ß-SIALON FLUORESCENT MATERIAL AND LIGHT EMITTING DEVICE
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Mar 27, 2025
app pub date -
Sep 24, 2024
filing date -
Sep 24, 2024
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A β-SiAlON fluorescent material includes fluorescent material particles having a composition represented by the following formula (I), and a coating layer formed on the surface of the fluorescent material particles and having a refractive index smaller than that of the fluorescent material particles, wherein when the β-SiAlON fluorescent material is measured by inductively coupled plasma-atomic emission spectroscopy, an amount of the coating layer is 0.4% by mass or more relative to a total amount of the fluorescent material particles and the coating layer being 100% by mass:
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