Upconversion Nanophosphors provides detailed information about various lanthanide-based upconversion nanoparticles and their application in different fields. It will also help solve fundamental and applied problems of inorganic phosphor materials showing upconversion behavior, as well as generate innovative ideas related to the application of inorganic phosphor materials. This book will prove to be an invaluable reference work for scientists, engineers, industrial experts, and masters and Ph D students working in the field of upconversion and materials science. — Covers the synthesis and characterization of upconversion nanophosphors and their applications- Highlights which classes of upconversion materials are suitable for a specific application- Explores processes to engineer upconversion nanoparticles for state-of-the-art technologies, including upconversion labelling and counterfeiting, highly sensitive and selective biosensing, and upconversion-activated drug delivery