Formation of highly dispersed AuAg nanoalloys by femtosecond laser irradiation of metal salts in normal hexane

Yuliati Herbani, Takahiro Nakamura, Shunichi Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The interaction of an intense femtosecond laser pulses with a neat liquid solvent has been known to produce a number of highly reactive species that may useful to induce chemical reaction in the solution through the nonlinear mechanism such as multiphoton absorption [1]. When two or more metal ions are present in the solution, they readily react with the ions, radicals, molecules or excited states generated photolytically from the solvent to form zerovalent metal nanoalloys. We have reported elsewhere that the formation of gold-silver (AuAg) alloy nanoparticles in aqueous phase is possible by irradiating the mixed Au and Ag ions solution using a tightly focused femtosecond laser pulses [2]. The homogenous AuAg alloy nanoparticles as small as 2 nm were synthesized in all compositions, but its formation yield is very low and they are found to be gold-riched nanoalloys due to low concentration of ions used to avoid the formation of AgCl precipitation. By changing the solvent with an organic liquid, AgCl precipitates can be avoided and the resulted nanoparticles will be more dispersed, high yield and true alloys. Here, we demostrate the formation of AuAg alloy nanoparticles by femtosecond irradiation of metal ions co-existed in normal hexane.

Original languageEnglish
Title of host publication2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
DOIs
Publication statusPublished - 2011 Sep 6
Event2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 - Munich, Germany
Duration: 2011 May 222011 May 26

Publication series

Name2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011

Other

Other2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
CountryGermany
CityMunich
Period11/5/2211/5/26

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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