White-emitting Phosphor Research Articles

Synthesis and photoluminescence performance of single-component Ca3YAl3B4O15:Dy3+, Eu3+ white-emitting phosphor for white light-emitting diodes

A single-component Ca3YAl3B4O15 (CYAB):Dy3+, Eu3+ phosphor was synthesized by the traditional high temperature solid-phase method, Dy3+ and Eu3+ were codoped in the structure to obtain a warm white emission. The results of XRD and EDS revealed that all samples had the standard Ca3YAl3B4O15 structure, and no impurity phase appeared with codoping. The emission of Dy3+ in CYAB consisted of both main peaks at 476 nm and 570 nm, with which a white emission could be observed. Furthermore, a characteristic emission peak of Eu3+ appeared at 617 nm in Dy3+/Eu3+-codoped samples to supplement red component for the white emission of Dy3+, due to the energy transfer effect between Dy3+ and Eu3+. With the amount of Eu3+ raised, the correlated colour temperature of CYAB:Dy3+, Eu3+ phosphor obviously decreased, and a warm white light was successfully realized from the manufactured w-LEDs. Therefore, all results indicated that the single-component Dy3+/Eu3+ codoped CYAB white-emitting phosphor had a potential application in ultraviolet excited w-LEDs.

Color-tunable luminescence performance of single-component Na5Y(MoO4)4:Dy3+, Tm3+ white-emitting phosphor for white light-emitting diodes

The single-component Na5Y(MoO4)4:Dy3+, Tm3+ white-emitting phosphor was prepared by the sol-combustion method, and Tm3+ was codoped for color-tunable white emission. The XRD patterns confirm that the as-prepared samples have a Na5Y(MoO4)4 structure and do not change with Dy3+/Tm3+ codoping. Under ultraviolet excitation at 352 nm, the Na5Y(MoO4)4:Dy3+ phosphor shows a characteristic white emission consisting of a weak peak at 485 nm and a strong peak at 577 nm. By codoping a small amount of Tm3+, the blue emission of phosphor is enhanced, and the chromaticity coordinates can be adjusted between (0.3663, 0.416) and (0.319, 0.3407); thus, color-tunable white emission is achieved with the synergistic effect of Dy3+ and Tm3+. The luminescence intensity of Na5Y(MoO4)4:Dy3+, Tm3+ at 483 K still retains 72% of the initial intensity, showing excellent thermal stability. By combining Na5Y(MoO4)4:Dy3+, Tm3+ with a 365 nm chip, the fabricated w-LED device emits bright white light for illumination. Therefore, the as-prepared Na5Y(MoO4)4:Dy3+, Tm3+ has potential applications in the field of w-LEDs as white-emitting phosphors.

Luminescence enhancement of single-component Ca19Zn2(PO4)14:Dy3+ white-emitting phosphor powders through partial substitution of PO43− with SiO44− and BO33-

A series of Ca19Zn2(PO4)14-yAGy:Dy3+ (AG = BO33−, SiO44−) white-emitting phosphors with partial PO43− substitution were synthesized through high-temperature solid-state reaction. The BO33− and SiO44− anionic groups were introduced into Ca19Zn2(PO4)14:Dy3+ for enhancing the luminescence of Dy3+. The X-ray diffraction results exhibited that all samples were assigned to the standard trigonal Ca19Zn2(PO4)14 structure with R3c (161) space group. The white emission spectrum of Dy3+-doped phosphors was composed of several characteristic peaks located at 484 nm, 575 nm and 665 nm, corresponding to 4F9/2 → 6H15/2, 6H13/2 and 6H11/2 electron transitions, respectively. After partial SiO44− and BO33− substituting PO43−, the luminescence intensity of Ca18.62Zn2(PO4)13.75(SiO4)0.25:0.38Dy3+ and Ca18.62Zn2(PO4)13.65(BO3)0.35:0.38Dy3+ samples were higher by 1.68 and 1.49 times than that of Ca18.62Zn2(PO4)14:0.38Dy3+ sample, respectively, due to the charge compensation and crystal field environment effect. The actual w-LEDs fabricated with as-prepared Ca18.62Zn2(PO4)13.75(SiO4)0.25:0.38Dy3+ and Ca18.62Zn2(PO4)13.65(BO3)0.35:0.38Dy3+ phosphors showed excellent optical performances. All results indicated that the single component Ca18.62Zn2(PO4)14-yAGy:0.38Dy3+ white-emitting phosphors could have a potential application in w-LEDs.

