@article{ART003348600},
author={Choi ByoungSu and Yu Mi Kim and Sungu Hwang and Jin-Kon Kim and Ryu, Jeong-ho and Cho, Hyun},
title={Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping},
journal={Journal of the Korean Crystal Growth and Crystal Technology},
issn={1225-1429},
year={2026},
volume={36},
number={2},
pages={78-83},
doi={10.6111/JKCGCT.2026.36.2.078}
TY - JOUR
AU - Choi ByoungSu
AU - Yu Mi Kim
AU - Sungu Hwang
AU - Jin-Kon Kim
AU - Ryu, Jeong-ho
AU - Cho, Hyun
TI - Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping
JO - Journal of the Korean Crystal Growth and Crystal Technology
PY - 2026
VL - 36
IS - 2
PB - The Korea Association Of Crystal Growth, Inc.
SP - 78
EP - 83
SN - 1225-1429
AB - Li+ co-doping was introduced into SrAl2O4:Mn4+ red phosphors to enhance their optical properties for phosphor-converted white light-emitting diodes (pc-WLEDs). The effects of Li+ ion incorporation on the crystal structure, absorption characteristics, and photoluminescence properties of the SrAl2O4:Mn4+ phosphors were investigated. The absorption and photoluminescence intensities gradually increased with increasing Li+ concentration and reached their maximum values at a Li+ concentration of 8 mol%. This enhancement can be attributed to the effective charge-compensation effect of Li⁺ ions, which suppresses defect formation induced by the substitution of Mn⁴⁺ ions in the SrAl₂O₄ lattice. However, further increase in the Li⁺ concentration resulted in a decrease in both absorption and photoluminescence intensities, suggesting the formation of excessive lattice distortion and defect complexes at high Li⁺ concentrations. These results demonstrate that appropriate Li⁺ co-doping is an effective strategy for improving the optical performance of the SrAl₂O₄:Mn⁴⁺ red phosphors for pc-WLED applications.
KW - SrAl2O4:Mn4+ phosphor;Li+ co-doping;luminescence characteristics;charge compensator;red-emitting LED phosphor
DO - 10.6111/JKCGCT.2026.36.2.078
ER -
Choi ByoungSu, Yu Mi Kim, Sungu Hwang, Jin-Kon Kim, Ryu, Jeong-ho and Cho, Hyun. (2026). Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping. Journal of the Korean Crystal Growth and Crystal Technology, 36(2), 78-83.
Choi ByoungSu, Yu Mi Kim, Sungu Hwang, Jin-Kon Kim, Ryu, Jeong-ho and Cho, Hyun. 2026, "Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping", Journal of the Korean Crystal Growth and Crystal Technology, vol.36, no.2 pp.78-83. Available from: doi:10.6111/JKCGCT.2026.36.2.078
Choi ByoungSu, Yu Mi Kim, Sungu Hwang, Jin-Kon Kim, Ryu, Jeong-ho, Cho, Hyun "Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping" Journal of the Korean Crystal Growth and Crystal Technology 36.2 pp.78-83 (2026) : 78.
Choi ByoungSu, Yu Mi Kim, Sungu Hwang, Jin-Kon Kim, Ryu, Jeong-ho, Cho, Hyun. Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping. 2026; 36(2), 78-83. Available from: doi:10.6111/JKCGCT.2026.36.2.078
Choi ByoungSu, Yu Mi Kim, Sungu Hwang, Jin-Kon Kim, Ryu, Jeong-ho and Cho, Hyun. "Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping" Journal of the Korean Crystal Growth and Crystal Technology 36, no.2 (2026) : 78-83.doi: 10.6111/JKCGCT.2026.36.2.078
Choi ByoungSu; Yu Mi Kim; Sungu Hwang; Jin-Kon Kim; Ryu, Jeong-ho; Cho, Hyun. Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping. Journal of the Korean Crystal Growth and Crystal Technology, 36(2), 78-83. doi: 10.6111/JKCGCT.2026.36.2.078
Choi ByoungSu; Yu Mi Kim; Sungu Hwang; Jin-Kon Kim; Ryu, Jeong-ho; Cho, Hyun. Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping. Journal of the Korean Crystal Growth and Crystal Technology. 2026; 36(2) 78-83. doi: 10.6111/JKCGCT.2026.36.2.078
Choi ByoungSu, Yu Mi Kim, Sungu Hwang, Jin-Kon Kim, Ryu, Jeong-ho, Cho, Hyun. Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping. 2026; 36(2), 78-83. Available from: doi:10.6111/JKCGCT.2026.36.2.078
Choi ByoungSu, Yu Mi Kim, Sungu Hwang, Jin-Kon Kim, Ryu, Jeong-ho and Cho, Hyun. "Enhanced Luminescence Characteristics of SrAl2O4:Mn4+ Red Phosphor by Li+ Co-doping" Journal of the Korean Crystal Growth and Crystal Technology 36, no.2 (2026) : 78-83.doi: 10.6111/JKCGCT.2026.36.2.078
