This book presents recent developments in Synthesis, Characterization and Luminescence Property of rare-earth doped nanophosphors and Semiconductor Nanostructures. An insight in photoluminescence property of rare-earth doped nanophosphors and II-VI semiconductor nanostructures of different morphologies are discussed with variation of particle size, morphology, dopant concentration, synthesis method, reaction time, surfactant, chelating agent etc. employing cost effective "Bottom-up" synthesis techniques such as hydrothermal, co-precipitation method, sol-gel, micro-emulsion, solution...