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Advances in Nano Research
  Volume 3, Number 2, June 2015, pages 055-66
DOI: http://dx.doi.org/10.12989/anr.2015.3.2.055
 


Ce3+ sensitize RE3+ (RE=Dy, Tb, Eu, Sm) doped LaPO4 nanophosphor with white emission tunability
G. Phaomei and N. Yaiphaba

 
Abstract
    Crystalline Ce3+ co-doped LaPO4:RE (RE=Dy3+, Tb3+, Eu3+, Sm3+) and mix doped rare earth ions of Dy3+, Tb3+ and Eu3+ were prepared by the polyol method at 150oC. Strongly enhance luminescence intensity is obtained with the co-doping of Ce3+ with LaPO4:Dy3+ and LaPO4:Tb3+ due to charge transfer (CT) occurring from Ce3+to Dy3+ and Ce3+ to Tb3+, where as there is no significant changes in luminescence intensity of Ce3+ co-doped Eu3+ and Sm3+ doped LaPO4 samples. The luminescence color can be tuned from green to white by varying the excitation wavelength for the mix ions Ce3+, Dy3+, Tb3+ and Eu3+ doped with LaPO4.
 
Key Words
    white emission; nanoparticle; mix ions doping; luminescence
 
Address
G. Phaomei: Department of Chemistry, Berhampur University, Bhanja Bihar, Odisha-760007, India
N. Yaiphaba: Department of Chemistry, D.M. College of Science, Imphal, Manipur-795001, India
 

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