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High-color-rendering-index nitrogen oxide fluorescent ceramic for solid-state illumination and preparation method thereof
The invention discloses a high-color-rendering-index nitrogen oxide fluorescent ceramic for solid-state illumination and a preparation method thereof, the general chemical formula of the fluorescent ceramic is (Ca1-xCex) 3Sc2Si3O12-6yN4y, x is the molar percentage of Ce < 3 + > replacing Ca < 2 + >, x is more than or equal to 0.0001 and less than or equal to 0.005, y is the molar percentage of N < 3-> replacing O < 2->, and y is more than or equal to 0.01 and less than or equal to 0.05; the material is prepared by a solid-phase sintering method. The Si3N4 doped fluorescent ceramic can replace O < 2-> in a garnet matrix, the Si3N4 doped fluorescent ceramic and Ce < 3 + > form a new dodecahedron, a new luminescence center appears at 570nm, high-brightness white light emission is realized, the color rendering index is 85-92, and the Si3N4 doped fluorescent ceramic is simple in preparation process and easy to industrially apply.
本发明公开了一种固态照明用高显指氮氧化物荧光陶瓷及其制备方法，该荧光陶瓷的化学通式为：(Ca1‑xCex)3Sc2Si3O12‑6yN4y，其中x为Ce3+取代Ca2+位的摩尔百分比，0.0001≤x≤0.005，y为N3‑取代O2‑位的摩尔百分比，0.01≤y≤0.05；采用固相烧结法制备得到。本发明采用Si3N4掺杂荧光陶瓷可以将石榴石基质中的O2‑替换，与Ce3+组成新的十二面体，在570nm处出现新的发光中心，实现高亮白光发射，其显色指数为85～92，且制备工艺简单，易工业化应用。
High-color-rendering-index nitrogen oxide fluorescent ceramic for solid-state illumination and preparation method thereof
The invention discloses a high-color-rendering-index nitrogen oxide fluorescent ceramic for solid-state illumination and a preparation method thereof, the general chemical formula of the fluorescent ceramic is (Ca1-xCex) 3Sc2Si3O12-6yN4y, x is the molar percentage of Ce < 3 + > replacing Ca < 2 + >, x is more than or equal to 0.0001 and less than or equal to 0.005, y is the molar percentage of N < 3-> replacing O < 2->, and y is more than or equal to 0.01 and less than or equal to 0.05; the material is prepared by a solid-phase sintering method. The Si3N4 doped fluorescent ceramic can replace O < 2-> in a garnet matrix, the Si3N4 doped fluorescent ceramic and Ce < 3 + > form a new dodecahedron, a new luminescence center appears at 570nm, high-brightness white light emission is realized, the color rendering index is 85-92, and the Si3N4 doped fluorescent ceramic is simple in preparation process and easy to industrially apply.
本发明公开了一种固态照明用高显指氮氧化物荧光陶瓷及其制备方法，该荧光陶瓷的化学通式为：(Ca1‑xCex)3Sc2Si3O12‑6yN4y，其中x为Ce3+取代Ca2+位的摩尔百分比，0.0001≤x≤0.005，y为N3‑取代O2‑位的摩尔百分比，0.01≤y≤0.05；采用固相烧结法制备得到。本发明采用Si3N4掺杂荧光陶瓷可以将石榴石基质中的O2‑替换，与Ce3+组成新的十二面体，在570nm处出现新的发光中心，实现高亮白光发射，其显色指数为85～92，且制备工艺简单，易工业化应用。
High-color-rendering-index nitrogen oxide fluorescent ceramic for solid-state illumination and preparation method thereof
一种固态照明用高显指氮氧化物荧光陶瓷及其制备方法
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2020
| European Patent Office | 2024
| European Patent Office | 2023
| European Patent Office | 2024