Full-spectrum solid-state white lighting with high color rendering index exceeding 96 based on a bright broadband green-emitting phosphor
Source abstract
Abstract
Developing blue-light-excited high-efficiency phosphor remains challenging for the fabrication of warm-white light-emitting diodes (LEDs) with an ultra-high color rending index (CRI). Here, the co-substitution of Ca2+-Hf4+ ion-pairs into a Y3Al5O12:Ce3+ phosphor, affords a novel, broadband, green-emitting CaY2HfAl4O12:2%Ce3+ garnet-type phosphor amenable to efficient blue light excitation. The structure, luminescent properties and blue-shift of this new material relative to a Y3Al5O12:2%Ce3+ phosphor have been extensively studied. Under 450 nm excitation, the optimum material exhibits high internal quantum efficiency (73.3%) and excellent thermal stability. Incorporation of the CaY2HfAl4O12:2%Ce3+ green phosphor into a prototype LED device delivers full-spectrum lighting with a high CRI (Ra = 97.2, R9 = 98.3) and low correlated color temperature (CCT = 3508 K). The resulting insight should aid the development of novel high-efficiency phosphors for full-spectrum warm-white LEDs with high-CRI value. ; No Full Text
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Perovskite Materials and Applications · Ammonia Synthesis and Nitrogen Reduction
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (86)
Show source-provided references
1. New Y2BaAl4SiO12:Ce3+ yellow microcrystal-glass powder phosphor with high thermal emission stability10.1039/C6TC03422E ↗
2. Eu2+-activated Sr8ZnSc(PO4)7: a novel near-ultraviolet converting yellow-emitting phosphor for white light-emitting diodes10.1021/am302014e ↗
3. A novel phosphor for glareless white light-emitting diodes10.1038/ncomms2138 ↗
4. Ca18.75Li10.5[Al39N55]:Eu2+—supertetrahedron phosphor for solid-state lighting10.1021/acs.chemmater.5b04929 ↗
5. Red phosphor converts white LEDs10.1038/nphoton.2014.221 ↗
6. Single-phased white-light-emitting Ca4(PO4)2O:Ce3+,Eu2+ phosphors based on energy transfer10.1039/C5DT01018G ↗
7. New red phosphors enable white LEDs to show both high luminous efficacy and color rendering index10.1016/j.scib.2019.06.003 ↗
8. Versatile Ca4F2Si2O7 host from defect-induced host emission to white-light-emitting Ce3+-doped Ca4F2Si2O7 phosphor for near-UV solid-state lighting10.1021/acs.jpcc.5b10375 ↗
9. Structural and luminescence properties of red-emitting Cs1−xMgPO4:xEu2+ phosphors for near-UV-pumped light emitting diodes10.1039/C4RA13615B ↗
10. Mn4+-activated Li3Mg2SbO6 as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes10.1039/C8RA10158B ↗
11. Highly efficient rare-earth-free deep red emitting phosphor La2Li1−ySb1−xO6:xMn4+,yMg2+: application in high-power warm w-LEDs10.1039/C8TC04351E ↗
12. Heavily Eu2O3-doped yttria-aluminoborate glasses for red photoconversion with a high quantum yield: luminescence quenching and statistics of cluster formation10.1039/C4TC01447B ↗
13. Optimization of white polychromatic semiconductor lamps10.1063/1.1432107 ↗
14. Temperature-dependent photoluminescence properties of (Ba,Sr)2SiO4:Eu2+ phosphors for white LEDs applications10.1016/j.jlumin.2014.02.027 ↗
15. Strong energy-transfer-induced enhancement of luminescence efficiency of Eu2+- and Mn2+-codoped gamma-AlON for near-UV-LED-pumped solid state lighting10.1021/acs.inorgchem.5b00683 ↗
