OPTICAL-PROPERTIES OF GOLD COLLOIDS FORMED IN INVERSE MICELLES

被引：218
作者：
WILCOXON, JP
WILLIAMSON, RL
BAUGHMAN, R
机构：
[1] SANDIA NAT LABS, ORG 1843, ALBUQUERQUE, NM 87108 USA
[2] SANDIA NATL UNIV, ORG 1143, ALBUQUERQUE, NM 87108 USA
来源：
JOURNAL OF CHEMICAL PHYSICS | 1993年 / 98卷 / 12期
关键词：
D O I：
10.1063/1.464320
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
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页码：9933 / 9950
页数：18
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