Photothermal Enhancement in Core-Shell Structured Plasmonic Nanoparticles

被引：0
作者：
Qiang Li
Weichun Zhang
Ding Zhao
Min Qiu
机构：
[1] Zhejiang University,State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering
[2] Royal Institute of Technology,School of Information and Communication Technology
来源：
Plasmonics | 2014年 / 9卷
关键词：
Plasmonics; Core-shell nanoparticle; Photothermal effect;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Plasmonic nanoparticles (NPs) with photothermal effects can be exploited as efficient heat sources in various applications. Here, the photothermal properties in core-shell structured plasmonic NPs, including metal/silica NP, silica/metal NP, and metal/silica/metal NP, are investigated. Compared with bare metal NPs, the core-shell plasmonic NPs not only exhibit extremely agile tunability in the surface plasmon resonances but also show considerably enhanced photothermal effects in terms of the maximum temperature rise. For metal/silica NPs and metal/silica/metal NPs, the SiO2 shells function as effective thermal-protective layers for enhanced photothermal effect. For silica/metal NPs, the SiO2 core and the metal shell show uniform temperature rise. These findings are essential for applying the core-shell structured plasmonic NPs on photothermal imaging, nanofluidics, etc.
引用
收藏
页码：623 / 630
页数：7
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