16. Synthesis, crystal structures, and photoluminescence properties of Ce3+-doped Ca2LaZr2Ga3O12: new garnet green-emitting phosphors for white LEDs10.1021/jp508409r ↗
17. Ce3+ doped BaLu2Al4SiO12: a promising green-emitting phosphor for white LEDs10.1016/j.jlumin.2018.07.002 ↗
18. Effect of white light devoid of “cyan” spectrum radiation on nighttime melatonin suppression over a 1-h exposure duration10.1177/0748730419830013 ↗
19. Cyan phosphors for full-visible-spectrum lighting: shining new light on high-CRI white pc-LEDs10.1016/j.scib.2019.09.008 ↗
20. Ce3+ doped BaLu2Al2Ga2SiO12 — a novel blue-light excitable cyan-emitting phosphor with ultra-high quantum efficiency and excellent stability for full-spectrum white LEDs10.1016/j.jre.2020.09.015 ↗
21. Enhance color rendering index via full spectrum employing the important key of cyan phosphor10.1021/acsami.6b10233 ↗
22. Cyan-green phosphor (Lu2M)(Al4Si)O12:Ce3+ for high-quality LED lamp: tunable photoluminescence properties and enhanced thermal stability10.1021/acs.inorgchem.8b03017 ↗
23. Full-visible-spectrum lighting enabled by an excellent cyan-emitting garnet phosphor10.1039/D0TC00006J ↗
24. New Ce3+-activated thiosilicate phosphor for LED lighting—synthesis, luminescence studies, and applications10.1021/am500483j ↗
25. Synthesis and luminescence properties of novel Ce3+- and Eu2+-doped lanthanum bromothiosilicate La3Br(SiS4)2 phosphors for white LEDs10.1021/acsami.5b12125 ↗
26. Luminescence of an oxonitridoberyllate: a study of narrow-band cyan-emitting Sr[Be6ON4]:Eu2+10.1021/acs.chemmater.8b01256 ↗
27. Creating a green-emitting phosphor through selective rare-earth site preference in NaBaB9O15:Eu2+10.1021/acs.chemmater.1c00447 ↗
28. Near-unity cyan-green emitting lead-free all-inorganic cesium copper chloride phosphors for full-spectrum white light-emitting diodes10.1002/adpr.202000158 ↗
29. Red-shifted emission in Y3MgSiAl3O12:Ce3+ garnet phosphor for blue light-pumped white light-emitting diodes10.1021/acs.jpcc.8b03940 ↗
30. Luminescence of Ca3ZrSi2O9:Ce3+ blue phosphor with good thermal stability10.1016/j.jlumin.2018.11.049 ↗
31. Achieving full-visible-spectrum LED lighting via employing an efficient Ce3+-activated cyan phosphor
32. A highly efficient and thermally stable green phosphor (Lu2SrAl4SiO12:Ce3+) for full-spectrum white LEDs10.1039/C8TC04101F ↗
33. Weak thermal quenching of the luminescence in the Ca3Sc2Si3O12:Ce3+ garnet phosphor10.1039/C8TC02907E ↗
34. Using an excellent near-UV-excited cyan-emitting phosphor for enhancing the color rendering index of warm-white LEDs by filling the cyan gap
35. Ce3+-doped garnet phosphors: composition modification, luminescence properties and applications10.1039/C6CS00551A ↗
36. Temperature quenching of yellow Ce3+ luminescence in YAG:Ce10.1021/cm8030768 ↗
37. Crystal chemistry and luminescence of Ce3+-doped Lu2CaMg2(Si,Ge)3O12 and its use in LED based lighting10.1021/cm060898c ↗
38. Synthesis, structure, and photoluminescence properties of Ce3+ doped Ca2YZr2Al3O12: a novel garnet phosphor for white LEDs10.1021/acs.jpcc.5b01552 ↗
39. Synthesis, structure and luminescence properties of new blue-green-emitting garnet-type Ca3Zr2SiGa2O12:Ce3+ phosphor for near-UV pumped white-LEDs10.1039/C5RA22953G ↗
