Photoluminescence properties of Ba ₃Si ₆O ₁₂N ₂:Eu ^{2 +} oxynitride phosphor synthesized by liquid phase precursor method

Ba ₃Si ₆O ₁₂N ₂ green-emitting phosphors were synthesized using oxide precursor by liquid phase precursor (LPP) method under a flowing NH ₃ gas. X-ray diffraction patterns showed that the prepared phosphor indicated a Ba ₃Si ₆O ₁₂N ₂ pure single phase. The emission spectra of synthesized phosphors under excited from UV to blue light showed a typically broad green emission wavelength which is assigned to 4f ⁶5d → 4f ⁷ electronic transition of Eu ^{2 +} ion. Compared with emission intensity of prepared sample, the emission intensity of Ba ₃Si ₆O ₁₂N ₂ green-emitting phosphors using LPP method is more than 2.5 times than that of Ba ₃Si ₆O ₁₂N ₂ green-emitting one by a solid state reaction method. The synthesis of phosphor using the LPP method is expected as alternative synthesis method.