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Optical properties of gold clusters precipitated on zirconia particles
Swiss Federal Inst of Technology, Switzerland.ORCID iD: 0000-0002-0074-3504
1998 (English)In: Materials Research Society Symposium - Proceedings, MRS, Warrendale, United States , 1998, 85-88 p.Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]

We have studied precipitation of noble metals with a view to extending these synthetic processes to other metals. In this paper we discuss the synthesis of gold clusters on the surface of oxide fine particles (in the range 60-100 nm). The influence of pH of the solution, the concentration of metal and the reducing agent are discussed. The size distribution of the precipitated gold clusters, determined by transmission electron microscopy, are around 2-10 nm. The interface between the gold clusters and oxide has been investigated by HRTEM. Optical measurements of the zirconia supported gold clusters shows a significant shift in the plasmon resonance. A model based on effective medium theory is proposed taking into account the high refractive index of zirconia.

Place, publisher, year, edition, pages
MRS, Warrendale, United States , 1998. 85-88 p.
Keyword [en]
Interfaces (materials), Mathematical models, Optical materials, Optical variables measurement, Particle size analysis, pH effects, Precipitation (chemical), Refractive index, Synthesis (chemical), Transmission electron microscopy, Zirconia, Gold clusters, Gold
National Category
Nano Technology
Identifiers
URN: urn:nbn:se:kth:diva-182969Scopus ID: 2-s2.0-0031700203OAI: oai:DiVA.org:kth-182969DiVA: diva2:914235
Conference
Warrendale, PA, United States, Proceedings of the 1997 MRS Fall Symposium, 30 November 1997 through 3 December 1997, Boston, MA, USA
Note

QC 20160331

Available from: 2016-03-23 Created: 2016-02-24 Last updated: 2016-03-31Bibliographically approved

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