Photoluminescence characteristics of Eu3+ doped in phase separated borosilicate glass

Zhidong Yao, Yong Ding, Tokuro Nanba, Yoshinari Miura

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The 6Na2O · 31B2O3 · 63SiO2 (in mol%) glass was chosen. The photoluminescence (PL) characteristics of Eu3+ doped in the glass, which was subjected to different phase separated heat treatments, were investigated systematically. It was found that PL intensity of 5D07F2 transition of Eu3+ increased with phase separation developing. Furthermore, the maximum PL intensities obtained by the different heat treatment processes seem to depend on the morphology induced by phase separation, the droplet morphology having the advantage over the interconnected one with the PL intensities of 6.4 and 5.5 times as high as that in the as-cast sample, respectively. The mechanism of enhancement of the PL intensity was then discussed on the basis of the derived expression of the PL intensity. It was concluded that the induced interface after phase separation, engendering significant increase in light scattering intensity and thereby notable increase in the population of Eu3+ on the 5D0 energy level, accounted for considerable increase in the PL intensity. On the other hand, from the emission intensity ratio of the 5D07F2 to 5D07F1 transitions (R) of Eu3+, the phases into which Eu3+ segregated after various phase separation processes were estimated.

Original languageEnglish
Pages (from-to)141-147
Number of pages7
JournalMaterials Science Research International
Volume4
Issue number3
Publication statusPublished - Sep 1 1998

    Fingerprint

Keywords

  • Borosilicate glass
  • Droplet morphology
  • Eu
  • Interconnected morphology
  • Interface
  • Light scattering
  • PL intensity of D→F transition
  • Phase separation
  • Photoluminescence (PL)

ASJC Scopus subject areas

  • Materials Science(all)

Cite this