40. Structure and luminescence properties of Ce3+-activated BaLu2Al2Ga2SiO12 persistent phosphors for optical information storage10.1016/j.optmat.2021.111391 ↗
41. Designed synthesis, morphology evolution and enhanced photoluminescence of a highly efficient red dodec-fluoride phosphor, Li3Na3Ga2F12:Mn4+, for warm WLEDs10.1039/C7TC04878E ↗
42. Narrow red emission band fluoride phosphor KNaSiF6:Mn4+ for warm white light-emitting diodes10.1021/acsami.6b01905 ↗
43. A new phosphor for flying-spot cathode-ray tubes for color television: yellow-emitting Y3Al5O12–Ce3+10.1063/1.1755025 ↗
44. Ca5Ga6O14:Eu3+: a novel phosphor with outstanding heat resistance for white light-emitting diodes10.1111/jace.16352 ↗
45. Tunable emission, thermal stability and energy-transfer properties of SrAl2Si2O8:Ce3+/Tb3+ phosphors for w-LEDs10.1016/j.jallcom.2017.04.296 ↗
46. X-ray diffraction and the Bragg equation10.1021/ed074p129 ↗
47. A novel deep red-emitting phosphor KMgLaTeO6:Mn4+ with high thermal stability and quantum yield for w-LEDs: structure, site occupancy and photoluminescence properties10.1039/C7DT04811D ↗
48. Revised effective ionic radii and systematic studies of interatomie distances in halides and chaleogenides10.1107/S0567739476001551 ↗
49. Ba3Y2B6O15:Ce3+—a high symmetry, narrow-emitting blue phosphor for wide-gamut white lighting10.1021/acs.chemmater.8b00111 ↗
50. Correlation between the energy level structure of cerium-doped yttrium aluminum garnet and luminescent behavior at varying temperatures10.1088/2053-1591/3/5/055501 ↗
51. Dynamics of charges in superlong blacklight-emitting CaB2O4:Ce3+ persistent phosphor10.1021/acs.jpcc.9b02210 ↗
52. A general introduction to luminescent materials
53. Synthesis, structure, and peculiar green emission of NaBaBO3:Ce3+ phosphors10.1039/C4DT00859F ↗
54. Structure and redshift of Ce3+ emission in anisotropically expanded garnet phosphor MgY2Al4SiO12:Ce3+10.1039/C6RA00356G ↗
55. Filling the cyan gap toward full-visible-spectrum LED lighting with Ca2LaHf2Al3O12:Ce3+ broadband green phosphor10.1016/j.jallcom.2020.155469 ↗
56. Cation-size mismatch as a design principle for enhancing the efficiency of garnet phosphors10.1021/acs.chemmater.0c00095 ↗
57. Synthesis, structure, and photoluminescence properties of Ce3+-doped Ca2YZr2Al3O12: a novel garnet phosphor for white LEDs10.1021/acs.jpcc.5b01552 ↗
58. An empirical relation fitting the position in energy of the lower d-band edge for Eu2+ or Ce3+ in various compounds10.1016/0022-2313(84)90036-X ↗
59. A novel green-emitting SrCaSiAl2O7:Eu2+ phosphor for white LEDs10.1039/c3ra46690f ↗
60. Identification of dual luminescence centers from a single site in a novel blue-pumped Ca3Sc2Ge3O12:Ce3+ phosphor10.1039/C9DT01252D ↗
61. Structure, energy level analysis and luminescent properties of a novel broadband blue-emitting phosphor KBaYSi2O7:Ce3+10.1016/j.dyepig.2017.05.010 ↗
62. Color manipulation of intense multiluminescence from CaZnOS:Mn2+ by Mn2+ concentration effect10.1021/acs.chemmater.5b03570 ↗
63. Red-shift of emission wavelength caused by reabsorption mechanism of europium activated Ca-α-SiAlON ceramic phosphors10.1016/j.jlumin.2006.12.006 ↗
64. Luminescence properties of red-emitting M2Si5N8:Eu2+ (M = Ca, Sr, Ba) LED conversion phosphors10.1016/j.jallcom.2005.09.041 ↗
