YPO4 phosphors single-doped with Sb3+ or Gd3+ and co-doped with Sb3+ and Gd3+were prepared by a solid-state reaction method. The phase purity, morphology, photoluminescence excitation and emission properties of the prepared phosphors were inves-tigated. The results showed that Sb3+ could sensitize Gd3+ in the co-doped phosphors which made the phosphors excitable by short-wave ultraviolet (UV) at a wavelength between 220 and 260 nm. Under 253.7 nm excitation, the co-doped phosphors Y1–x–yPO4: Sb3+x,Gd3+yshowed strong emission of Gd3+ at a wavelength of 312 nm whose intensity changed with the doping concentrations of Gd3+ and Sb3+. The optimized Y0.77PO4:Sb3+0.07,Gd3+0.16 phosphor showed an intensity comparable to commercial LaPO4:Ce phosphor (UVB-315), making it a potential candidate for mercury low-pressure discharge narrow-band UV-B emitting lamps.
参考文献
| [1] | Thakare DS.;Omanwar SK.;Muthal PL.;Dhopte SM.;Kondawar VK.;Moharil SV..UV-emitting phosphors: synthesis, photoluminescence and applications[J].Physica Status Solidi, A. Applied Research,20043(3):574-581. |
| [2] | Huang, C.-H.;Chen, T.-M.;Cheng, B.-M..Luminescence investigation on ultraviolet-emitting rare-earth-doped phosphors using synchrotron radiation[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,201114(14):6552-6556. |
| [3] | P.D. Belsare;C.P. Joshi;S.V. Moharil.Preparation of Ce~(3+)-activated UV-emitting fluoride phosphors[J].Radiation Effects and Defects in Solids,20093(3):197-203. |
| [4] | Pekg?zlü, I..A novel UV-emitting phosphor: LiSr_4(BO_3)_3: Pb~(2+)[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2013:93-95. |
| [5] | Stryganyuk G;Trots DM;Voloshinovskii A;Shalapska T;Zakordonskiy V;Vistovskyy V;Pidzyrailo M;Zimmerer G.Luminescence of Ce3+ doped LaPO4 nanophosphors upon Ce3+ 4f-5d and band-to-band excitation[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,20083(3):355-360. |
| [6] | Vecht A.;Bayley PA.;Crossland WA.;Newport AC..Narrow band 390 nm emitting phosphors for photoluminescent liquid crystal displays[J].Journal of Applied Physics,19987(7):3827-3829. |
| [7] | R.P. Sonekar;S.K. Omanwar;S.V. Moharil;S.M. Dhopte;P.L. Muthal;V.K. Kondawar.Combustion synthesis of narrow UVB emitting rare earth borate phosphors[J].Optical materials,20074(4):622-625. |
| [8] | Feofilov SP;Zhou Y;Seo HJ;Jeong JY;Keszler DA;Meltzer RS.Host sensitization of Gd3+ ions in yttrium and scandium borates and phosphates: Application to quantum cutting[J].Physical review, B. Condensed matter and materials physics,20068(8):5101-1-5101-9-0. |
| [9] | 李旭;王皓岩;关丽;付跃举;郭镇;袁坤生;铁利成;杨志平;滕枫.Influence of pH value on properties of YPO4:Tb3+ phosphor by co-precipitation method[J].稀土学报（英文版）,2015(4):346-349. |
| [10] | Angiuli, F.;Cavalli, E.;Boutinaud, P.;Mahiou, R..Emission properties of Sm~(3+)/Bi~(3+)-doped YPO_4 phosphors[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2013:239-242. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%