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PHOSPHOR AND LIGHT-EMITTING ELEMENT USING IT

2025-06-19 19:562510下载
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PROBLEM TO BE SOLVED : To provide a rare earth borate phosphor with a high luminous efficiency and an excellent emission color. SOLUTION : The phosphor comprises a borate represented by a compositional formula (M1-x-yM1xM2y) (B1-zM3z)O3 (0
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