Vijay B. Pawade is an Assistant Professor in the Department of Applied Physics at the Laxminarayan Innovation Technological University, Nagpur, India. His research focuses on rare earth-doped oxide materials and their applications in LEDs, solar cell devices, and photocatalytic processes. Sanjay J. Dhoble is a Professor in the Department of Physics at Rashtrasant Tukadoji Maharaj Nagpur University, India. During his research career he has worked on the synthesis and characterization of solid-state lighting materials and phosphors for solar cell efficiency enhancement, as well as the development of radiation dosimetry phosphors, and the biosynthesis of nanoparticles and their applications. Karthik N. Shinde is an Assistant Professor and the Director of R&D at N.S. Science and Arts College, Bhadrawati, India. His research interests are focused on the synthesis of nanocrystalline materials and exploring novel materials, and studying their PL and TL properties. 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.

• 1. Introductions to upconversion nanocrystals for sustainable technologies2. Shape and size control synthesis techniques for the preparation of upconversion nanocrystals3. Lanthanide-doped molybdate host materials for photonics devices4. Development of upconverting vanadate phosphors for fluorescent imaging technology5. Synthesis, upconversion properties and applications of Ln3+ -doped aluminates phospur6. NIR-Visible luminescence and applications of Er3+, Ho3+, and Tm3+/Yb3+ co-doped glasses7. Photocatalytic and sensing properties of rare-earth-doped tungsgate upconverting host materials8. Rare earth-doped oxide upconversion nanocrystals for photovoltaic applications9. Upconversion properties of lanthanide-doped core/shell nanostructures and their emerging application10. Synthesis and upconversion properties of rare-earth co-doped composite phosphurs11. Shape-size-controlled synthesis techniques and applications of fluoride upconverting nanocrystals

Vijay B. Pawade is an Assistant Professor in the Department of Applied Physics at the Laxminarayan Innovation Technological University, Nagpur, India. His research focuses on rare earth-doped oxide materials and their applications in LEDs, solar cell devices, and photocatalytic processes. Sanjay J. Dhoble is a Professor in the Department of Physics at Rashtrasant Tukadoji Maharaj Nagpur University, India. During his research career he has worked on the synthesis and characterization of solid-state lighting materials and phosphors for solar cell efficiency enhancement, as well as the development of radiation dosimetry phosphors, and the biosynthesis of nanoparticles and their applications. Karthik N. Shinde is an Assistant Professor and the Director of R&D at N.S. Science and Arts College, Bhadrawati, India. His research interests are focused on the synthesis of nanocrystalline materials and exploring novel materials, and studying their PL and TL properties. 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.

• 1. Introductions to upconversion nanocrystals for sustainable technologies2. Shape and size control synthesis techniques for the preparation of upconversion nanocrystals3. Lanthanide-doped molybdate host materials for photonics devices4. Development of upconverting vanadate phosphors for fluorescent imaging technology5. Synthesis, upconversion properties and applications of Ln3+ -doped aluminates phospur6. NIR-Visible luminescence and applications of Er3+, Ho3+, and Tm3+/Yb3+ co-doped glasses7. Photocatalytic and sensing properties of rare-earth-doped tungsgate upconverting host materials8. Rare earth-doped oxide upconversion nanocrystals for photovoltaic applications9. Upconversion properties of lanthanide-doped core/shell nanostructures and their emerging application10. Synthesis and upconversion properties of rare-earth co-doped composite phosphurs11. Shape-size-controlled synthesis techniques and applications of fluoride upconverting nanocrystals