Metal nanoparticles have important applications in catalysis,
medical diagnosis, recorded media and optics because of the
dependent characteristics of their sizes and shapes[1-4]. As the
shapes of their special properties and applications are
dependent on the particles, the various types of the preparation
of metal nanoparticles have attracted the attention of the
majority of researchers, and they have developed a series of
preparation methods for different nanostructures. Nano-Silver
is a typical metal nano-materials. Because of its unique
physical, chemical and optoelectronic properties, it has a wide
range of applications in many fields[5]. As a conductive
material, the flaky silver nanoparticles contact with each other
at the boundary[6, 7], which is superior to spherical particles. In
addition, silver nano-sheets have Surface Plasmon Resonance
Bands (SPRB) which are size and shape dependent. At the
same time, silver nano-sheets have great potentials to apply in
optical, biological markers, diagnosis, etc.[8]