(INVITED)Broadband emission of Lu2SrAl4SiO12:Eu2+ phosphor for full-spectrum lighting

Single-component broadband white-emitting phosphor is essential in next-generation white light-emitting diodes (WLEDs) devices for full-spectrum lighting applications. Herein, we report an ultra-broadband emitting Lu2SrAl4SiO12:Eu2+ phosphor with the full width at half maximum (FWHM) of ∼245–260 nm. Detailed analysis of the broadband emission mechanism reveals that it consists of two emission bands originating from Eu2+: one is the normal 4f65d1 →4f7(8S7/2) transition, and another is related with Eu2+-Eu3+ intervalence charge transfer (IVCT) emission with bandwidth of 210 nm. Moreover, the broad IVCT emission can be also suppressed by Be2+ doping, forming a narrow-band emission with FWHM = ∼75 nm. A warm WLED with a low correlated color temperature (CCT) of 3373 K and high CIR (Ra) of 85.7 is obtained by coating the broadband Lu2SrAl4SiO12:Eu2+ phosphor on an UV pumping LED, implying its application in full-spectrum warm white lighting.

Luminescence and energy transfer of single-phase white-emitting phosphor Ba2Mg(PO4)2:Ce3+, Eu2+ for white LEDs.

A series of Ba2Mg(PO4)2:Ce3+, Eu2+ phosphors were synthesized by the traditional high temperature solid-state method, and the crystal structures and luminescence properties of the samples were discussed systematically. The energy transfer from Ce3+ to Eu2+ in Ba2Mg(PO4)2 was proved to be of resonant type via a dipole-dipole interaction mechanism. With a precisely controlled relative proportion of Ce3+/Eu2+, the emission color of the samples can vary from blue (0.157, 0.071) to white (0.352, 0.332) and ultimately to yellow (0.452, 0.466) under the 323 nm ultraviolet light radiation excitation. The result reveals that the Ba2Mg(PO4)2:Ce3+, Eu2+ phosphor may have potential application as a single-phased white-emitting phosphor for light emitting diodes.

Highly thermostable white-emitting Ca9ZnK(PO4)7:Ce3+,Dy3+ single-phase phosphor with tunable photoluminescence and energy transfer.

White light-emitting diodes (WLEDs) fabricated with single-phase white phosphor are currently widely used in lighting and displays. Herein, we describe the development of a single-component white-emitting micro-sized powder Ca9ZnK(PO4)7 (CZKP):Ce3+,Dy3+ with high thermal stability. Theoretical and experimental investigations confirmed that the phosphate CZKP with a whitlockite-like structure was suitable as a phosphor host. The photoluminescence of cerium/dysprosium single- and co-doped samples was comprehensively studied. Dipole-dipole interaction resulted in the Ce3+ → Dy3+ energy transfer, which contributed to the spectral regulation for acquiring the white-emitting performance. Moreover, the superior thermal stability of the representative CZKP:0.10Ce3+,0.15Dy3+ phosphor was revealed. Finally, we explored the working performance of single-phase white phosphor-converted WLEDs. The corresponding work shows a successful design for achieving a single-component white phosphor via the Ce3+ → Dy3+ energy transfer approach.

