Optical properties of gold colloids formed in inverse micelles

Journal Article · Tue Jun 15 00:00:00 EDT 1993 · Journal of Chemical Physics; (United States)

DOI:https://doi.org/10.1063/1.464320· OSTI ID:6606975

Wilcoxon, J P; Williamson, R L; Baughman, R ^[1]

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1. Organizations 1153, 1843, and 1143 Sandia National Laboratories, Albuquerque, New Mexico 87108 (United States)

We discuss the formation of gold metal colloids in a variety of surfactant/solvent systems. Static and dynamic light scattering, small angle x-ray and neutron scattering, TEM analysis, and UV-visible absorbance are used to characterize the kinetics of formation and final colloid stability. These gold colloids exhibit a dramatic blueshift and broadening of the plasmon resonance with decreasing colloid size. Several types of reduction method are discussed and differences between micelle (water-free) or microemulsions as reaction media are compared. Use of inverse micelles allows smaller clusters to be formed with greater long-term stability.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6606975
• Journal Information: Journal of Chemical Physics; (United States), Journal Name: Journal of Chemical Physics; (United States) Vol. 98:12; ISSN 0021-9606; ISSN JCPSA6
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTRA
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
BORON COMPOUNDS
BORON HYDRIDES
CHEMICAL REACTIONS
COHERENT SCATTERING
COLLOIDS
COMPARATIVE EVALUATIONS
DECOMPOSITION
DIFFRACTION
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
ELEMENTS
EMULSIONS
EVALUATION
GOLD
HYDRAZINE
HYDRIDES
HYDROGEN COMPOUNDS
LASERS
LIGHT SCATTERING
METALS
MICROEMULSIONS
MICROSCOPY
MIXTURES
NEUTRON DIFFRACTION
NITROGEN COMPOUNDS
NUCLEATION
OPTICAL PROPERTIES
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PHYSICAL PROPERTIES
PLASMONS
PRECURSOR
PRODUCTION
PULSES
QUASI PARTICLES
RADIATIONS
REDUCTION
RESONANCE
SCATTERING
SIZE
SODIUM COMPOUNDS
SODIUM HYDRIDES
SOLUTIONS
SOLVENTS
SPECTRA
STABILITY
SURFACTANTS
TRANSITION ELEMENTS
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET RADIATION
VISIBLE RADIATION
X-RAY DIFFRACTION