Preparation and photoluminescence properties of MgNb2O6:Eu3+, Bi3+ red-emitting phosphor

• Autorzy: Zhou L. , Huang J. , Mo F

Identyfikatory

DOI

10.2478/s13536-013-0157-x

• Języki publikacji: EN

Abstrakty

EN

Rare earth Eu³⁺-doped MgNb2O6 red-emitting phosphor was prepared by solid-state reaction. Structure and photoluminescence properties of the samples were characterized by X-ray diffraction (XRD), scan electron microscopy (SEM) and fluorescence spectrophotometer. Meanwhile, the effect of the co-activator Bi3+ on the PL of the MgNb2O6:Eu3+ phosphor was studied. The results showed that the pure phase of MgNb2O6 could be available after firing at 1200 °C. The Mg_1-xNb2O6:Eu3+ x phosphors could be effectively excited by the UV irradiation (273 nm) and emit red light at 615 nm due to the forced electric dipole 5D0 !7 F2 transitions on Eu³⁺, which indicated that Eu³⁺ occupied the non-inversion symmetry sites in the MgNb2O6 host lattice. So, the addition of the co-activator Bi³⁺ not only increased the excitation band of the MgNb2O6:Eu3+ phosphor at about 330 nm, but also strengthened the PL intensity at 615 nm. Therefore, MgNb2O6:Eu3+, Bi3+ might find application to InGaN chip-based white light emitting diodes.

Słowa kluczowe

EN

luminescence; phosphor; solid state reaction

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2014
• Tom: Vol. 32, No. 1
• Strony: 88--92
• Opis fizyczny: Bibliogr. 15 poz., rys., wykr.

Twórcy

autor

Zhou L.

• School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China

autor

Huang J.

• School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China

autor

Mo F

• School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China

Bibliografia

• [1] NARENDRAN N., GU Y., FREYSSINIER-NOVA J.P., ZHU Y., Phys. Status Solidi A, 202 (2005), R60.
• [2] WANG Y.H., SUN Y.K., ZHANG J.C., CI Z.E., ZHANG Z.Y., WANG L., Physica B, 403 (2008), 2071.
• [3] JANG H.S., IM W.B., LEE D.C., JEON D.C., KIM S.S., J. Lumin., 126 (2007), 371.
• [4] ZHU C.Q., XIAO S.G., DING J.W., YANG X.L., QIANG R.F., Mater. Sci. Eng. B-Adv., 150 (2008), 95.
• [5] PARK T.K., AHN H.C., MHO S.I., J. Korean Phys. Soc., 52 (2008), 431.
• [6] FANG T.H., HSIAO Y.J., CHANG Y.S., CHANG Y.H., Mater. Chem. Phys., 100 (2006), 418.
• [7] SHANKER V., GANGUL A., Mater. Sci., 26 (2003), 741.
• [8] LEE H.J., HONG K.S., KIM S.J., KIM I.T., Mater. Res. Bull., 32 (1997), 47.
• [9] ZALDO C., MATIN M.J., COYA C., POLGAR K., PETER A., PAITZ J., J. Phys. Condens. ”Matter., 7 (1995), 224.
• [10] ZHOU Y.Y., MA Q., L¨U M., QIU Z.F., ZHANG A.Y., YANG Z.G., Mater. Sci. Eng. B-Adv., 150 (2008), 66.
• [11] FANG T.H., HSIAO Y.J., CHANG Y.S., JI L.W., KANG S.H., Curr. Opin. Solid St. M., 12 (2008), 51.
• [12] WANG Z.L., LIANG H.B., GONG M.L., SU Q., Opt. Mater., 29 (2007), 896.
• [13] LIU X.M., LIN J., J. Lumin., 122 – 123 (2007), 700.
• [14] XIAO X.Z., YAN B., J. Non-Cryst. Solids, 46 – 48 (2005), 3634.
• [15] RAINHO J.P., CARLOS L.D., ROCHA J., J. Lumin., 87 – 89 (2000), 1083.