Enhanced photoluminescence due to Bi3+ → Eu3+ energy transfer and re-precipitation of RE doped homogeneous sized Y2O3 nanophosphors

Abhijit P. Jadhav, Sovann Khan, Seung Yong Lee, Jong Ku Park, Sung Wook Park, Ju Hyun Oh, Byung Kee Moon, Kiwan Jang, Soung Soo Yi, Jung Hwan Kim, So Hye Cho, Jung Hyun Jeong

Research output: Contribution to journalArticlepeer-review

Abstract

Precipitation and re-precipitation of metal ions has been carried out from original and supernatant solution producing Bi3+ - Eu3+ doped Y2O3:Eu3+ and Eu3+/Tb3+ doped Y2O3, respectively. Shorter reaction time is unable to consume all metal ions present in the solution which can be utilized through re-precipitation process. The doping of Bi3+ - Eu3+ in Y2O3 helps to absorb maximum UV light. The activation of Y2O3 matrix by Bi3+ and Eu3+ ions, together and separately, were studied considering the excitation energy transfer to the luminescence centers. The successful replacement of Y3+ by RE3+ ions can help for fine tuning of emission wavelength. Re-precipitation of supernatant solution by adding terbium precursor can successively produce uniform sized Tb3+ doped Y2O3:Eu3+. The re-precipitation of the supernatant solution ensures maximum consumption of metal ions for higher product yield and possible fine tuning of emission wavelengths.

Original languageEnglish
Pages (from-to)186-192
Number of pages7
JournalMaterials Research Bulletin
Volume83
DOIs
Publication statusPublished - Nov 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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