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Effect of ZnO Addition on the Photoluminescence of a Novel Phosphate Glass

  • Kim, Young-Seok (Division of Materials Science and Engineering, Pusan National University) ;
  • Lee, Kyu-Ho (Division of Materials Science and Engineering, Pusan National University) ;
  • Kim, Tae-Ho (Division of Materials Science and Engineering, Pusan National University) ;
  • Jung, Young-Joon (Division of Materials Science and Engineering, Pusan National University) ;
  • Ryu, Bong-Ki (Division of Materials Science and Engineering, Pusan National University)
  • Published : 2008.07.01

Abstract

In this work, novel phosphate glasses designed with ZnO contents up to 55 wt% were prepared successfully in the glass-forming region. We verified the dependence of the photoluminescence (PL) on the quantity of ZnO in a $P_2O_5-ZnO-B_2O_3$ glass matrix. Zinc-oxide particles were thermally developed in the highest ZnO-containing glass sample at temperatures ranging from 500 ~ 630 ℃. The photoluminescence spectra was measured at room temperature. The dominant narrow emission band was observed to peak around 388 nm. As ZnO was increased, the emission band showed a tendency to be blue-shifted. The intensity of the PL emission peak had a higher value in a crystallized ZnO matrix than in a glass matrix. An X-ray diffraction (XRD) analysis was conducted on glass powders after different thermal treatments.

Keywords

Acknowledgement

This work was supported by a grant-in-aid for the National Core Research Center Program from the Ministry of Science & Technology and the Korea Science & Engineering Foundation (R15-2006-022-02001-0).

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