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Nanophotothermolysis of Poly-(vinyl) Alcohol Capped Silver Particles
Authors:Suraj Kumar Tripathy
Affiliation:(1) Division of Advanced Materials Engineering, College of Engineering, Chonbuk National University, Chonju, 561-756, South Korea
Abstract:Laser-induced thermal fusion and fragmentation of poly-(vinyl) alcohol (PVA)-capped silver nanoparticles in aqueous medium have been reported. PVA-capped silver nanoparticles with an average size of 15 nm were prepared by chemical reduction technique. The laser-induced photo-fragmentation of these particles has been monitored by UV-visible spectroscopy and transmission electron microscopy. The morphological changes induced by thermal and photochemical effects were found to influence the optical properties of these nanoparticles.
Keywords:Nanoparticles  PVA  Silver  Surface plasmon  Thermolysis
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