Journal of Colloid and Interface Science 461 (2016) 15–19 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Short Communication Au and Ag/Au double-shells hollow nanoparticles with improved near infrared surface plasmon and photoluminescence properties Rajib Ghosh Chaudhuri, Santanu Paria Interfaces and Nanomaterials Laboratory, Department of Chemical Engineering, National Institute of Technology, Rourkela 769008, Orissa, India graphical a bstract Calcination Hollow Au 0.8 Core/Shell Hollow Au (S/Au) 0.7 Hollow Ag/Au 0.6 0.5 0.4 Core (S) 0.3 0.2 0.1 400 600 800 1000 1200 Wavelength (nm) Calcination Core/Shell Core/Shell/Shell (S/Ag) Hollow Ag/Au (S/Ag/Au) article i nfo abstract Article history: Metallic hollow nanoparticles have been continuously drawing researcher’s attention because of their Received 19 July 2015 excellent improved performance compare to the spherical particles in catalysis, photonics, information Revised 2 September 2015 storage, surface-enhanced Raman scattering, and sensors applications. In this article we demonstrate a Accepted 2 September 2015 novel route for the synthesis of single and double-shells Au and Ag/Au bimetallic hollow nanoparticles Available online 5 September 2015 using elemental sulfur as a sacriﬁcial core. We also investigate the optical properties of these new hollow particles and compare with that of pure spherical nanoparticles. The
Journal of Colloid and Interface Science – Elsevier
Published: Jan 1, 2016
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