Orange Phosphor Research Articles

A phosphor-in-glass film prepared with a novel orange Lu2GdMg2AlSi2O12:Ce3+ phosphor and a cyan BaSi2O2N2:Eu2+ phosphor

The preparation of phosphor-in-glass (PiG) films containing orange and cyan phosphors is one of the possible ways to improve the color rendering index (CRI) and correlated color temperature (CCT) of white LEDs packaged with PiG films. Recently, by matrix ion substitution, we have synthesized a novel orange Lu2GdMg2AlSi2O12:Ce3+ phosphor. Then, we used a “coating and low-temperature sintering” method to prepare PiG films containing this novel orange phosphor and the commercial cyan BaSi2O2N2:Eu2+ phosphor on sapphire substrates. Combining these PiG films with blue LED chips, warm white LEDs with CRI above 90 and CCT below 4000 K can be obtained. This suggests that the PiG films containing cyan and orange phosphors are promising to improve the CCT and CRI of white LEDs packaged with PiG films.

Crystal Field Engineering Inducing Transformation from Narrow Band of Eu3+ to Broadband of Eu2.

The complete transformation from narrow peak emission of Eu3+ to broadband emission of Eu2+ was first realized in La1-xSr2+xAl1-xSixO5:Eu series solutions relying on crystal field engineering and adjustment of synthesis parameters. The original red phosphor La0.97Sr2AlO5:0.03Eu3+peaks at 703 nm originated from 5D0 →7F4 transition of Eu3+ under 395 nm excitation. As the x value regularly increased, Sr2SiO4-type green phosphor La0.17Sr2.8Al0.2Si0.8O5:0.03Eu2+ was synthesized at x = 0.8, which can be efficiently excited by UV/blue light chips. Moreover, when x > 0.975, Sr3SiO5:Eu2+ type broadband orange phosphor Sr2.945Al0.025Si0.975O5:0.03Eu2+ with excellent thermal stability (91.3% peak intensity at 150 °C) was obtained. Variations in the crystal structure, phase, and luminescence properties were studied in detail. We hope this work can provide a reference that solid solution between distinct but structurally related systems is a strategy to explore the possible phosphors for phosphor-converted light-emitting diodes.

Structural and photoluminescence properties of SrNb2O6: RE3+ (RE = Sm, Tb) phosphors for solid state lighting

The phosphors for pc-LEDs have high thermal stability requirements due to the high operating temperature of LEDs. In addition, there are many phosphors based on SrNb2O6, but no one has studied Sm3+ or Tb3+ as the luminescent center of SrNb2O6 host. Therefore, two new phosphors based on SrNb2O6 host are proposed in this work. One is an orange phosphor with negative thermal quenching phenomenon using Sm3+ as the luminescent center, and the other is a green phosphor with Tb3+ as the luminescent center. In this work, a series of SrNb2O6:Sm3+ and SrNb2O6:Tb3+ phosphors were prepared by the solid-state reaction method. The structure, morphology, chemical composition, absorption properties and luminescence properties of Sm3+ and Tb3+ doped SrNb2O6 samples were studied. Under 405 nm excitation, the SrNb2O6:Sm3+ samples exhibit the 4f-4f transition of Sm3+ with the strongest emission intensity at 607 nm, the emission intensity of SrNb2O6:0.03Sm3+ phosphor at 150 °C remains at 100.56% of its room temperature value and the chromaticity coordinates are located in the orange region, with a color purity of 88.19%. Under 307 nm excitation, the SrNb2O6:Tb3+ samples exhibit the 4f-4f transition of Tb3+ with the strongest emission intensity at 544 nm, the emission intensity of SrNb2O6:0.09Tb3+ phosphor at 150 °C remains at 7.68% of its room temperature value and the chromaticity coordinates are located in the green region with a color purity of 74.29%. Additionally, Na+ is introduced as a charge compensator in the Sm3+ or Tb3+ doped phosphors, which enhances their luminescence intensity. These results indicate that the two phosphors synthesized in this work have the prospect of application in the field of solid-state lighting.

