ChemInform Abstract: Synthesis and Enhanced Luminescence Properties of Li-Doped CaTiO3:Pr3+ Ceramic Phosphors.

✍ Scribed by Hyun Kyoung Yang; Jong Won Chung; Byung Kee Moon; Byung Chun Choi; Jung Hyun Jeong; Jong Seong Bae; Kwang Ho Kim

• Publisher: John Wiley and Sons
• Year: 2011
• Weight: 20 KB
• Volume: 42
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.201140004

✦ Synopsis

Synthesis and Enhanced Luminescence Properties of Li-Doped CaTiO 3 :Pr 3+ Ceramic Phosphors. -The title phosphors are prepared by solid state reaction of CaCO3, TiO2, Li2CO3 (0.5, 1, 2, 5 wt.%), and Pr6O11 (800 °C, 4 h, followed by sintering at 1200 °C for 2 h). The samples are characterized by XRD, SEM, XPS, and photoluminescence spectroscopy. They exhibit a red emission peak at 613 nm. Li doping enhances the photoluminescence intensity. The 1.0 wt.% Li-doped CaTiO 3 :Pr 3+ phosphor exhibits the highest luminescence intensity which is improved by a factor of 3.