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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. 7 — Jul. 1, 2012
  • pp: 071602–071602

Effect of P2O5 addition on the structural and spectroscopic properties of sodium aluminosilicate glass

Jia Ding, Youkuo Chen, Wei Chen, Lili Hu, and G. Boulon  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 7, pp. 071602-071602 (2012)


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Abstract

The structural and spectroscopic properties of Na2O-Al2O3-SiO2-xP2O5 glasses (x=0 to 7 mol%) are investigated. Both Raman and IR spectra reveal that discrete phosphate species ([PO4-3, [PO3O1/2]-2) with low polymerization degree can be formed in the silicate glass. These phosphate structures scavenge non-bridging oxygen ions and cations from the silicate network, resulting in an increase of the glass transition temperature. According to the Judd-Ofelt intensity parameters (Ω2, Ω4, Ω6) of Er3+, the asymmetry of local environment around Er3+ becomes higher, and the bond covalency between Er3+ and O2- decreases after P2O5 is introduced. In the emission spectra, photoluminescence intensity increases with increasing P2O5 concentration and the spectra are inhomogeneously broadened, revealing that the ligand electric field around Er3+ is dramatically changed, and the glass matrix becomes disordered.

© 2012 Chinese Optics Letters

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials

ToC Category:
Materials

Citation
Jia Ding, Youkuo Chen, Wei Chen, Lili Hu, and G. Boulon, "Effect of P2O5 addition on the structural and spectroscopic properties of sodium aluminosilicate glass," Chin. Opt. Lett. 10, 071602-071602 (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-7-071602

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