Low temperature synthesis and luminescence investigations of YAG:Ce, Eu nanocomposite powder for warm white light-emitting diode

• The europium co-doped YAG:Ce3+ powders were synthesized using a high-energy ball milling method.
• The optical properties and luminescence mechanism of the YAG:Ce3+, Eu3+ powders, PL and PLE spectra were measured and discussed.
• The co-doping of Eu3+, the red shift is become and the light becomes “warmer”.

The preparation of the cerium and europium co-doped YAG materials as well as the study for their synthesis and emitting mechanism of the energy transfer between Ce3+ and Eu3+ were investigated in the present study. YAG:Ce3+, Eu3+ powders were synthesized using a high-energy ball milling method in different sintering temperature and atmosphere: air and H2/N2. The effects of the synthesis procedure on the crystallinity, morphology, structure, and luminescence spectra were examined by X-ray diffraction, field emission-scanning electron microscopy, and photoluminescence spectroscopy. The europium co-doped YAG:Ce3+ phosphors is improved the chromaticity coordinates.

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