In-situ synthesis of samarium activated MgO–LaAlO3 nanocomposite for enhanced and prolonged phosphorescence

A series of MgO–La1-xAlO3:xSm (x = 0–5 mol.%) nanocomposite phosphors have been synthesized in-situ using Pechini sol-gel method. The rhombohedral and face-centered crystal structures of LaAlO3 and MgO, respectively, were corroborated utilizing X-Ray Diffractograms and their Rietveld refinement. The optical band gaps of these nanocomposites have been observed in the range of 5.20–5.63 eV. Upon excitation by n-UV 405 nm radiation, the emission characteristics of these phosphors spanning 450–750 nm have been thoroughly investigated. The most notable emission occurred at 599 nm in the orange region, confirmed by CIE-1931 chromaticity coordinates. The MgO–La1-xAlO3:xSm (x = 2 mol.%) is found to be the optimum concentration exhibiting maximum luminescence with a high color purity of 90 %. Insights from Riesfeld's theory pointed towards d-q multipolar interactions as the underlying mechanism behind concentration quenching observed beyond this optimum concentration. Bi-exponential decay behavior was observed via Time-Resolved Photoluminescence (TRPL) technique, with an Internal Quantum Efficiency of 63 % calculated utilizing Auzel's formalism. The study extensively explored the impact of MgO addition on the crystallite size, band-gap, luminescence, and life-time properties, attributing the enhanced and prolonged luminescence behavior to the MgO–La1-xAlO3:xSm (x = 2 mol.%) nanocomposite. Assessment of additional parameters such as CCT (Correlated Color Temperature) and energy transfer efficiencies further reinforced the suitability of these orange emissive phosphors for potential applications in photonics and forensics, underlining their promising prospects in various technological domains.

Tailored efficient and reliable double luminescent layer hybrid WOLEDs via doping engineering

Doping engineering has been widely utilized to increase the efficiency of White organic light-emitting diodes (WOLEDs). In this study, a blue phosphor material named DMAC-DPS and an orange phosphor material named PO-01 are integrated into the host materials Bis[2-(diphenylphosphino)phenyl] ether oxide (DPEPO) and carbazole-based 4,4′-biscarbazole-p-biphenyl (CBP) by incorporating the principle of complementary color luminescence, resulting in a doped double-luminescent layer hybrid WOLED. The developed device structure consists of ITO/MoO3/TCTA/DPEPO:DMAC-DPS/CBP:PO-01 (or CBP:PO-01/DPEPO:DMAC-DPS)/TAZ/Alq3/LiF/Al. The transfer of energy between the host and guest materials is achieved by controlling the thickness and position of the emitting layer, leading to a more balanced emission of blue and yellow light and an overall increase in device efficiency. The developed WOLED exhibits a maximum current efficiency of 26.8 cd A−1, a power efficiency of 16.8 lm W−1, and an external quantum efficiency of 10.95%. The stable color coordinates of the device remains consistent, varying from (0.34, 0.40) to (0.33, 0.39) at brightness levels ranging from 100 to 1000 cd m−2. Technically, the incorporation of blue and orange phosphor materials into the host materials DPEPO and CBP, respectively, resulting in a doped double-luminescent layer hybrid WOLED, has shown a more balanced emission of blue and yellow light and resulted in increased efficiency. The reliable color coordinates corroborate the good color stability, making it a promising candidate for various applications. Furthermore, the controlled transfer of energy between the host and guest materials has led to a more balanced emission of blue and yellow light. Our developed doping engineering methods have shown potential for increased efficiency and good color stability, making the developed WOLED a promising candidate for various applications.

Modification of the green CSS:Ce3+ phosphor by ion substitution for obtaining an orange phosphor for white LEDs

Modification of the green CSS:Ce3+ phosphor by ion substitution for obtaining an orange phosphor for white LEDs

Ab-initio DFT calculations and experimental investigations into optoelectronic and structural properties of Ca9Al(PO4)7:Sm3+ orange phosphor