Synthesis and luminescent properties of novel Li1.0Nb0.6Ti0.5O3: Dy3+ phosphors for white light-emitting diodes

Novel Li1.0Nb0.6Ti0.5O3: xDy3+ white-emitting phosphors were synthesized by two methods, the solid-state reaction method and the sol-gel method. The effects of the preparation method, processing temperature and rare earth ion concentration on the luminescence properties of the samples were studied systematically in this paper. The phosphors prepared by two methods have the same orthorhombic “M-phase” solid solution structures and the particle sizes are in the scope of 1.5–2.5 μm. Under an excitation of 390 nm, the photoluminescence peaks of all samples were concentrated at 484 nm and 582 nm, related to the 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 electron transitions of Dy3+ ions. With the doping concentration of Dy3+ increasing, the luminescence intensities of Li1.0Nb0.6Ti0.5O3: xDy3+ phosphors reach its relative maximum at x = 2 wt%. Moreover, the optimal calcination temperature of the samples prepared by the sol-gel method is about 850 °C, which is 200 °C lower than that of solid-state reaction method. The color coordinates of the phosphors prepared by two methods were confined to white light region, closed to the standard white coordinates. These results lay solid foundation for the promising application of Li1.0Nb0.6Ti0.5O3: Dy3+ as phosphors in white light-emitting diodes.

Effect of partial substituting Y3+ with Ln3+ (Ln = La, Gd) on photoluminescence enhancement in high-performance Na5Y(MoO4)4:Dy3+ white-emitting phosphors

White-emitting Na5Y1-yLny(MoO4)4:Dy3+ (Ln = La, Gd) phosphors were synthesized by a sol-combustion method. The effects of Ln3+ partial introduction on the structure and photoluminescence of Na5Y1-yLny(MoO4)4:Dy3+ (Ln = La, Gd) phosphors were studied. The X-ray diffraction and chemical composition results verified the successful introduction of Dy3+, La3+ and Gd3+ into the Na5Y(MoO4)4 lattice. Under the excitation of ultraviolet at 352 nm, the as-prepared phosphors showed a white emission with characteristic emission peaks at 577 nm (yellow) and 485 nm (blue), corresponding to the 4F9/2→6H13/2 and 4F9/2→6H15/2 transitions of Dy3+ ions, respectively. By substituting Y3+ ion with La3+ and Gd3+, the photoluminescence intensity of Na5Y(MoO4)4:Dy3+ sample was obviously enhanced due to the crystal field effect surrounding the luminescence center Dy3+. The chromaticity coordinates of all phosphors were located at the white light region, and the substitution of La3+ or Gd3+ could realize a higher color rendering index of white emission. Therefore, the as-prepared white-emitting Na5Y0.90La0.06(MoO4)4:0.04Dy3+ and Na5Y0.88Gd0.08(MoO4)4:0.04Dy3+ phosphors could be used as single-component phosphor for w-LEDs application.

Synthesis and Luminescence Properties of a Single-Phase White-Emitting and Tunable Color Phosphor Na3Sc2(PO4)3∶Tm3+,Dy3+

Synthesis and Luminescence Properties of a Single-Phase White-Emitting and Tunable Color Phosphor Na3Sc2(PO4)3∶Tm3+,Dy3+

Single-phase white-emitting phosphors Ba3Bi(PO4)3:Dy3+, Eu3+ with tunable correlated color temperature and high thermal stability towards light emitting applications

Single-phase white-emitting phosphors Ba3Bi(PO4)3:Dy3+, Eu3+ with tunable correlated color temperature and high thermal stability towards light emitting applications

Effect of Partial Ca2+ Substitution with Ln3+ (Ln = Y, La) on Luminescence Enhancement of Ca18.62Zn2(PO4)14:0.38Dy3+ White-Emitting Phosphor for White Light-Emitting Diodes

