A series of ( , ; , ) phosphors was synthesized by the evacuated sealed quartz ampoule method. X-ray powder diffraction analysis confirmed the formation of the complete solid solutions of and . With the and content increasing, the emission peaks of and show an obvious blueshift in the range of . A tunable bluish-green to greenish-yellow light can be controlled by simply adjusting the content of in and in . All the characteristics indicate that the solid solution phosphors are good phosphor candidates for white light-emitting diodes (LEDs).
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Yu et al. (2008) studied this question.
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