Nanocrystalline phosphors of composition Ca9Al(PO4)7:xSm3+ (x = 0.01–0.16) were successfully synthesized using a urea-assisted highly efficient solution combustion technique. The structural, morphological, and photoluminescence features of the series of white powdered samples were studied using powder X-ray diffraction, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and photoluminescence characterization techniques. The structural framework and crystal phase purity of Ca9Al0.90Sm0.10(PO4)7 phosphor were investigated by Rietveld refinement analysis. The results showed that the replacement of Al3+ ions with Sm3+ ions in Ca9Al0.90Sm0.10(PO4)7 nanophosphor didn't alter the host lattice crystal structure and a trigonal lattice having R3c(161) space group was established. Meanwhile, the average particle size evaluated from the Scherrer equation was further confirmed by transmission electron microscopic studies revealing a size domain ranging from 35-60 nm. Structural optimization of the pure host via first-principle routing disclosed the density of states and electronic band structure having a band gap of 4.738 eV, which was found to be quite comparable to the experimentally observed value (4.37 eV) from the diffuse reflectance spectra. Many key optical properties, such as optical conductivity, extinction coefficient, loss function, and refractive index were determined by using a calculated dielectric function. Furthermore, photoluminescence studies inferred that 10 mol% of Sm3+ ion in Ca9Al(PO4)7 host matrix gave the best luminescence emission intensity. Detailed photoluminescent analysis of Ca9Al(PO4)7:xSm3+ phosphors demonstrated that on excitation at 401 nm, an intense reddish-orange emission was received at 600 nm (4G5/2 → 6H7/2 transition). The critical distance for energy migration came out to be 22 Å which strongly favors the mechanism behind luminescence quenching as dipole-quadrupole interactions resulting from the over-doping of activator ions. The chromaticity coordinates (0.5216, 0.3630) were obtained using MATLAB computations. These results favor the applicability of Sm3+ doped Ca9Al(PO4)7 phosphors as the reddish-orange emitter in near-ultraviolet excited white light-emitting diodes.

Self-assembly formation of CuI hybrid micron phosphors with tunable emission for multifunctional applications

Low-cost and eco-friendly CuI hybrid compounds with various structures have recently attracted increasing attention due to their excellent optical properties and promising phosphor applications. However, the poor solubility and solution processability of bulk powders with agglomerated particle limited their practical applications greatly. In this work, we reported the self-assembly formation of CuI hybrid micron phosphors via the aqueous PVP micelle-assisted assembly route. Seven CuI hybrid micron phosphors with the emission from blue 450 nm to red 636 nm have been successfully synthesized. Among them, CuI-pyridine hybrid micron phosphors can be obtained via the reaction of CuI with various pyridines. PVP limits the size growth of the phosphors efficiently and it also plays an important role in controlling the distinct crystal phase formation. Whereas, micron phosphors based on bidentate ligands including 2-propylpyrazine, 5-bromopyrimidine or 4,4′-bipyridine need to be prepared via ligand exchange reaction. The micron phosphors present excellent stability in water and can be dispersed in the aqueous solution of PVP or PVA to form homogenous luminescent composites. The luminescent composites based on PVP are easy to use for fabricating anti-counterfeiting patterns via brush-painting or screen-printing. On the other hand, PVA composites can be applied for preparing free standing monochromatic or multichromatic emitting films as color convertor for display backlight. The PVA composites also exhibit the promising phosphor application for light-emitting diode (LED). Especially, the white LED can be directly realized via optimizing the mixing ratio of blue and orange phosphors.

A bright orange luminescence with a single ultra-sharp emission peak in a cubic double perovskite

Ba 2+ ions in the cubic double perovskite structure of Ba 2 ZnWO 6 (BZWO) are coordinated with twelve O ions with high symmetry, and a novel orange phosphor Ba 2 ZnWO 6 :Eu 3+ (BZWO:Eu) has been obtained by substituting the partial Ba 2+ with Eu 3+ ions by one-step synthesis. The crystal structure and composition, morphology, optical properties, and temperature resistance of the orange phosphor BZWO:Eu have been studied, respectively. Only a single ultra-sharp emission peaking at 596 nm with full width at half maximum (FWHM) of 1 nm has been detected in the emission spectrum of BZWO:Eu, which is originated from the magnetic dipole transition 5 D 0 → 7 F 1 of Eu 3+ . The photoluminescence (PL) intensity of the phosphor BZWO:Eu has been improved by controlling the experimental condition reaching a PL quantum yield (PLQY) of 53.5%, which is much stronger than that of ZnWO 4 :Eu 3+ . The emission peak of BZWO:Eu keeps without any discernable change when the measurement temperature arises from 77 to 300 K, which indicates its superior temperature resistance. Only a single ultra-sharp emission peak located at 596 nm with full width at half maximum of 1 nm has been observed in the emission spectrum of Ba 2 ZnWO 6 :Eu 3+ , which is originated from the magnetic dipole transition 5 D 0 → 7 F 1 of Eu 3+ .