A sequence of white-emitting Ca18.62–xLnxZn2(PO4)14:0.38Dy3+ (Ln = Y, La) phosphors were synthesized by a high-temperature solid-phase method. The luminescence enhancement of Ca18.62–xLnxZn2(PO4)14:0.38Dy3+ phosphors via Ln3+ partial substitution was investigated. Since Ln3+ and Ca2+ ions have similar ionic radii, XRD results showed that Ln3+ could enter into the lattice without changing the host structure and the luminescence performance was further enhanced by affecting the lattice environment around the luminescence center. When the substitution amounts of Y3+ and La3+ were respectively x = 0.57 and 0.76 in the Ca18.62–xLnxZn2(PO4)14:0.38Dy3+ phosphor, the optimal luminescence performance could be acquired, and the luminescence intensity could be increased to 1.43 and 1.55 times the original intensity, respectively. Meanwhile, the cation substitution can greatly improve the thermal stability and enhance the activation energy of phosphor. Finally, the w-LEDs with neutral white light emitting were obtained by coating the as-prepared phosphor on an n-UV chip, and the color rendering index and correlated color temperature were measured as 85.8 and 5071 K, respectively. All the results indicated that the Ca18.62–xLnxZn2(PO4)14:0.38Dy3+ phosphor is an excellent candidate as a single-component white-emitting phosphor.

Li+ Ion Induced Full Visible Emission in Single Eu2+‐Doped White Emitting Phosphor: Eu2+ Site Preference Analysis, Luminescence Properties, and WLED Applications

AbstractA series of Eu2+ single doped Ca9Na1–xLixSc0.667(PO4)7 phosphors with full‐spectrum emission have been synthesized. Under the 385 nm excitation, the Eu2+ single doped Ca9NaSc0.667(PO4)7 without Li+ doping displays a broad cold white light emission with the peaks at about 480 and 610 nm. With the introduction of Li+ ions, the Eu2+ ions selectively occupy the Ca1, Ca2/Ca3, and Na sites. The variation of local environment of Eu2+ ions caused by Li+ ions enhances the luminous intensity, solves the problem of the lack of a red light component, and realizes the emission color tuning from cold white via warm white to orange. A special charge compensation method caused by Li+ migration avoids the generation of defects and is beneficial to the improvement of luminescence properties. Eventually, a warm white light‐emitting diode device is prepared by combining the white emitting Ca9Na0.8Li0.2Sc0.667(PO4)7:2%Eu2+ phosphors with 385 nm LED chip, which exhibits a high color‐rendering of 92.9, low correlated color temperatures of 4529 K, and excellent color stability under working temperature. The as‐reported warm white emitting Eu2+‐doped phosphors have potential applications in full‐spectrum solid‐state lighting. The site engineering strategy provides an extensive guide for optimizing and designing novel single‐composition white‐emitting phosphor materials.

Powder synthesis and white light-emitting properties of Eu3+ co-doped K2CaP2O7:Dy3+ phosphors with energy transfer between Dy3+ and Eu3+

A series of white-emitting K2CaP2O7:Dy3+ and K2CaP2O7:Dy3+, Eu3+ phosphors were synthesized via a solid-state method, and Eu3+ was co-doped in K2CaP2O7:Dy3+ to improve its white light performance. The influences of preparation temperature and Dy3+/Eu3+ concentration on the crystal structure and photoluminescence characteristics were investigated. XRD results indicate that K2CaP2O7:Dy3+ samples prepared above 700 °C matches the standard K2CaP2O7 phase. Under excitation of 349 nm, K2CaP2O7:Dy3+ phosphor exhibited characteristic emission peaks at 487 nm (blue) and 579 nm (yellow), and white emission was realized through combining these blue and yellow emissions. After co-doping Eu3+ ions, the co-luminescence of Dy3+/Eu3+ with energy transfer between Dy3+and Eu3+ were demonstrated. The chromaticity of white light was controlled by changing the ratio of Dy3+/Eu3+ concentrations, which lead to a warm white light. Therefore, the results indicate that K2CaP2O7:Dy3+, Eu3+ powders have a potential application in w-LEDs as single-component white-emitting phosphor.

