TY  - JOUR
AU  - Zhou, Jianbang
AU  - Liu, Feilong
AU  - Li, Junhao
AU  - Milićević, Bojana R.
AU  - Yan, Jing
AU  - Wu, Zhanchao
AU  - Wu, Mingmei
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9798
AB  - Mn4+-activated fluorides rank among the most significant red phosphors for white light emitting diodes (LEDs) with enhanced color rendition, while their poor moisture resistance hinders further application. Surface coating with a protective layer is general approach to improving moisture resistance. However, these methods usually suffer from complex post-processing and poor shell stability. Herein, the introduction of passivation ions (Nb5+) may suppress the hydrolysis of [MnF6]2–, which provides a facile approach to obtaining moisture-resistant fluoride phosphors. Compared to K2TiF6:5.0%Mn4+, the moisture resistance and luminescence intensity of K2Ti0.949Nb0.051F6.051:5.0%Mn4+ improved significantly following the addition of Nb5+. In addition, the combination of as-prepared K2Ti0.949Nb0.051F6.051:5.0%Mn4+ red phosphor, YAG:Ce yellow phosphor and blue-chip enables the production of warm white LEDs with excellent color rendition (Ra = 90.2), low correlated color temperature (CCT = 3816 K), and high luminous efficacy (132.2 lm/W). © 2021
T2  - Optical Materials
T1  - A facile self-passivation strategy for improving moisture-resistance of fluoride red phosphors without surface modification
VL  - 117
DO  - 10.1016/j.optmat.2021.111184
ER  - 

@article{
author = "Zhou, Jianbang and Liu, Feilong and Li, Junhao and Milićević, Bojana R. and Yan, Jing and Wu, Zhanchao and Wu, Mingmei",
year = "2021",
abstract = "Mn4+-activated fluorides rank among the most significant red phosphors for white light emitting diodes (LEDs) with enhanced color rendition, while their poor moisture resistance hinders further application. Surface coating with a protective layer is general approach to improving moisture resistance. However, these methods usually suffer from complex post-processing and poor shell stability. Herein, the introduction of passivation ions (Nb5+) may suppress the hydrolysis of [MnF6]2–, which provides a facile approach to obtaining moisture-resistant fluoride phosphors. Compared to K2TiF6:5.0%Mn4+, the moisture resistance and luminescence intensity of K2Ti0.949Nb0.051F6.051:5.0%Mn4+ improved significantly following the addition of Nb5+. In addition, the combination of as-prepared K2Ti0.949Nb0.051F6.051:5.0%Mn4+ red phosphor, YAG:Ce yellow phosphor and blue-chip enables the production of warm white LEDs with excellent color rendition (Ra = 90.2), low correlated color temperature (CCT = 3816 K), and high luminous efficacy (132.2 lm/W). © 2021",
journal = "Optical Materials",
title = "A facile self-passivation strategy for improving moisture-resistance of fluoride red phosphors without surface modification",
volume = "117",
doi = "10.1016/j.optmat.2021.111184"
}

Zhou, J., Liu, F., Li, J., Milićević, B. R., Yan, J., Wu, Z.,& Wu, M.. (2021). A facile self-passivation strategy for improving moisture-resistance of fluoride red phosphors without surface modification. in Optical Materials, 117.
https://doi.org/10.1016/j.optmat.2021.111184

Zhou J, Liu F, Li J, Milićević BR, Yan J, Wu Z, Wu M. A facile self-passivation strategy for improving moisture-resistance of fluoride red phosphors without surface modification. in Optical Materials. 2021;117.
doi:10.1016/j.optmat.2021.111184 .

Zhou, Jianbang, Liu, Feilong, Li, Junhao, Milićević, Bojana R., Yan, Jing, Wu, Zhanchao, Wu, Mingmei, "A facile self-passivation strategy for improving moisture-resistance of fluoride red phosphors without surface modification" in Optical Materials, 117 (2021),
https://doi.org/10.1016/j.optmat.2021.111184 . .