Photoluminescence properties of Ba3Si6O12N2:Eu2 + oxynitride phosphor synthesized by liquid phase precursor method

Ba3Si6O12N2 green-emitting phosphors were synthesized using oxide precursor by liquid phase precursor (LPP) method under a flowing NH3 gas. X-ray diffraction patterns showed that the prepared phosphor indicated a Ba3Si6O12N2 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 4f65d → 4f7 electronic transition of Eu2 + ion. Compared with emission intensity of prepared sample, the emission intensity of Ba3Si6O12N2 green-emitting phosphors using LPP method is more than 2.5 times than that of Ba3Si6O12N2 green-emitting one by a solid state reaction method. The synthesis of phosphor using the LPP method is expected as alternative synthesis method.

► Eu2 +-activated Ba3Si6O12N2 phosphors were successfully synthesized by LPP method.
► Emission intensity increased up to 2.5 times compared with phosphor by SSR method.
► The synthesis of phosphor using LPP method is presented as an alternative method..