The Application of Calcium Carbonate CaCO3 and Titania TiO2 for Color Homogeneity and Luminous Flux Enhancement in PC-LEDs. - Viet Tien Pham; Hung Ngoc Phan; Guo-Feng Luo; Hsiao-Yi Lee; Doan Quoc Anh Nguyen (J. Adv. Eng. Comput., 2021)