During the past decade there has been a phenomenal growth in the basic research of semiconductor nanoclusters and other nanomaterials. As the field has evolved the emphasis has shifted from basic theoretical description to field utilization of nanostructure-based devices. The topics of the various chapters presented in this book, written by leaders in the field, highlight the salient features of nanocrystalline semiconductor materials.<P>Features of this book:<P>- Provides synthetic strategies to generate ultrasmall particles, films and wires<P>- Describes the characterization methodologies of a large number of nanomaterials from the molecular level to the long-range crystallographic ordering<P>- Develops theoretical descriptions of present-day quantum confinement effects in various materials, including metallic particles, III-V semiconductors, and porous silicon<P>- Explores the fate of photoinduced charge carriers in these materials and the phenomena of charge transfer across interfaces<P>- Covers the utilization of these newly discovered effects in analytical chemistry, organic synthesis, environmental remediation, and electrochemistry.<P>The aim of the book is to present the necessary background material for advanced undergraduate students in the field of physical chemistry and materials science and provide a reference book for the experts in this area.