Luminescence enhancement of SrZn2(PO4)2:Eu2+,Mn2+ phosphor co-doped with Al3+

Yang, Su–Hua; Lin, Chun-Yeon; Tung, Wei-Min; Hung, Tu-Chieh

doi:10.1016/j.jallcom.2016.11.198

Cited by 14 publications

(4 citation statements)

References 39 publications

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“…The binding energies of Sr 3d and Ca 2p in SrCaP and SrCaP-Zn1 coatings closely correspond with that of Sr-Apatite and Sr-HA. , The trace amount of Zn in SrCaP-Zn1 coating does not cause a notable shift in the binding energy of Sr 3d and Ca 2p. Besides, the binding energies of Sr 3d and Zn 2p in SrCaP-Zn4 coating are consistent with that of SrZn 2 (PO 4 ) 2 reported in the literature . The binding energies of Sr 3d and Ca 2p in SrCaP-Zn4 coating are slightly higher than that of the other two coatings, which is attributed to the phase transition .…”

Section: Resultssupporting

confidence: 89%

“…Besides, the binding energies of Sr 3d and Zn 2p in SrCaP-Zn4 coating are consistent with that of SrZn 2 (PO 4 ) 2 reported in the literature. 48 The binding energies of Sr 3d and Ca 2p in SrCaP-Zn4 coating are slightly higher than that of the other two coatings, which is attributed to the phase transition. 41 As confirmed by the XRD results, the phase of the SrCaP-Zn4 ).…”

Section: Methodsmentioning

confidence: 85%

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Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Zuo

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Implant-associated infections (IAI) remains a common and devastating complication in orthopedic surgery. To reduce the incidence of IAI, implants with intrinsic antibacterial activity have been proposed. The surface functionalization and structure optimization of metallic implants can be achieved by surface modification using the phosphate chemical conversion (PCC) technique. Zinc (Zn) has strong antibacterial behavior toward a broad-spectrum of bacteria. Herein, Zn was incorporated into strontium−calcium-phosphate (SrCaP) coatings on titanium (Ti) via PCC method, and the influence of its doping amount on the phase, microstructure, antibacterial activity, and biocompatibility of the composite coating was researched. The results indicated that traces of Zn doping produced grain refinement of SrCaP coating with no significant effect on its phase and surface properties, while a higher Zn content induced its phase and microstructure transformed into zinc−strontium-phosphate (SrZn 2 (PO 4 ) 2 ). SrCaP-Zn1 and SrCaP-Zn4 represented trace and high content Zn-doped coatings, respectively, which exhibited a similar bacterial attachment for a short time but showed inhibition of biofilm formation after continuous incubation up to 24 h. The killing rates of SrCaP-Zn1 coating for Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) reached 61.25% and 55.38%, respectively. While that data increased to 83.01% and 71.28% on SrCaP-Zn4 coating due to the more-releasing Zn 2+ . Furthermore, in vitro culture of MC3T3-E1 cells proved that the Zn-doped coatings also possessed excellent biocompatibility. This study provides a new perception for the phase and microstructural optimization of phosphate coatings on implant surfaces, as well as fabricating promising coatings with excellent biocompatibility and antimicrobial properties against IAI.

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Section: Resultssupporting

confidence: 89%

Section: Methodsmentioning

confidence: 85%

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Zuo

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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“…The extremely small difference in the average bond length means that Mn 2+ would form similar or even identical emissions at the Ca4/ScO 6 sites. 41,42 So, the peaks at 633 and 670 nm are from the Mn 2+ occupying the CaO 8 site and the Ca4O 6 site, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, according to the data collection from XRD Rietveld refinement, the difference in the average bond length between ScO 6 sites (2.19685 Å) and Ca4O 6 sites (2.19611 Å) is very small (Table S4). The extremely small difference in the average bond length means that Mn 2+ would form similar or even identical emissions at the Ca4/ScO 6 sites. , So, the peaks at 633 and 670 nm are from the Mn 2+ occupying the CaO 8 site and the Ca4O 6 site, respectively.…”

Section: Resultsmentioning

confidence: 99%

Thermally Stable Red-Emitting Ca₁₈K₃Sc(PO₄)₁₄:Mn²⁺ Phosphor and Enhanced Luminescence by Energy Transfer Between Ce³⁺-Eu²⁺-Mn²⁺

Deng,

Shang,

Sun

et al. 2024

Inorg. Chem.

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It is significant and valuable to investigate novel and high-performance red-emitting phosphors for high-quality wLED applications. Based on this consideration, we developed a novel Mn 2+ -doped red Ca 18 K 3 Sc(PO 4 ) 14 :Mn 2+ (CKSP:Mn 2+ ) phosphor. The emission peak of CKSP:Mn 2+ is located at 640 nm, presenting a broadband red emission with a fwhm of 79 nm under 405 nm excitation. The CKSP:1.0Mn 2+ phosphor shows superior thermal stability. At 150 °C, the integrated PL intensity and peak intensity of the CKSP:1.0Mn 2+ phosphor maintain 93.2 and 85.7% of those at 25 °C, respectively. Through the strategy of energy transfer among Ce 3+ -Eu 2+ -Mn 2+ , the PL intensity of Mn 2+ has increased by nearly 118 times, and the quantum yield has improved from 6 up to 72%. The structure-related photoluminescence and energy transfer mechanisms are discussed in detail. The as-fabricated wLED pumped by a 370 nm LED chip combining commercial the green (Sr,Ba) 2 SiO 4 :Eu 2+ phosphor, blue BaMgAl 10 O 17 :Eu 2+ phosphor, and the as-synthesized CKSP:1.0Mn 2+ , 0.02Eu 2+ , 0.40Ce 3+ phosphor shows excellent color quality (CCT = 5555 K, Ra = 87), which indicates that the CKSP:1.0Mn 2+ , 0.02Eu 2+ , 0.40Ce 3+ phosphor has extraordinary broad prospects in future wLED applications.

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Investigations on structural and spectral properties of undoped and Mn2+ doped SrZn2(PO4)2 nanophosphors for light emitting devices

Khidhirbrahmendra

Basha

Avinash

et al. 2019

J Mater Sci: Mater Electron

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Luminescence enhancement of SrZn2(PO4)2:Eu2+,Mn2+ phosphor co-doped with Al3+

Cited by 14 publications

References 39 publications

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Thermally Stable Red-Emitting Ca₁₈K₃Sc(PO₄)₁₄:Mn²⁺ Phosphor and Enhanced Luminescence by Energy Transfer Between Ce³⁺-Eu²⁺-Mn²⁺

Investigations on structural and spectral properties of undoped and Mn2+ doped SrZn2(PO4)2 nanophosphors for light emitting devices

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Luminescence enhancement of SrZn2(PO4)2:Eu2+,Mn2+ phosphor co-doped with Al3+

Cited by 14 publications

References 39 publications

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Thermally Stable Red-Emitting Ca18K3Sc(PO4)14:Mn2+ Phosphor and Enhanced Luminescence by Energy Transfer Between Ce3+-Eu2+-Mn2+

Investigations on structural and spectral properties of undoped and Mn2+ doped SrZn2(PO4)2 nanophosphors for light emitting devices

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Product

Resources

About

Thermally Stable Red-Emitting Ca₁₈K₃Sc(PO₄)₁₄:Mn²⁺ Phosphor and Enhanced Luminescence by Energy Transfer Between Ce³⁺-Eu²⁺-Mn²⁺