65. Synthesis, structure, and luminescence properties of Eu2+ and Ce3+ activated BaYSi4N710.1016/j.jallcom.2004.04.134 ↗
66. Insights into a novel garnet-based yellowish-green phosphor: structure, luminescence properties and application for warm white light-emitting diodes10.1039/C9CE01163C ↗
67. CaY2Si2S8:Ce3+: a novel green-emitting thiosilicate phosphor for white light-emitting diodes10.1039/C4TC01572J ↗
68. Structure evolution and photoluminescence of Lu3(Al,Mg)2(Al,Si)3O12:Ce3+ phosphors: new yellow-color converters for blue LED-driven solid state lighting10.1039/C6TC00966B ↗
69. Electronic structure and optical properties of the lanthanide activated RE3(Al1−xGax)5O12 (RE = Gd, Y, Lu) garnet compounds10.1016/j.jlumin.2012.08.028 ↗
70. Phosphors for solid-state white lighting10.1146/annurev-matsci-073012-125702 ↗
71. Relating the energy of the [Xe]5d1 configuration of Ce3+in inorganic compounds with anion polarizability and cation electronegativity10.1103/PhysRevB.65.235110 ↗
72. Relating the energy of the [Xe]5d1 configuration of Ce3+ in inorganic compounds with anion polarizability and cation electronegativity10.1103/PhysRevB.65.235110 ↗
73. Calculation of the energy of the 5d barycenter of La3F3[Si3O9]:Ce3+10.1016/S0022-2313(03)00116-9 ↗
74. Luminescence properties and its red shift of blue-emitting phosphor Na3YSi3O9:Ce3+ for UV LED10.1039/C7RA03813E ↗
75. Structure–property correlations in Ce-doped garnet phosphors for use in solid state lighting10.1016/j.cplett.2007.05.023 ↗
76. Unraveling the mechanisms of thermal quenching of luminescence in Ce3+-doped garnet phosphors10.1021/acs.chemmater.8b05300 ↗
77. Pressure-induced luminescence of cerium-doped gadolinium gallium garnet crystal
78. Structure–composition relationships and optical properties in cerium-substituted (Sr,Ba)3(Y,La)(BO3)3 borate phosphors10.1039/c3tc31621a ↗
79. A broadband cyan-emitting Ca2LuZr2(AlO4)3:Ce3+ garnet phosphor for near-ultraviolet-pumped warm-white light-emitting diodes with an improved color rendering index10.1039/C9TC04952E ↗
80. Highly efficient near-UV-excitable Ca2YHf2Al3O12:Ce3+,Tb3+ green-emitting garnet phosphors with potential application in high color rendering warm-white LEDs10.1039/D0TC00130A ↗
81. Recent advances in catalyst structure and composition engineering strategies for regulating CO2 electrochemical reduction10.1002/adma.202005484 ↗
82. Tunable luminescent properties and concentration-dependent, site-preferable distribution of Eu2+ ions in silicate glass for white LEDs applications10.1021/acsami.5b02550 ↗
83. HF-free hydrothermal route for synthesis of highly efficient narrow-band red emitting phosphor K2Si1–xF6:xMn4+ for warm white light-emitting diodes10.1021/acs.chemmater.5b04989 ↗
84. BaY1.95Al2Ga2SiO12:0.05Ce3+: a novel green-emitting phosphor with extra-high quantum yield, small thermal quenching and excellent water resistance for high-color-rendering white LEDs10.1016/j.jlumin.2020.117293 ↗
85. Luminescence properties and applications of Ce3+-activated Lu3Mg2GaSi2O12 yellow-green emission garnet phosphors10.1016/j.ceramint.2021.01.174 ↗
86. Phase transformation and luminescence properties of Y2.94Al5-xGaxO12:0.06Ce3+ phosphors10.1016/j.ceramint.2018.11.196 ↗