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Eu3+, Bi3+ codoped Lu2O3 nanopowders: Synthesis and luminescent properties

Published online by Cambridge University Press:  16 May 2013

Angel Morales Ramírez
Affiliation:
Instituto Politécnico Nacional, CIITEC IPN, Cerrada de Cecati S/N. Col. Santa Catarina, Azcapotzalco México D.F. C.P. 02250, México
Margarita García Hernández*
Affiliation:
Departamento de Ciencias Naturales, DCNI, Universidad Autónoma Metropolitana, Unidad Cuajimalpa, Pedro Antonio de los Santos 84, 11850 México D.F., México
Jonathan Yepez Ávila
Affiliation:
Instituto Politécnico Nacional, ESIQIE, UPALM S/N Col. Lindavista, Gustavo A. Madero D.F. C.P. 07738, México
Antonieta García Murillo
Affiliation:
Instituto Politécnico Nacional, CIITEC IPN, Cerrada de Cecati S/N. Col. Santa Catarina, Azcapotzalco México D.F. C.P. 02250, México
Felipe Carrillo Romo
Affiliation:
Instituto Politécnico Nacional, CIITEC IPN, Cerrada de Cecati S/N. Col. Santa Catarina, Azcapotzalco México D.F. C.P. 02250, México
Elder de la Rosa
Affiliation:
Centro de Investigaciones en Óptica A.C, A.P. 1-94837150, León, Gto., México
Vicente Garibay Febles
Affiliation:
Instituto Mexicano del Petróleo, Programa de Ingeniería Molecular, México, DF
Joan Reyes Miranda
Affiliation:
Instituto Politécnico Nacional, CIITEC IPN, Cerrada de Cecati S/N. Col. Santa Catarina, Azcapotzalco México D.F. C.P. 02250, México
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Eu3+, Bi3+ codoped Lu2O3 powders (Eu = 2.5 at.%, Bi = 0–3.0 at.%) were prepared using the sol–gel method. Fourier transform infrared spectroscopy, x-ray diffraction, and excitation and emission spectra were carried out to characterize the synthesis, structure, and luminescent properties. The excitation spectra show a strong peak at 350–390 nm, corresponding to the Bi3+1S03P1 transition, and the emission spectra present the emission from 5D07FJ (J = 0, 1, 2, 3, 4) level of Eu3+. The intensity of the reddish emission at 612 nm was monitored as a function of the Bi3+ content and showed a light yield increment of ≈400% compared to a monodoped sample at 1.0% at. Bi3+, produced by an energy transfer process from Bi3+ to Eu3+. This was a consequence of the overlapping of the Bi3+3P11S0 emission with the f–f Eu3+ transitions.

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Articles
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Copyright © Materials Research Society 2013 

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References

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