Optical characteristics and energy transfer between Eu3+ and Dy3+ in Na2CaSiO4:Dy3+, Eu3+ white-emitting phosphor

A new type of white-emitting phosphor Na2CaSiO4:Dy3+, Eu3+ was synthesized through the sol-gel method, and the influences of doping concentration and synthesis temperature on photoluminescence properties and crystal phase were systematically studied. The X-ray diffraction results manifested that the structures of all Na2CaSiO4:Dy3+, Eu3+ phosphors prepared at the temperatures above 1100 ℃ and Na2CaSiO4 are of the same type. Under the excitation of 349 nm, the as-prepared Na2CaSiO4:Dy3+ phosphors showed a blue emission peak at 487 nm and a yellow emission peak at 579 nm attributed to the 4F9/2→6H15/2 and 4F9/2→6H13/2 transitions of Dy3+ ions. Meanwhile, a white light emission was reached by the combination of the obtained blue and yellow components. By co-doping Eu3+ ions, a characteristic emission peak appeared in red region (617 nm) and it was ascribed to the characteristic 5D0→7F2 transition of Eu3+. The warm white light emission (CCT = 2728 K) was realized with the 0.03Dy3+, 0.02Eu3+ co-doped Na2CaSiO4 phosphor. All results confirmed that the Na2CaSiO4:Dy3+, Eu3+ phosphor with excellent white emission has a potential application in the field of white light emitting diodes.

Single-phase white-emitting and tunable color phosphor Na3Sc2(PO4)3:Eu2+,Dy3+: Synthesis, luminescence and energy transfer

A series of Eu2+/Dy3+ single doped and co-doped Na3Sc2(PO4)3 phosphors were synthesized by the high-temperature solid-state method, and their phase, morphology, and luminescence properties were characterized. Under the excitation of 370 nm, the Na3Sc2(PO4)3:Eu2+,Dy3+ phosphor can emit white light whose spectrum is composed of a broad emission band centered at 460 nm and the other three peaks at 483, 577, and 672 nm, respectively. There is energy transfer from Eu2+ to Dy3+ ion in Na3Sc2(PO4)3:Eu2+,Dy3+ phosphor due to the good overlap between the emission spectrum of Na3Sc2(PO4)3:Eu2+ and the excitation spectrum of Na3Sc2(PO4)3:Dy3+, which is further confirmed by the fluorescence lifetime decrease of Eu2+ ion with the increase of Dy3+ concentration. The process of energy transfer is via dipole–quadruple interaction which is confirmed by applying Dexter's theory. By increasing the Dy3+ concentration, the color coordinates of the Na3Sc2(PO4)3:0.01Eu2+,xDy3+ phosphors can be adjusted from blue to white, and then to yellow. The optimized concentration of Dy3+ ions is 4.0 mol%, beyond which the concentration quenching will take place. The Na3Sc2(PO4)3:Eu2+,Dy3+ phosphor shows fairly good resistance to thermal quenching behavior, of which the emission intensity at 423 K can maintain 90.3% of the initial value (298 K). These results suggest that the Na3Sc2(PO4)3:0.01Eu2+,xDy3+ phosphors have potential applications as the color-tunable or a single-phase white emitting phosphor in white LEDs.

