Tuning the plasmon resonance of metallic tin nanocrystals in Si-based materials

被引：15
|
作者：
Kjeldsen, Mads Mogelmose [1 ,2 ]
Hansen, John Lundsgaard [1 ,2 ]
Pedersen, Thomas Garm [3 ]
Gaiduk, Peter [4 ]
Larsen, Arne Nylandsted [1 ,2 ]
机构：
[1] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark
[2] Aarhus Univ, iNANO, DK-8000 Aarhus C, Denmark
[3] Aalborg Univ, Dept Phys & Nanotechnol, DK-9220 Aalborg OE, Denmark
[4] Belorussian State Univ, Dept Phys Elect, Minsk 220030, BELARUS
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2010年 / 100卷 / 01期
关键词：
OPTICAL-PROPERTIES; AMORPHOUS-SILICON; ABSORPTION; NANOPARTICLES; SILVER;
D O I：
10.1007/s00339-010-5805-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The optical properties of metallic tin nanoparticles embedded in silicon-based host materials were studied. Thin films containing the nanoparticles were produced using RF magnetron sputtering followed by ex situ heat treatment. Transmission electron microscopy was used to determine the nanoparticle shape and size distribution; spherical, metallic tin nanoparticles were always found. The presence of a localized surface plasmon resonance in the nanoparticles was observed when SiO2 and amorphous silicon were the host materials. Optical spectroscopy revealed that the localized surface plasmon resonance is at approximately 5.5 eV for tin nanoparticles in SiO2, and at approximately 2.5 eV in amorphous silicon. The size of the tin nanoparticles in SiO2 can be varied by changing the tin content of the films; this was used to tune the localized surface plasmon resonance.
引用
收藏
页码：31 / 37
页数：7
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