Study of Addition of Tetraethyl Orthosilicate (TEOS) on Microstructure and Iuminescence Properties of Nanoparticles of Y2O3: Tb3+ Phosphor Materials

Document Type : Original Articles

Author

• Seyed Mahdi Rafiaei

Golpayegan University of Technology

10.22067/ma.v31i1.73528

Abstract

In this investigation, firstly Y2O3: Tb +3 nano-powders with the approximate size of 80 nm was synthesized via sol-gel approach. Then, with the addition of Tetraethyl orthosilicate (TEOS) to the considered raw materials, the doped YSO compounds were produced in the presence of different amounts of SiO2 and crystallographic and microscopic structure and also the luminescence properties of the produced materials were evaluated. To study the formed phases and also particle size and morphology of Y2O3: Tb +3 and YSO: Tb +3 synthesized structures, X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM) were used. In this research, interestingly it was seen that the addition of silica results in the severe grain growth and this size reaches to 300-400 nm. In addition, with the employment of photoluminescence analyzer, the optical properties of these materials were studied. Finally, it was determined that in a case that the quantity of consumed SiO2 phase is equal to the stoichiometric values required for the formation of Y2SiO5, the highest emission intensity is achieved and the higher amounts of SiO2 leads to the reduction of intensity.

Keywords

• Sol-gel
• Optical properties
• Luminescence
• Nano
• Phosphor Materials

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References

1. Zhang X., Fu Y., Zhao Z., Yang J., Li N., Zhang M., "Statistical design for the optimization of the red to orange ratio in YBO3: Eu3+ phosphors", Journal of Luminescence, Vol. 194, pp.311-315 (2018).
2. Yano K., Takeshita S., Iso Y., Isobe T., "Combinatorial optimization of the atomic compositions for green-emitting YBO3:Ce3+,Tb3+ and red-emitting YBO3:Ce3+,Tb3+,Eu3+ phosphors using a microplate reader", RSC. Adv. Vol. 7, pp. 17586-17592 (2017).
3. Rafiaei S.M., Kim A., Shokouhimehr M., "Enhanced luminescence Properties of Combustion Synthesized Y2O3:Gd Nanostructure", Current Nanoscience, Vol. 12, pp. 244-249 (2016).
4. Shokouhimehr M., Rafiaei S.M., "Combustion synthesized YVO4:Eu3+ phosphors: effect of fuels on nanostructure and luminescence properties", Ceramics International, Vol. 43, pp. 11469-11473 (2017).
5. Dai Q.L., Foley M.E., Breshike C.J., Lita A., Strouse G.F., "Ligand-passivated Eu:Y2O3 Nanocrystals as a Phosphor for White Light Emitting Diodes", Journal of American Chemistry Society, Vol.133, pp. 15475-15486 (2011).
6. Qin X.P., Zhou G.H., Yang H., Yang Y., Zhang J., Wang S.W., "Synthesis and upconversion luminescence of monodispersed, submicron-sized Er3+:Y2O3 spherical phosphors", Journal of Alloys and Compounds, Vol. 493, pp. 672-677 (2010).
7. Singh, V., Rai, V. K., Ledoux-Rak, I., Watanabe, S., Gundu, Rao, T. K., Chubaci, J., Badie, L., Pelle, F., Ivanova, S., "NIR to visible up-conversion, infrared luminescence, thermoluminescence and defect centres in Y2O3 : Er phosphor", Journal of Physics D: Applied Physics, Vol. 42, pp. 065104-065112 (2009).
8. Vetrone F., Boyer J.C., Capobianco J.A., Speghini A., Bettinelli M., "A spectroscopic investigation of trivalent lanthanide doped Y2O3 nanocrystals", Nanotechnology, Vol. 15, pp. 75–81 (2004).
