Abstract
Novel Ln3+-doped (Ln3+ = Tb3+ and Eu3+) and Eu3+, Bi3+ co-doped Ca3Y3Ge2BO13 phosphors were synthesized by a conventional solid-state reaction method. Tb3+- and Eu3+-doped phosphors showed strong narrow green and red emission due to 4f intra-shell transitions of the Tb3+ or Eu3+ ions under the excitation at 254 nm. Bi3+ co-doped Ca3Y3Ge2BO13:Eu3+ phosphor has a new broad strong excitation band appeared at around 302 nm due to 1S0→3P1 transition of Bi3+, and presents red emission owing to 4f-4f transition of Eu3+ under excitation at 302 nm.
Original language | English |
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Pages (from-to) | 507-511 |
Number of pages | 5 |
Journal | Journal of the Ceramic Society of Japan |
Volume | 123 |
Issue number | 1438 |
DOIs | |
Publication status | Published - 2015 Jun 1 |
Externally published | Yes |
Keywords
- Cubic structure
- Energy transfer
- Rare earth doped germanate phosphor
ASJC Scopus subject areas
- Ceramics and Composites
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry