A novel redshift mechanism of Ce3+ emission in ZrO2-Ce: YAG composite phosphor ceramics
Source abstract
Abstract
Abstract In this work, ZrO2-Ce: YAG composite phosphor ceramic for the application of high brightness w-LEDs was fabricated for the first time. A novel redshift mechanism of Ce3+ emission is discovered in the composite ceramics that the oxygen vacancy introduced into YAG lattice by the high-temperature reduction of Zr4+ can cause a remarkable non-radiative transition of excited electrons and produce a large redshift from 540 nm to 570 ∼ 610 nm. This kind of redshift has provided a new approach to the supplement of the red component in Ce3+ emission spectra beyond the regular ways of larger rare-earth ions doping or M2+-N4+ double substitution.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Ga2O3 and related materials · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. White light-emitting diodes: history, progress, and future10.1002/lpor.201600147 ↗
2. Solid-state light sources getting smart10.1126/science.1108712 ↗
3. Structure-property correlations in Ce-doped garnet phosphors for use in solid state lighting10.1016/j.cplett.2007.05.023 ↗
4. Enhancement of red spectral emission intensity of Y3Al5O12 : Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs10.1016/j.jlumin.2006.08.093 ↗
5. Massive red-shifting of Ce3+ emission by Mg2+ and Si4+ doping of YAG:Ce transparent ceramic phosphors10.1039/C8TC03866J ↗
6. Ce3+-Doped garnet phosphors: composition modification, luminescence properties and applications10.1039/C6CS00551A ↗
7. Luminescent properties of cerium-activated garnet series phosphor: structure and temperature effects10.1149/1.2898093 ↗
8. Structural effects and 4f-5d transition shifts induced by La codoping in Ce-doped yttrium aluminum garnet: first-principles study
9. New Y2BaAl4SiO12:Ce3+ yellow microcrystal-glass powder phosphor with high thermal emission stability10.1039/C6TC03422E ↗
10. High temperature synthesis of yellow-emitting Y2BaAl4SiO12:Ce3+ phosphors for WLED applications10.1016/j.cplett.2018.08.003 ↗
11. Co-substitution in Ca1−xYxAl12−xMgxO19phosphors: local structure evolution, photoluminescence tuning and application for plant growth LEDs10.1039/C8TC00165K ↗
12. Color point tuning of Y3Al5O12 : Ce3+ phosphor via Mn2+–Si4+ incorporation for white light generation10.1039/c2jm32233a ↗
13. The analyses of structure and luminescence in (MgyY3-y) (Al5-ySiy)O12 and Y3(MgxAl5-2xSix)O12 ceramic phosphors10.1016/j.jallcom.2019.152236 ↗
14. Synthesis and luminescence properties of Mg-Si Co-doped Tb3Al5O12:Ce3+Phosphors with blue excitation for white LEDs10.1111/j.1551-2916.2012.05343.x ↗
15. A new-generation color converter for high-power white LED: transparent Ce3+:YAG phosphor-in-glass10.1002/lpor.201300140 ↗
16. Luminescence characteristics of YAG glass-ceramic phosphor for white LED10.1109/JSTQE.2008.920285 ↗
17. Facile one-step fabrication of 2-layered and 4-quadrant type phosphor-in-glass plates for white LEDs: an insight into angle dependent luminescence10.1364/OME.6.000804 ↗
18. Al2O3–YAG:Ce composite phosphor ceramic: a thermally robust and efficient color converter for solid state laser lighting10.1039/C6TC03215J ↗
19. A new CaF2-YAG:Ce composite phosphor ceramic for high-power and high-color-rendering WLEDs10.1039/C9TC02407G ↗
20. Composite phase ceramic phosphor of Al2O3-Ce:YAG for high efficiency light emitting10.1364/OE.23.017923 ↗
21. YAG:Ce(3+) transparent ceramic phosphors brighten the next-generation laser-driven lighting10.1002/adma.201907888 ↗
22. Stable, Heat-Conducting Phosphor Composites for High-Power Laser Lighting10.1021/acsami.8b00074 ↗
23. A search for extra-high brightness laser-driven color converters by investigating thermally-induced luminance saturation10.1039/C9TC03919H ↗
24. Unique design strategy for laser‐driven color converters enabling superhigh‐luminance and high‐directionality white light10.1002/lpor.201900147 ↗
25. Color Conversion Materials for High‐Brightness Laser‐Driven Solid‐State Lighting10.1002/lpor.201800173 ↗
26. White light emitting diodes with enhanced CCT uniformity and luminous flux using ZrO2 nanoparticles10.1039/C3NR06894C ↗
27. Improvement in uniformity of emission by ZrO2 nano-particles for white LEDs10.1088/0957-4484/23/26/265201 ↗
28. Roles of zirconia-doping in the sintering process of high quality Tb3Al5O12 magneto-optic ceramics10.1016/j.scriptamat.2019.09.011 ↗
29. Optical absorption and mechanism of vacuum-sintered ZrO2-doped Y2O3 ceramics10.1016/j.jeurceramsoc.2016.05.046 ↗
30. Phase-separation in 12 mol-percent ceria-doped zirconia induced by heat-treatment in H-2 and Ar10.1111/j.1151-2916.1992.tb05514.x ↗