Application of green-emitting ZnS:Eu<sup>2+</sup> for boosting the spectrum of white light-emitting diode packages

Through utilizing a nonlinear application to acquire the best lumen efficiency (LE) for radiation (also known as LER) when color rendering index (CRI) value, especially CRI of R9 for strong red exceeds 90 with correlated color temperature (CCT) range of 2700-6500 K, the white light emitting diodes (WLED) package with adjustable CCT value and comprised of mixed-type light-emitting diodes (LEDs) can be acquired. The WLED model here contains blue and red LEDs with direct emission and a phosphorconversion blue LED or pc/B-LED (including orange and green phosphors mixed with blue LED colorant). The peak wavelengths of each LED constituent are 465 and 628 nm for LEDs in blue and red, 452 nm for the blue LED colorant, 530 and 586 nm for the phosphors exhibiting green and orange colors. Under the CCT of 2722-6464 K, the attained actual LED package, either with conversion phosphor, in red or in blue, possibly displays both CRI and R9 values measured from 90 to 96, color quality scale (CQS) values measured from 89 to 94, with LERs and LEs of 303-358 lm/W and 105-119 lm/W, respectively.

Tuneable blue to orange phosphor from Sm3+ doped ZnAl2O4 nanomaterials

Undoped and Sm3+ doped ZnAl2O4 nanopowders were synthesized using the co-precipitation method and annealed at 750 ℃ for 3.5 h. The aim of this study was to investigate the effect of varying the Sm3+ concentration on the ZnAl2O4 structure, morphology, and optical properties. The X-ray diffraction analysis confirmed that the samples have a face-centred cubic structure. Crystallite size decreased with an increase in Sm3+ concentration. Scanning electron microscopy revealed that the addition of Sm3+ slightly influence the morphology of the samples. Transmission electron microscopy confirmed a slight decrease in particle sizes. Energy-dispersive X-ray spectroscopy analysis confirmed the anticipated elemental composition. Ultraviolet–visible spectroscopy showed an increase in bandgap compared to the host. Photoluminescence analysis indicated that doping with Sm3+ induced defects within ZnAl2O4. The emission peaks observed around 380, 401, 451, 500, and 739 nm are attributed to host material. The emission peaks at 564, 601, and 649 nm correspond to the 5G5/2 → 6H5/2, 6H7/2, and 6H9/2 transition of Sm3+, respectively. The highest luminescence intensity was found for the 0.5 % Sm3+ sample. The CIE colour chromaticity diagram showed that the emission colour could be tuned from bluish to nearly white to orange.

Efficient Visible Light Charging for Rare Earth‐Free Persistent Phosphor

AbstractPersistent phosphor, as an eco‐friendly energy storage material, usually needs high‐energy photonic rays in the storage process, such as ultraviolet (UV) light, X‐ray, or even γ‐ray. This strict requirement for light source which is harmful to human health greatly limits the popularity of persistent phosphors in the daily life. Here, a novel broadband orange persistent emissive phosphor LiGaO2:1%Mn2+ (LGOM) is reported which supports efficient wide band excitation from UV to green light. The afterglow excited by 470 nm light even reaches ≈80% as intensity as UV excitation. The afterglow of LGOM excited by common blue lamp (450–460 nm) can be pictured by the smart phones for more than 48 h. The mechanism of visible light storage is discussed through the thermal‐luminescence measurements. In addition, interestingly, its persistent emissive color can shift from orange‐yellow to orange‐red after ceasing the excitation source. This unique broadband orange afterglow phosphor which supports efficient wide range visible‐light excitation, afterglow color shift, and long‐lasting luminescence is expected to have potential applications in the fields of emergency direction, anticounterfeiting, decoration design, etc.

Photoluminescence enhancement of orange-emitting Ca5(PO4)2SiO4:Sm3+ phosphor through charge compensation of A+ (Li+, Na+ and K+) ions for white light-emitting diodes.

The orange-emitting Ca5-x(PO4)2SiO4:xSm3+ (C5PSO:Sm3+) phosphor was prepared via a simple solid-state method, and the charge compensators A+ (A = Li, Na and K) were codoped into C5PSO:Sm3+ for improving the luminescence performance. The influences ofSm3+doping and Sm3+/A+ codoping on the crystal structure and the luminescence performance of the C5PSO:Sm3+ phosphor were investigated in detail. The X-ray diffraction results exhibited that all the as-prepared samples were assigned to the standard structure Ca5(PO4)2SiO4 possessing the P63/m space group. Upon near-ultraviolet excitation at 401 nm, the characteristic emission peaks of the C5PSO:Sm3+ phosphors are located at 558 nm, 605 nm and 656 nm, respectively, which are derived from the 4G5/2 → 6HJ (J = 5/2, 7/2, and 9/2) electron transitions of Sm3+ ions. Furthermore, a significant luminescence improvement of the C5PSO:Sm3+ phosphor was attained through charge compensation of codoped A+ ions, and the emission intensity is enhanced by 1.79-, 1.45-, and 1.14-fold for K+, Na+, and Li+, respectively. In addition, the actual orange-red LED and w-LED fabricated with the as-prepared C5PSO:Sm3+,K+ phosphor showed excellent optical performance. All the results demonstrated that the C5PSO:Sm3+,K+ orange-emitting phosphor could act as a potential orange-red component in the w-LEDs illumination field.

