A series of Eu3+-Bi3+ co-doped CaMoO4 red phosphors were synthesized via the solid-sate reaction method.The crystal structures of the obtained samples were identified by X-ray powder diffraction (XRD).The photoluminescence property was investigated,and the results showed that the intensity of excitation spectra and emission spectra could be changed with different doping ratios of Bi3+/Eu3+.The proposed explanation of these changes was from the energy transfer between Bi3+ and Eu3+ and the unbalanced charge from the substitution of Eu3+ and Bi3+ for Ca2+ in CaMoO4.The obtained samples are a promising red light emitting phosphor for the needs of different excitation sources with near-UV and blue GaN-based chips.
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