| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1787361 | Current Applied Physics | 2011 | 5 Pages |
The photophysical properties of europium-doped calcium titanate for near ultra-violet excitation were studied in order to investigate whether it is applicable to white light-emitting diodes. CaTiO3:Eu3+ phosphors were synthesized by using the solid-state reaction method. The structures and basic properties of the phosphors were characterized by using X-ray diffractometer, scanning electron microscope, UV-visible spectrophotometer, and X-ray photoelectron spectrometer. The photophysical properties were examined by taking excitation and emission spectra. A strong red luminescence corresponding to 5D0 → 7F2 transition of Eu3+ under near ultra-violet excitation was observed. It was found that CaTiO3:Eu3+ was a red-emitting phosphor and had higher efficiency for operation under near ultra-violet excitation.
► CaTiO3:Eu3+ phosphors are synthesized by using the solid-state reaction method. ► Strong luminescence corresponding to 5D0 → 7F2 under near UV excitation was observed. ► CaTiO3:Eu3+ had higher efficiency for operation under near ultra-violet excitation.
