Luminescence properties of Lu3M5O12 : Eu3+ (M = Al, Ga) and effects of Bi3+ co-dopant

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

8 Scopus Citations
View graph of relations



Original languageEnglish
Pages (from-to)43-49
Journal / PublicationJournal of Sol-Gel Science and Technology
Issue number1
Publication statusPublished - 12 Oct 2015


Abstract: The Eu3+-doped and Eu3+, Bi3+ co-doped Lu3M5O12 (LuMG where M = Al, Ga) phosphors are synthesized by spray pyrolysis, and the crystal structure, micromorphology, luminescence properties and effects of Bi3+ co-dopant are investigated. X-ray diffraction reveals that the crystal structures of the matrices do not change after partial replacement of Lu3+ by Eu3+ and Bi3+. The phosphors exhibit the same spherical micromorphology without agglomeration and particle size distribution with a typical diameter of about 0.7 μm. The emission and excitation spectra show transitions associated with the Eu3+ 4f configurations. 7F1 energy level splitting of Eu3+ in Lu3Al5O12:Eu and stronger luminescence of Lu3Ga5O12:Eu are observed, and the quenching concentrations of Eu3+ in Lu3Al5O12:Eu and Lu3Ga5O12:Eu are 6 and 10 mol% with respect to Lu3+, respectively. Introduction of Bi3+ enhances the emission of Eu3+ accompanied by the transition emission of Bi3+. Graphical Abstract: [Figure not available: see fulltext.]

Research Area(s)

  • Energy transfer, Lu<inf>3</inf>Al<inf>5</inf>O<inf>12</inf>:Eu, Lu<inf>3</inf>Ga<inf>5</inf>O<inf>12</inf>:Eu, Luminescence properties, Spray pyrolysis