Impact of green-emitting CaSc2O4:Ce3+ phosphor on the illuminance and color uniformity of white-light-emitting diodes

Le Thi Thuy My, My Hanh Nguyen Thi, Nguyen Le Thai


blue light stimulation, a novel green phosphor, Ce3+-activated CaSc2O4, was created, which emits green illumination with a maximum wavelength of 515 nm. Since the brightness performance of Ce3+-activated CaSc2O4 is equivalent to that of commercial phosphors such as Y3Al5O12: Ce3+, it may be utilized as a substance for chroma transformation in white-light-emitting diodes (WLEDs) that comprise one blue LED, one green phosphor, as well as one red phosphor. The Ce ion is most likely at an eight-coordinated Ca position in the base crystal for said phosphor, which posesses orthorhombic CaFe2O4 configuration. The effect of burning temperature and dopant concentration on luminous strength was examined, and it was discovered that the optimal temperature and concentration reached 1,600 °C and 1 mol % Ce replaced in the Ca site, respectively. By substituting Mg for Ca, the luminous maximum wavelength moved towards greater values. Substituting Ca using Sr, on the other hand, and yielded changes towards lesser wavelengths.


CaSc2O4:Ce3+; Color homogeneity; Luminous flux; Monte Carlo theory; WLEDs;

Full Text:




  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

The Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)
p-ISSN: 2502-4752, e-ISSN: 2502-4760
This journal is published by the Institute of Advanced Engineering and Science (IAES) in collaboration with Intelektual Pustaka Media Utama (IPMU).

shopify stats IJEECS visitor statistics