Ca19Zn2(PO4)14:Dy3+, M+ (M = Li, Na, K) white-emitting phosphors: Charge compensation effect of M+ on the photoluminescence enhancement

A series of β-Ca3(PO4)2 type single-component Ca19Zn2(PO4)14:Dy3+, M+ (M = Li, Na and K) white-emitting phosphors were synthesized via a high-temperature solid-state reaction method, where alkali metal ions (M+) co-doped as charge compensator into the Ca19Zn2(PO4)14:Dy3+ phosphor was aimed at improving the overall luminescence. The influences of synthesis temperature and the M+ introduction on both structure and luminescence property were thoroughly studied. X-ray diffraction patterns verify that the as-prepared phosphors attain the standard Ca19Zn2(PO4)14 phase without impurities. Photoluminescence peaks at 484 nm and 575 nm (originating from the 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 electron transitions of Dy3+ ions) were produced for all samples with an excitation of 386 nm, which then combined to emit white light. The luminescence intensities of Ca19Zn2(PO4)14:Dy3+ were dramatically improved through co-doping with M+ into the phosphor structure. These results demonstrate the promising application prospects of Ca19Zn2(PO4)14:Dy3+, M+ white-emitting phosphors in white light-emitting diodes.

Daylight-White-Emitting and Abnormal Thermal Antiquenching Phosphors Based on a Layered Host SrIn2(P2O7)2.

Single-phase white-emission phosphors possess a judicious usage potential in phosphor-converted white-light-emitting diodes (WLEDs). Recently, numerous efforts have been made toward the development of new patterns of white-emitting phosphors that achieve excellent quantum yield, superior thermal stability, and applaudable cost effectiveness of WLEDs. Finding suitable single-component white phosphor hosts to provide an ideal local environment for activators remains urgent. Inspired by the original discovery of the promising host MgIn2(P2O7)2 (MIP) and its structural dependence on alkali-metal cations, we synthesized a brand-new phosphor host, SrIn2(P2O7)2 (SIP), via the traditional solid-state reaction. Its crystal structure was determined using an ab initio analysis and the Rietveld method. It belongs to a monoclinic unit cell with the space group C2/c. Besides, SIP exhibits a special layered three-dimensional framework in which the monolayer [SrO10]∞ was surrounded by a bilayer [In2P4O14]∞ made of the InO6 octahedra and P2O7 groups. A series of pure SIP:Tm3+,Dy3+ phosphors with tunable blue-white-yellow emission were prepared by adjusting the dopant concentration and utilizing the Tm3+-Dy3+ energy transfer. The daylight-white-emitting phosphor SIP:0.01Tm3+,0.04Dy3+ (the correlated color temperature is 4448 K) exhibits an abnormal thermal antiquenching property, and the emission intensity of 423 K reaches 103.7% of the initial value at 300 K. On the basis of the temperature-dependent lattice evolution and microenvironment analysis, the reduction of β and lattice distortion can lead to lower asymmetry of the activators and benefit the compensation of trapped-electron thermal activation. In this work, an integration study was carried out on the crystal structure of the new matrix, the occupation of the luminescent center, the interaction of different activators in the host, and the distortion degree of the local structure for the activators, which is of great practical sense for producing a novel single-matrix white phosphor possessing superior thermal endurance for UV-light-stimulated WLEDs.

Photoluminescence enhancement in a Na5Y(MoO4)4:Dy3+ white-emitting phosphor by partial replacement of MoO42− with WO42− or VO43−

A series of Na5Y(MoO4)4-yAy:Dy3+ (A = WO42−, VO43−; y = 0–0.05) phosphors were synthesized by the combustion method. Some of the MoO42− sites were occupied by WO42− and VO43− anions, which enhanced the luminescence property of Dy3+-doped Na5Y(MoO4)4. XRD results show that the crystal structures of the samples were consistent with the standard Na5Y(MoO4)4 phase. Under excitation at 352 nm, the Na5Y(MoO4)4-yAy:Dy3+ phosphors exhibited a characteristic blue emission at 485 nm and a yellow emission at 577 nm, which originated from the 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 transitions of Dy3+ ions, respectively. White light can be achieved by combining these blue and yellow emissions. After replacing MoO42− with WO42− and VO43− anions in Na5Y(MoO4)4:Dy3+, the luminescence intensity of Dy3+ was significantly improved due to the crystal field effect. The results indicate that Na5Y(MoO4)3.97(WO4)0.03:Dy3+ and Na5Y(MoO4)3.97(VO4)0.03:Dy3+ phosphors have good prospects for application in n-UV-excited w-LEDs.

