Near infrared long-persistent phosphorescence in SrAl2O4:Eu2+,Dy3+,Er3+ phosphors based on persistent energy transfer

Naiyin Yu; Feng Liu; Xufan Li; Zhengwei Pan
December 2009
Applied Physics Letters;12/7/2009, Vol. 95 Issue 23, p231110
Academic Journal
Eu2+, Dy3+, and Er3+ ions codoped SrAl2O4 phosphors with near infrared (NIR) (at 1530 nm) long-persistent phosphorescence were synthesized by a combustion method. The NIR phosphorescence emission was realized through a persistent energy transfer process from Eu2+ ions to Er3+ ions. Optimal Er3+ concentration for the maximum energy transfer efficiency was determined and NIR phosphorescence persisting for more than 10 min was achieved. A model of charge trapping and energy transfer process among Eu, Dy, and Er ions in SrAl2O4 host was proposed.


Related Articles

  • ELECTROLUMINESCENCE STUDY OF ZnS: Sm, Li PHOSPHOR USING SOLID STATE REACTION METHOD. Srivastava, Smriti; Srivastava, Rajneesh K.; Prakash, S. G. // Digest Journal of Nanomaterials & Biostructures (DJNB);Oct2010, Vol. 5 Issue 4, p829 

    In the present work we have attempted to study the electroluminescent (EL) properties of ZnS: Sm, Li luminophor.The phosphor is synthesized using solid state reaction method. A comparative study has been made for electroluminescent emission characteristics of five samples viz ZnS:Cu,Li, ZnS:Sm,...

  • Effects of distorted lattice and nonequal-valvence substitution on the long lasting phosphorescence of Eu2+ and Gd3+ doped RMg2(PO4)2 (R=Sr,Ba) phosphors. Liyan Liu; Ran Pang; Chengyu Li; Qiang Su // Journal of Applied Physics;Sep2010, Vol. 108 Issue 4, p043101 

    The afterglow of Eu2+ activated SrMg2(PO4)2 can be greatly enhanced by the codoping of Gd3+, as well as an interesting phenomenon of the improvement of the efficiency of the excitation light. However, Eu2+ activated BaMg2(PO4)2 does not show the phosphorescence until the codoping of Gd3+. It is...

  • Hydrothermal synthesis and photoluminescence properties of YZrO:Tb phosphors. Linhui Gao; Yue An; Hongliang Zhu; Lun Wang; Jianjun Chen; Naiyan Wang; Guofu Ou // Journal of Materials Science;Mar2011, Vol. 46 Issue 5, p1337 

    This article presents the synthesis and photoluminescence (PL) properties of YZrO:Tb. The Tb-doped YZrO zirconates were successfully synthesized by a hydrothermal process at 200 °C for 20 h. X-ray diffractometer (XRD) patterns revealed that all of the products were phase-pure with the...

  • Femtosecond x-ray diffraction using the rotating crystal method. Freyer, B.; Stingl, J.; Zamponi, F.; Woerner, M.; Elsaesser, T. // EPJ Web of Conferences;2013, Issue 41, p12004-p.1 

    We demonstrate the rotating-crystal method in femtosecond x-ray diffraction. Structural dynamics of a photoexcited bismuth crystal is mapped in a pump-probe scheme by measuring intensity changes of many Bragg reflections simultaneously

  • Luminescence properties and energy transfer of a red-emitting Ca (PO):Sm, Eu phosphor. Wang, Tao; Hu, Yi-hua; Chen, Li; Wang, Xiao-juan // Journal of Materials Science: Materials in Electronics;Jul2015, Vol. 26 Issue 7, p5360 

    A series of Sm, Eu and Sm-Eu doped Ca(PO) were prepared by a high temperature solid-state method. Their luminescent properties were studied by photoluminescence emission, excitation spectra and decay curves. Under excitation with a wavelength at 403 nm, Ca(PO):Sm emits red-orange light, and the...

  • Energy transfer between Eu–Mn and photoluminescence properties of Ba0.75Al11O17.25–BaMgAl10O17:Eu2+,Mn2+ solid solution. Jun Zhou; Yuhua Wang; Bitao Liu; Feng Li // Journal of Applied Physics;Aug2010, Vol. 108 Issue 3, p033106 

    In order to evaluate the energy transfer between Eu–Mn in Ba0.75Al11O17.25–BaMgAl10O17 solid solution, Ba0.75Al11O17.25–BaMgAl10O17:Eu2+,Mn2+ phosphors were prepared by flux method. The crystal structure and the morphology of the solid solution were demonstrated by x-ray...

  • Enhanced electrophosphorescence of copper complex based devices by codoping an iridium complex. Su, Zisheng; Li, Wenlian; Che, Guangbo; Xu, Maoliang; Kong, Zhiguo; Wang, Dan; Xin, Qi; Han, Liangliang; Chu, Bei; Bi, Defeng // Applied Physics Letters;4/2/2007, Vol. 90 Issue 14, p143505 

    Evidently enhanced electrophosphorescence of [Cu(bis[2-(diphenylphosphino)phenyl] ether)(6,7-dicyanodipyrido [2,2-d:2′,3′-f] quinoxaline)] BF4 (CuI complex) by codoping bis[(4,6-difluorophenyl)-pyridinato-N, C2](picolinato)Ir(III) (FIrpic) into the same host,...

  • Photoluminescence characteristics of new stannate pyrochlore based red phosphors: CaLaSnNbO: Eu. Mahesh, S.; Rao, P.; Thomas, Mariyam; Radhakrishnan, A.; Koshy, Peter // Journal of Materials Science: Materials in Electronics;Sep2012, Vol. 23 Issue 9, p1605 

    New stannate pyrochlore based red emitting phosphor materials: CaLaSnNbO: xEu were prepared by the conventional solid state route and characterized by Powder X-ray diffractometer, scanning electron microscope and fluorescence measurements. Optimization studies by way of varying the calcination...

  • Nanocrystalline LaGaO3:Tm3+ as an efficient blue phosphor for field emission displays with high color purity. Liu, Xiaoming; Lin, Jun // Applied Physics Letters;4/30/2007, Vol. 90 Issue 18, p184108 

    Nanocrystalline Tm3+-doped LaGaO3 phosphors were prepared through a Pechini-type sol-gel process [M. P. Pechini, U.S. Patent No. 3,330,697 (11 July 1967)]. X-ray diffraction, field emission scanning electron microscopy, photoluminescence, and cathodoluminescence (CL) spectra were utilized to...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics