Synthesis and photoluminescence characterization of RE3+ (=Eu3+, Dy3+)-activated Ca3La(VO4)3 phosphors for white light-emitting diodes
作者： B Vengala Rao , Kiwan Jang , Ho Sueb Lee , Soung-Soo Yi , Jung-Hyun Jeong
DOI: 10.1016/J.JALLCOM.2009.12.175
关键词:
摘要: Abstract Ca3La(VO4)3:RE3+ (=Eu3+, Dy3+) powder phosphors have been synthesized by a chemical co-precipitation method. From the measured emission profiles, we noticed that Eu3+ phosphor shows five transitions of 5D0 → 7F0,1,2,3,4 and Dy3+ exhibits two prominent emissions 4F9/2 → 6H13/2,15/2 along with weak red emission. Excitation spectra these commonly show an intense broad excitation band in wavelength region 250–350 nm which is charge transfer (CTB) aroused due to interaction between RE3+–O2− V–O bonds. Besides explaining CTB, photoluminescence properties were investigated under near-UV/blue light wavelengths. For XRD, SEM FTIR features also recorded explore their structural details.
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sci-hub.se 参考文章(24)
A. A. Setlur, H. A. Comanzo, A. M. Srivastava, W. W. Beers, Spectroscopic evaluation of a white light phosphor for UV-LEDs-Ca2NaMg2V3O12:Eu3+ Journal of The Electrochemical Society. ,vol. 152, ,(2005) , 10.1149/1.2077328
A. Mech, M. Karbowiak, L. Kępiński, A. Bednarkiewicz, W. Stręk, Structural and luminescent properties of nano-sized NaGdF4:Eu3+ synthesised by wet-chemistry route Journal of Alloys and Compounds. ,vol. 380, pp. 315- 320 ,(2004) , 10.1016/J.JALLCOM.2004.03.005
Keun-Choon Park, Sun-il Mho, Photoluminescence properties of Ba3V2O8, Ba3(1−x)Eu2xV2O8 and Ba2Y2/3V2O8:Eu3+ Journal of Luminescence. ,vol. 122, pp. 95- 98 ,(2007) , 10.1016/J.JLUMIN.2006.01.107
Xiuzhen Xiao, Bing Yan, Chemical co-precipitation synthesis and photoluminescence of Eu3+ or Dy3+ doped Zn3Nb2O8 microcrystalline phosphors from hybrid precursors Materials Science and Engineering: B. ,vol. 136, pp. 154- 158 ,(2007) , 10.1016/J.MSEB.2006.09.020
May Nyman, Mark A. Rodriguez, Lauren E. Shea-Rohwer, James E. Martin, Paula P. Provencio, Highly versatile rare earth tantalate pyrochlore nanophosphors. Journal of the American Chemical Society. ,vol. 131, pp. 11652- 11653 ,(2009) , 10.1021/JA903823W
Henning A. Höppe, Recent Developments in the Field of Inorganic Phosphors Angewandte Chemie. ,vol. 48, pp. 3572- 3582 ,(2009) , 10.1002/ANIE.200804005
Chongfeng Guo, Shuiting Wang, Tao Chen, Lin Luan, Yan Xu, Preparation of phosphors AEu(MoO4)2 (A = Li, Na, K and Ag) by sol-gel method Applied Physics A. ,vol. 94, pp. 365- 371 ,(2009) , 10.1007/S00339-008-4811-9
S. Ray, A. Banerjee, P. Pramanik, Shape controlled synthesis, characterization and photoluminescence properties of YVO4:Dy3+/Eu3+ phosphors Materials Science and Engineering B-advanced Functional Solid-state Materials. ,vol. 156, pp. 10- 17 ,(2009) , 10.1016/J.MSEB.2008.09.049
S. Erdei, F.W. Ainger, D. Ravichandran, W.B. White, L.E. Cross, Preparation of Eu3+: YVO4 red and Ce3+, Tb3+: LaPO4 green phosphors by hydrolyzed colloid reaction (HCR) technique Materials Letters. ,vol. 30, pp. 389- 393 ,(1997) , 10.1016/S0167-577X(96)00230-3
I. Guedes, Y. Hirano, M. Grimsditch, N. Wakabayashi, C.-K. Loong, L. A. Boatner, Raman study of phonon modes in ErVO4 single crystals Journal of Applied Physics. ,vol. 90, pp. 1843- 1846 ,(2001) , 10.1063/1.1384858