Phosphor and use thereof
AssigneeMitsui Mining & Smelting Co., Ltd.
InventorsMasaaki Inamura, Haruka Shimizu, Takayoshi Mori, Masanori Sato, Jun-ichi Itoh
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Abstract
Proposed is a phosphor capable of effectively inhibiting the occurrence of adverse influence of a sulfur-based gas while improving water resistance of the phosphor and effectively inhibiting the corrosion of a metallic member. A phosphor is proposed, which includes particles or a layer provided on the surface of a sulfur-containing phosphor, which contains sulfur in a host material, and containing a crystalline metal borate containing an IIA-Group element, boron, and oxygen.
Claims14
A phosphor comprising a configuration in which particles containing a metal borate having crystallinity, also referred to as “crystalline metal borate”, that contains an IIA-Group element, boron, and oxygen, are on the surface of a sulfur-containing phosphor containing sulfur in a host material,
- wherein a diffraction peak derived from the crystalline metal borate in a diffraction angle-diffraction intensity chart according to a general principle of powder X-ray diffraction analysis JIS K 0131-1996 is recognized in the crystalline metal borate, and
- wherein the crystalline metal borate is contained in an amount of 0.005 parts by mass or more and 1 part by mass or less with respect to 1 part by mass of the sulfur containing phosphor,
- wherein the crystalline metal borate is a compound represented by BaxByOz, wherein x is 1 to 3, y is 2 to 4, and z is 4 to 7.
Dependencies are inferred from the claim text.