrystals and gold nanoparticles are obtained by gold-catalyzed chemical etching. The interplay between silicon and gold nanostructures is investigated by photoluminescence spectroscopy upon continuous and pulsed excitation, both at room and low temperature. Comparison with reference samples, obtained removing gold particles by selective etching, highlights an enhanced emission in samples containing silicon and gold nanoparticles, explained in terms of both surface modifications and optical coupling between emitting nanocrystals and nanoparticles featuring localized plasmon resonances. (C) 2010 American Institute of Physics. [doi:10.1063/1.3483617]

引用

页数：3

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