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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 8 — Aug. 1, 2012
  • pp: 081602–

Enhancement of upconversion luminescence of YAlO3: Er3+ by Gd3+ doping

Zhenlong Li, Baoshu Wang, Licheng Xing, Shaolong Liu, Na Tan, Siguo Xiao, and Jianwen Ding  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 8, pp. 081602- (2012)


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Abstract

The upconversion luminescences of YAlO<sub>3</sub>:Er<sup>3+</sup> phosphor co-doping with different Gd<sup>3+</sup> concentrations are investigated under the excitation of 980- and 532-nm diode lasers. A near ultraviolet upconversion emission at 410 nm is observed in YAlO<sub>3</sub> under 532-nm excitation. Moreover, the inactive Gd<sup>3+</sup> ions can improve the upconversion intensity efficiently in a certain range of concentration. Under 980-nm excitation, the visible upconversion emissions at 546 and 646 nm are enhanced by about 10 and 8 times at the Gd<sup>3+</sup> concentration of 40%, respectively. The upconversion emission at 410 nm under 532-nm excitation is also enhanced by 7 times. The substitution of Gd<sup>3+</sup> ions for Y<sup>3+</sup> sites changes the local symmetry of Er<sup>3+</sup>, leading to the improvement of upconversion efficiency.

© 2012 Chinese Optics Letters

OCIS Codes
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Materials

Citation
Zhenlong Li, Baoshu Wang, Licheng Xing, Shaolong Liu, Na Tan, Siguo Xiao, and Jianwen Ding, "Enhancement of upconversion luminescence of YAlO3: Er3+ by Gd3+ doping," Chin. Opt. Lett. 10, 081602- (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-8-081602


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