Ultra-narrow-band purple light fluorescent powder as well as preparation method and application thereof
The chemical general formula of the ultra-narrow-band purple light fluorescent powder is A2M (PO3) 4: zEu < 2 + >, A is one or more of Na and K, and M is one or more of Ca, Sr and Ba; the ultra-narrow band means that the full width at half maximum of the emission spectrum of the fluorescent po...
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| creator | LEI ZHENYU YU JIAYING HUANG SAIFANG ZHANG HUILIN YU QI DONG YUHE |
| description | The chemical general formula of the ultra-narrow-band purple light fluorescent powder is A2M (PO3) 4: zEu < 2 + >, A is one or more of Na and K, and M is one or more of Ca, Sr and Ba; the ultra-narrow band means that the full width at half maximum of the emission spectrum of the fluorescent powder is lower than 25nm. The invention also discloses a preparation method of the ultra-narrow-band purple light fluorescent powder, which comprises the following steps: carrying out ball milling on raw materials, slowly pre-calcining, carrying out multi-stage heat preservation, finally heating to 200-350 DEG C, cooling and grinding; and finally, synthesizing at 550-700 DEG C in a reducing atmosphere, cooling and grinding. The invention further discloses application of the ultra-narrow-band purple light fluorescent powder in display devices and temperature sensing. The obtained fluorescent powder emits ultra-narrow-band purple light under excitation of near ultraviolet light, and is high in color purity, high in luminous |
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The invention also discloses a preparation method of the ultra-narrow-band purple light fluorescent powder, which comprises the following steps: carrying out ball milling on raw materials, slowly pre-calcining, carrying out multi-stage heat preservation, finally heating to 200-350 DEG C, cooling and grinding; and finally, synthesizing at 550-700 DEG C in a reducing atmosphere, cooling and grinding. The invention further discloses application of the ultra-narrow-band purple light fluorescent powder in display devices and temperature sensing. 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The invention also discloses a preparation method of the ultra-narrow-band purple light fluorescent powder, which comprises the following steps: carrying out ball milling on raw materials, slowly pre-calcining, carrying out multi-stage heat preservation, finally heating to 200-350 DEG C, cooling and grinding; and finally, synthesizing at 550-700 DEG C in a reducing atmosphere, cooling and grinding. The invention further discloses application of the ultra-narrow-band purple light fluorescent powder in display devices and temperature sensing. 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The invention also discloses a preparation method of the ultra-narrow-band purple light fluorescent powder, which comprises the following steps: carrying out ball milling on raw materials, slowly pre-calcining, carrying out multi-stage heat preservation, finally heating to 200-350 DEG C, cooling and grinding; and finally, synthesizing at 550-700 DEG C in a reducing atmosphere, cooling and grinding. The invention further discloses application of the ultra-narrow-band purple light fluorescent powder in display devices and temperature sensing. The obtained fluorescent powder emits ultra-narrow-band purple light under excitation of near ultraviolet light, and is high in color purity, high in luminous</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SEMICONDUCTOR DEVICES |
| title | Ultra-narrow-band purple light fluorescent powder as well as preparation method and application thereof |
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