9. Som S., Sharma S.K., "Eu3+/Tb3+-codoped Y2O3 nanophosphors: Rietveld refinement, bandgap and photoluminescence optimization", Journal of Physics D: Applied Physics, Vol. 45, pp. 415102-415112 (2012).
10. Atabaev T.S., Hwang Y.H., Kim H.K., "Color-tunable properties of Eu3+- and Dy3+-codoped Y2O3 phosphor particles", Nanoscale Research Letters, Vol. 7, pp. 556-562 (2012).
11. Sukul P.P., Mahata M.K., Kumar K., "NIR optimized dual mode photoluminescence in Nd doped Y2O3 Ceramicphosphor", Journal of Luminescence, Vol. 185, pp. 92–98 (2017).
12. Gao L., Wang G., Zhu H., Zhou W., Ou G., "Hydrothermal synthesis of Y2O3 coated Y2O3:Eu3+ nanotubes for enhanced photoluminescence properties". Materials Research Bulletin, Vol. 70, pp. 876–880 (2015).
13. Mancic L., Lojpur V., Marinkovic B.A., Dramicanin M.D., Milosevic O., "Hydrothermal synthesis of nanostructured Y2O3 and (Y0.75Gd0.25)2O3 based phosphors", Optical Materials, Vol. 35, pp. 1817-1823 (2013).
14. Vazquez R.M., Hernandez M.G., Marure A.L., Camacho P.Y.L., Ramirez A.D.J.M., Conde H.I.B., "Sol-Gel Synthesis and Antioxidant Properties of Yttrium Oxide Nanocrystallites Incorporating P-123", Materials, Vol. 7, pp. 6768-6778 (2014).
15. Koo H.Y., Ju S.H., Hong S.K., Jung D.S., Kang Y.C., Jung K.Y., "Effect of Boric Acid Flux and Drying Control Chemical Additive on the Characteristics of Y2O3: Eu Phosphor Particles Prepared by Spray Pyrolysis", Japanese Journal of Applied Physics, Vol. 45, pp. 9083-9087 (2006).
16. Rafiaei S.M., Kim A., Shokouhimehr M., "Enhanced luminescence Properties of Combustion Synthesized Y2O3:Gd Nanostructure", Current Nanoscience, Vol. 12,pp. 244-249 (2016).
17. Shokouhimehr M., Rafiaei S.M., "Combustion synthesized YVO4:Eu3+ phosphors: effect of fuels on nanostructure and luminescence properties", Ceramics International, Vol. 43, pp. 11469-11473 (2017).
18. Kabira M., Ghahari M., Afarani M.S., "Co-precipitation synthesis of nanoY2O3:Eu3+ with different morphologies and its photoluminescence properties", Ceramics International, Vol. 40, pp. 10877–10885 (2014).
19. Pang Q., Shi J., Liu Y., Xing D., Gong M., Xu N., "A Novel Approach for Preparation of Y2O3:Eu3+ Nanoparticles by Microemulsion-Microwave Heating", Materials Science and Engineering B, Vol. 103, pp. 57-61 (2003).
20. Yu H., Wang H., Li T., Che R., "Preparation and luminescent properties of YBO3: Eu nanofibers by electrospinning", Applied Physics A, Vol. 108, pp. 223 -227 (2012).
21. Ogi T., Nandiyanto A.B.D, Okino K., "Towards better phosphor design: effect of SiO2 nanoparticles on photoluminescence enhancement of YAG:Ce". ECS Journal of Solid State Science and Technology, Vol. 2, pp. 91–95 (2013).
22. Rafiaei S.M., Kang S., "Effect of nano-sized SiO2 on the optical properties of YVO4:Eu3+ phosphors", Composite Interfaces, Vol. 24, pp. 319–333 (2017).
23. Do H.S., Kim E.J., Hong S.H., "Improved moisture resistance of SrS:Eu2+ phosphors with nanoscale SiO2 coating", Journal of Luminescence, Vol. 130, pp. 1400–1403 (2010).
24. Jiang L., Zhang Z., Xiao Y., Wang Q., "Novel templates directed synthesis of YVO4: Eu3+ (red) and Y2O3–SiO2: Tb3+(green) phosphors", Journal of Luminescence, Vol. 132, pp. 2822–2825 (2012).