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Utilization of laser ablation in aqueous solution for observation of photoinduced shape conversion of silver nanoparticles in citrate solutions

Paper ID Volume ID Publish Year Pages File Format Full-Text
26732 43973 2011 8 PDF Available
Title
Utilization of laser ablation in aqueous solution for observation of photoinduced shape conversion of silver nanoparticles in citrate solutions
Abstract

Photoinduced shape conversion of silver nanoparticles in citrate solutions was examined using silver nanoparticles prepared by laser ablation. Nowadays, photoinduced shape conversion of silver nanoparticles in citrate solution attracts much attention as a novel technique to produce anisotropic-shaped nanocrystals in a simple manner. So far, the observations of the shape conversion have been carried out using source silver nanoparticles prepared by chemical synthesis. In this work, we demonstrate that silver nanoparticles prepared by laser ablation in liquids are an appropriate system to investigate the photoinduced shape conversion due to the simple preparation method and absence of unnecessary components in colloidal solution. Using this system, we have confirmed that particle size plays a critical role in the shape conversion. In addition, some novel information was obtained: the adsorption conditions of citrate are also important, and polyvinylpyrrolidone promote the conversion rate.

► Photoinduced shape conversion of silver nanoparticles in citrate solutions was examined. ► Silver nanoparticles were prepared by laser ablation in liquids. ► Particle size plays a critical role in the shape conversion. ► The adsorption conditions of citrate are important. ► polyvinylpyrrolidone promote the conversion rate.

Keywords
Silver; Nanoparticles; Laser ablation; Post laser irradiation; Photoirradiation; Shape conversion; Nanocrystals; Citrate; Polyvinylpyrrolidone
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Utilization of laser ablation in aqueous solution for observation of photoinduced shape conversion of silver nanoparticles in citrate solutions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 221, Issues 2–3, 25 June 2011, Pages 224–231
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us