Synthesis and Luminescent Properties of a Novel Red‐Emitting Phosphor Ba 2 ZnSi 2 O 7 :Eu 3+ , B 3+ for Ultraviolet Light‐Emitting Diodes
Source abstract
Abstract
A novel red‐emitting phosphor Ba 1.95 ZnSi 2 O 7 :Eu 0.05 3+ , B x 3+ was prepared by combustion synthesis and an efficient red emission under near‐ultraviolet (UV) was observed. The luminescence, crystallinity, and particle sizes were investigated using luminescence spectrometry, X‐ray diffractometry, and scanning electron microscopy. The emission spectrum shows that the most intense peak is located at 614 nm, which corresponds to the 5 D 0 → 7 F 2 transition of Eu 3+ . The phosphor has two main excitation peaks located at 394 and 465 nm, which match the emission of UV and blue light‐emitting diodes, respectively. The optical absorption spectra of Ba 1.95 ZnSi 2 O 7 :Eu 0.05 3+ , B 0.06 3+ exhibited a band‐gap energy of 3.95 eV. The results showed that boric acid was effective in improving the luminescence intensity of Ba 1.95 ZnSi 2 O 7 :Eu 0.05 3+ , and the optimum molar ratio of boric acid to zinc nitrate was about 0.06. The phosphor Ba 1.95 ZnSi 2 O 7 :Eu 0.05 3+ , B 0.06 3+ synthesized by the combustion method showed 1.8 times improved emission intensity compared with that of the Ba 1.95 ZnSi 2 O 7 :Eu 0.05 3+ phosphor under λ ex =394 nm.
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Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Advanced Photocatalysis Techniques · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (25)
Show source-provided references
1. 10.1126/science.110871210.1126/science.1108712 ↗
2. Inorganic Luminescent Material
3. Novel Red Phosphors for Solid‐State Lighting
4. 10.1016/j.jpcs.2008.07.01210.1016/j.jpcs.2008.07.012 ↗
5. 10.1039/b105963g10.1039/b105963g ↗
6. Shape‐Induced Enhanced Luminescent Properties of Red Phosphors
7. Hydrothermal Synthesis and Size‐Enhanced Chromaticity of Sr2ZnSi2O7:Eu3+ Nanoparticles10.1166/jnn.2008.18212 ↗
8. A. M.Srivastava T. F.McNulty H. A.Comanzo andD. D.Doxsee. “Phosphor for Down Converting Ultraviolet Light of LEDs to Blue‐Green Light ” U.S. Patent No. 6555958 2005.
9. 10.2478/s11534-008-0153-710.2478/s11534-008-0153-7 ↗
10. 10.1016/S0925-8388(03)00009-410.1016/S0925-8388(03)00009-4 ↗
11. 10.1016/j.stam.2007.09.00310.1016/j.stam.2007.09.003 ↗
12. 10.1016/j.matlet.2007.08.05610.1016/j.matlet.2007.08.056 ↗
13. 10.1016/j.optmat.2006.04.00610.1016/j.optmat.2006.04.006 ↗
14. 10.1016/j.jssc.2008.06.00510.1016/j.jssc.2008.06.005 ↗
15. 10.1016/j.jallcom.2004.09.07510.1016/j.jallcom.2004.09.075 ↗
16. 10.1016/0167-577X(88)90045-610.1016/0167-577X(88)90045-6 ↗
17. Crystal Structure of the New Barium Zinc Silicate Ba2ZnSi2O7
18. 10.1107/S056773947600155110.1107/S0567739476001551 ↗
19. 10.1007/978-3-642-50076-310.1007/978-3-642-50076-3 ↗
20. Efficient Silicon Light Emitting Diodes by Boron Implantation
21. 10.1016/j.jallcom.2005.03.00210.1016/j.jallcom.2005.03.002 ↗
22. 10.1007/978-3-642-79017-110.1007/978-3-642-79017-1 ↗
23. Surface Characterization of Nickel Boride and Nickel Phosphide Catalysts by X‐Ray Photoelectron Spectroscopy
24. 10.1021/jp802383a10.1021/jp802383a ↗
25. 10.1103/PhysRev.127.75010.1103/PhysRev.127.750 ↗