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Photothermal Enhancement in Core-Shell Structured Plasmonic Nanoparticles
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
2014 (English)In: Plasmonics, ISSN 1557-1955, Vol. 9, no 3, 623-630 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2014. Vol. 9, no 3, 623-630 p.
Keyword [en]
Plasmonics, Core-shell nanoparticle, Photothermal effect
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-146547DOI: 10.1007/s11468-014-9673-8ISI: 000336021700018ScopusID: 2-s2.0-84900854511OAI: diva2:724179
Swedish Foundation for Strategic Research Swedish Research Council

QC 20140612

Available from: 2014-06-12 Created: 2014-06-12 Last updated: 2014-06-12Bibliographically approved

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Qiu, Min
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