Effect of the Green-emitting CaF2:Ce3+,Tb3+ Phosphor Particles' Size on Color Rendering Index and Color Quality Scale of the In-cup Packaging Multichip White LEDs Authors N. H. K. Nhan, T. H. Q. Minh, T. N. Nguyen, M. Voznak, V. V. Huynh Publisher Digest Journal of Nanomaterials and Biostructures Publication year 2018