Platinum(ii) complexes of benzannulated N∧N−∧O-amido ligands: bright orange phosphors with long-lived excited states

Benzannulated N∧N−∧O-chelating ligands enable facile formation of remarkably bright orange-emitting Pt(ii) phosphors with very long-lived excited states.

Molten-salt synthesis and spectral characteristics of perovskite KCa2Nb3O10:Sm3+ phosphors

In this study, novel layered niobate KCa2Nb3O10:Sm3+ orange red phosphors have been successfully prepared by adopting the molten-salt method. The phase purity, surface morphology, photoluminescence properties, thermal stability, and fluorescence lifetime are systematically demonstrated. The X-ray diffraction (XRD) analysis revealed that these powders were pure phase and crystallized in an orthorhombic with a space group of Cmcm (No.63). Under 407 nm excitation, the KCa2Nb3O10:Sm3+ phosphors have the strongest emission peak at 603 nm which can be put down to the 6H5/2 → 4F7/2 transition of Sm3+. The optimum concentration of KCa2Nb3O10:xSm3+ is 5 mol%. The KCa2Nb3O10:Sm3+ phosphors display excellent thermostability because of their high T0.5 (over 480 K). Meanwhile, these samples show a high color purity from 96.6 to 98.2%. The white light-emitting diodes (w-LEDs) have been prepared with flying colors. All the results indicated that the potential application of the new kind of KCa2Nb3O10:Sm3+ luminescent powder in w-LEDs.

Photoluminescence and afterglow behavior of a new orange long-lasting borate phosphor Eu2+, Dy3+: NaSr4(BO3)3

A new long-lasting phosphor Eu2+, Dy3+: NaSr4(BO3)3 was obtained by high temperature solid state process. The phosphor displays typical 5 dd-4f transition of Eu2+ upon UV illumination with a broad emission centering around 588 nm, which is orange visible to the naked eye. Such an emission can be divided into 2 single emissions since the Eu2+ cations are located in two different crystallographic sites in the forms of [EuO6] and [EuO8]. An optimal doping concentration for Eu2+ cation is determined as 2 at% due to the quenching effect with increasing Eu2+ concentration. The critical distance between the luminescence center is determined around 14 Å. Afterglow behaviors are further observed for the prepared phosphors, which can be expressed by an empirical double exponential decay model. The sample 2% Eu/Dy: NaSr4(BO3)3 displays the best afterglow performance. The reason for such an afterglow performance is revealed by thermal stimulated luminescence (TSL) that the co-doped Dy cations offer large numbers of electron traps with suitable trap depth.

Yellow phosphors of high quantum yields excitable by both ultraviolet and blue light with Gd3BWO9 as the host

Yellow phosphors play an important role in the fabrication of white light LEDs. In this study, we synthesized a series of yellow phosphors with Gd3BWO9 (GBWO) as the host material. The broad emission band in the range of 400 ​nm–620 ​nm is attributed to the 3P0→1S0 transition of Bi3+. The emission color is tuned from green to yellow by co-doping of Eu3+ or Sm3+ with Bi3+ in GBWO. Additionally, yellow phosphors excited by blue light (λex ​= ​487 ​nm) were obtained by co-doping Tb3+ with Eu3+ or Sm3+ in GBWO host. The emission can be tuned from green to yellow and orange by adjusting the ratio of Tb3+/Eu3+ and Tb3+/Sm3+. The quantum yield of GBWO:0.25 ​Tb3+, 0.03Eu3+ yellow phosphor reaches 70.2%, and the quantum yield of GBWO:0.25 ​Tb3+, 0.05Eu3+ orange phosphor is as high as 83.7%. The present yellow phosphors that can be excited by both ultraviolet and blue light and having high quantum yields can be candidates for the application in white LED.

