Electronic and Optical Properties of Gold and Gold Composite Nanoparticles (Paperback)

Materials on a scale of 1 - 100 nm have demonstrated that the properties are dependent on their size and shape. [1-3] The non-existence of symmetry at the interface or electron confinement, which is not linear in size, contributes to the creation of new properties on a nanoscale. [1] Thus, the materials at the nanometer scale (1 - 100 nm) contain a cluster of atoms or molecules whose properties are neither of their constituents nor that of the bulk. Noble metal nanoparticles have bright colors due to the surface plasmon resonance absorption. [2] Examination of the absorption of surface plasmon resonance is part of a broad ongoing area of research to investigate properties on the nanometer scale. The color of metal nanoparticles is found to depend on the size and shape of the nanoparticles and the surrounding medium dielectric constant, leading to numerous studies of their synthesis and applications. [3, 4] The complexity of producing the desired size, shape, and monodispersity of nanoparticles continues to press for new and improved synthesis techniques. The development of the required chemical and physical interfaces for interacting with target molecules also involves the need for several different techniques for the synthesis of metal nanoparticles. The increase in the number of available nanoparticles and nanotechnology creates lots of applications and significant advancements in everyday life. Studies attempt to define the features of nanoparticles, contributing to the basic science in a way that provides possibilities for other applications to use nanoparticles.