Preparation and characterization of transparent Eu doped Y 2O 3 aerogel monoliths, for application in luminescence

Jessica Eid, A. C. Pierre, G. Baret

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

This paper focuses on a new sol-gel preparation method of Eu doped Y 2O 3 aerogels, for application in luminescence and their characterization. The preparation method is based on a sol-gel technique using metal salts, by controlling the hydrolysis of these precursors with an epoxide. The monoliths prepared in this manner are transparent in the visible radiation domain. They have a mesoporous texture, a specific surface area of ≈350 to 400 m 2 g -1 and they are X-ray amorphous. The gel network could be clearly observed by Transmission Electron Microscopy and showed the presence of localized poorly crystalline nanodomains, with some Eu segregation. A first evaluation of the luminescence which they develop during crystallization, has been carried out as a function of the heat treatment schedule.

Original languageEnglish (US)
Pages (from-to)218-227
Number of pages10
JournalJournal of Non-Crystalline Solids
Volume351
Issue number3
DOIs
StatePublished - Feb 1 2005

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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