Luminescence mechanism of Sm doped MgAl2O4 nanophosphors: Role of nanoparticle size, samarium content and structural defects

We report structural and luminescence properties of the spinel MgAl2O4:Sm3+ nanophosphors (with Sm3+ content of 0.03, 0.1, 0.2, 0.3, 0.5, 1.0, 1.5, and 3.0 wt%.) synthesized by a co-precipitation method. The X-ray phase analysis and transmission electron microscopy show that the size of the MgAl2O4:Sm3+ nanoparticles varies from 5 nm to 6 nm at a synthesis temperature of 700 °C and from 7 nm to 15 nm at 1000 °C. We demonstrate that the samples synthesized at 700 °C with a samarium content of 1.5 wt% are the most promising candidates for use as orange phosphors. We show that near-surface rare-earth ion segregation arises in the nanoparticles with an average size of 10 nm and the Sm concentrations of 1.0 wt% and 1.5 wt%. Simulation of the MgAl2O4:Sm3+ luminescence spectrum by the modified crystal field theory (MCFT) indicates that Sm ions occupy both octahedral and tetrahedral positions. Complexes with broken bonds, non-equivalent bonds, and complexes with vacancies are revealed and confirmed by EPR studies and theoretical calculations. We demonstrate that the most intense transitions arise in tetrahedral and octahedral complexes with vacancies. The enhancement of the emission efficiency caused by the distortions of the Sm3+ coordination complexes competes with the luminescence quenching caused by surface segregation.

Efficient Perovskite White Light-Emitting Diode Based on an Interfacial Charge-Confinement Structure.

Perovskite light-emitting diodes (LEDs) show great potential for next-generation lighting and display technology. Despite intensive studies on single-color devices, there are few reports on perovskite-based white LEDs (Pe-WLEDs). Here, an efficient Pe-WLED based on a blue perovskite and an orange phosphorescent emitter is reported for the first time. It is found that using a simple perovskite/phosphor bilayer emitting structure, there is inefficient energy transfer from the blue perovskite to the orange phosphor, leading to low efficiency and a significant color shift with driving voltage. We address this issue by introducing a quantum-well-like charge-confinement structure for enhancing carrier trapping and thus exciton formation in the phosphorescent emitter. As a result, a high external quantum efficiency of 10.81% is obtained. More interestingly, by tuning the dopant concentration of the phosphorescent emitter using this simple device structure, we can controllably get Pe-WLEDs with very stable white light for display applications or tunable color from warm white to daylight for lighting applications.

Investigation of brightness and decay characteristics of YAG:Ce3+, Ca-α-Sialon:Eu2+ and CaAl12O19:Mn4+ phosphors incorporated with Ni-doped SnO2 particles

In this study, we investigated the enhancement in the optical and decay properties of three phosphors, Ce3+-doped yttrium aluminium garnet (YAG:Ce3+), Eu2+-doped yellow oxynitride phosphor (Ca-α-SiAlON:Eu2+), Mn4+-doped aluminate-based phosphor (CaAl12O19:Mn4+), as a result of the interactions of the light-harvesting Ni-doped SnO2 additive. When the YAG:Ce3+ encapsulated in the presence of the nanoscale metal oxide in ethyl cellulose (EC) thin film, exhibited a 59% increase in its brightness as against its non-additive form. Similarly, when excited by 466 nm, the individual blends of Ca-α-SiAlON:Eu2+ and CaAl12O19:Mn4+ phosphors with Ni-doped SnO2 particles demonstrated 65% and 93% improvement in the intensity values, respectively. Decay characteristics of the phosphors and their Ni-doped SnO2 blends were measured in microsecond and nanosecond time scales. When they are in close proximity in a polymeric matrix, the emission- and lifetime-based results have approved that Ni-doped SnO2 particles and phosphors act as donor and acceptor, respectively. Furthermore, the thermal stabilities, quantum efficiencies and CIE chromaticity coordinates of all phosphors and their blends with Ni-doped SnO2 additive were investigated. In parallel with the increase in emission-based intensities and decay time kinetics, we enhanced the internal quantum efficiencies to 94.1%, 86.2% and 80.4%, with the blending of Ni-doped SnO2 particles to YAG:Ce3+, Ca-α-SiAlON:Eu2+, and CaAl12O19:Mn4+ phosphors, respectively. Notably, all of the phosphor composites along with additive indicated higher thermal stability in the temperature range of 303–503 K with respect to the additive-free forms. In the light of these results, the proposed composites can bring a new approach for the existing problems of yellow, orange, and red phosphors concerning the brightness and color rendering index and can be considered as potential candidates on LED technologies.