Photoluminescence and energy transfer of efficient and thermally stable white-emitting Ca9La(PO4)7:Ce3+, Tb3+, Mn2+ phosphors

The development of novel single-component white-emitting phosphors with high thermal stability is essential for improving the illumination quality of white light-emitting diodes. In this work, we synthesized a series of Ce3+, Tb3+, Mn2+ single- and multiple-doped Ca9La(PO4)7 (CLPO) phosphors with β-Ca3(PO4)2-type structure by the simple high-temperature solid-state reaction. The crystallization behavior, crystal structure, surface morphology, photoluminescence performance, decay lifetime and thermal stability were systematically investigated. The PL spectra and decay curves have evidenced the efficient energy transfer from Ce3+ to Tb3+ and from Ce3+ to Mn2+ in the CLPO host, and corresponding energy transfer efficiency reaches 41.8% and 54.1%, respectively. The energy transfer process of Ce3+→Tb3+ and Ce3+→Mn2+ can be deduced to the resonant type via dipole-dipole and dipole-quadrupole interaction mechanism, and corresponding critical distance were determined to be 12.23 and 14.4 Å, respectively. Based on the efficient energy transfer, the white light emission can be successfully achieved in the single-component CLPO:0.15Ce3+, 0.10Tb3+, 0.04Mn2+ phosphor, which owns CIE chromaticity coordinates of (0.3245, 0.3347), CCT of 5878 K, internal and external quantum efficiency of 84.51% and 69.32%. Especially, compared with the emission intensity at 25 °C, it still remains 98.5% at 150 °C and 92.0% at 300 °C. Based on these results, the single-component white light emission phosphor CLPO:0.15Ce3+, 0.10Tb3+, 0.04Mn2+ is a potential candidate for UV-converted white LEDs.

A new cadmium rare-earth oxyborate Cd4DyO(BO3)3 and luminescent properties of the Cd4Dy1-xSmxO(BO3)3 (0 ≤ x ≤ 0.8) phosphors

A new cadmium-rare earth (Dy) oxyborate Cd4DyO(BO3)3 has been prepared by a high-temperature solution reaction at 950 ​°C. The compound crystallizes in the space group Cm with a ​= ​7.9549(2) Å, b ​= ​15.7792(3) Å, c ​= ​3.4738(1) Å, β ​= 100.183(2)°, V ​= ​429.166(17) Å3, and Z ​= ​2. Its crystal structure consists of 1D [DyO4]n5n− chains of edge-sharing DyO6 octahedra and 1D [Cd2O6]n8n− double chains formed by corner- or edge-sharing CdO5 and CdO6 polyhedra. These chains are held together via common O atoms leading to a 3D [Cd4DyO10]n9n− network, with B atoms residing in channels of the network to balance charge, thus the final 3D network of Cd4DyO(BO3)3 is formed. IR and Raman studies support the presence of BO3 groups in the structure. Solid solutions of Cd4Dy1-xSmxO(BO3)3 (0 ​≤ ​x ​≤ ​0.8) were prepared via solid-state reaction method and their photoluminescence properties were studied. It was found that under near-UV excitation, the luminescence color of Cd4Dy1-xSmxO(BO3)3 fluorescent powders can be tuned from yellowish white through white to purplish white by rationally controlling the Sm3+/Dy3+ concentration ratio. The Cd4Dy0.8Sm0.2O(BO3)3 phosphor excited at 364 ​nm has CIE coordinates (0.338,0.328) and a CCT value of 5240 ​K, which indicates that it has the potential to be used as a single-component white-emitting phosphor for commercial W-LEDs. Moreover, XPS and UV–vis absorption spectra of Cd4DyO(BO3)3 have also been investigated.