Teboho P. Mokoena is a senior lecturer in the Department of Physics at the University of the Free State, Phuthaditjhaba, South Africa. His research focusses on luminescence in nanomaterials.Sefako J. Mofokeng is a post-doctoral researcher in the Department of Physics at the University of South Africa, Roodepoort, South Africa. His research interests lie in luminescence and nanomaterials synthesis and characterization.David E. Motaung is a professor in the Department of Physics at the University of the Free State, South Africa. His current research interests include the design, synthesis, and characterization of semiconductor metal oxides, metal-organic frameworks (MOFs), perovskite, and MXenes nanostructured materials, and their application in gas sensing devices for food quality and air quality monitoring.Hendrik C. Swart is a senior professor in the Department of Physics at the University of the Free State, South Africa. His research investigates the degradation of phosphors for field emission displays, as well as developing materials for nano solid-state lighting. He has been key in the development of processes to synthesize and deposit thin films of several types of semiconductor nanoparticles to enhance the color, luminescent intensity, and lifetime of such displays.

• PART 1: FUNDAMENTALS OF METAL OXIDES LUMINESCENT MATERIALS1. An overview of metal oxide luminescent materials: History and progress2. Luminescence mechanisms of metal oxides-based phosphors3. Long persistent metal oxides-based phosphors4. Synthesis approach based on derived metal oxides-based phosphors: Defects modulation and bandgap tailoring5. Material characterization of metal oxide-based phosphors: Powders and thin filmsPART 2: STRATEGIES OF ENHANCING LUMINESCENCE PERFORMANCE OF METAL OXIDES-BASED PHOSPHORS6. Electronic and crystal structures of garnet phosphor materials: Silicate, aluminate, gallate and germanate7. Luminescence characteristics of phosphate and borate-based metal oxide phosphors8. Luminescence properties of tungstate and vanadate-based metal oxide phosphors9. Luminescence dynamics of single and double perovskite-based metal oxide phosphors10. Dynamics of metal-organic frameworks (MOF)-oxide luminescent hybrid materials11. Luminescence characteristics of MXene-oxide phosphor composite materials12. Polymeric materials and functionalization of luminescent-based metal oxides13. Influence of magnetic properties on luminescence features of ferrites spinel-based metal oxides14. Doping metal oxide-based phosphors with non-rare earth elements: Noble and transition metalsPART 3: RECENT TRENDS FOR APPLICATIONS OF METAL OXIDES-BASED PHOSPHORS15. Metal oxide-based phosphors for solid-state lighting applications16. Metal oxide phosphors for thermoluminescence radiation dosimetry applications17. Metal oxide-based luminescent materials for bioimaging and biomedical applications: Phototherapy and antimicrobial18. Metal oxide-based phosphors for anti-counterfeiting applications19. Metal oxide-phosphors suitable for solar spectral converters for photovoltaics20. Metal oxide-based phosphors for chemiresistive sensors21. Metal oxide-based phosphors for optical thermometry applications