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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-color-rendering-index low-quenching nitrogen oxide fluorescent ceramic for white-light LED (light-emitting diode) and preparation method thereof
The invention discloses a high-color-rendering-index low-quenching nitrogen oxide fluorescent ceramic for a white-light LED and a preparation method of the high-color-rendering-index low-quenching nitrogen oxide fluorescent ceramic, the chemical formula of the fluorescent ceramic is (Lu0.98-xLax) 3 (Al1-ySiy) 5 (O1-yNy) 12: 0.06 Ce, in the formula, x is the molar percentage of La < 3 + > doped with Lu < 3 + >, y is the molar percentage of Si < 4 + > doped with Al < 3 + > or the molar percentage of N < 3-> doped with O < 2->, x is greater than or equal to 0.001 and less than or equal to 0.12, and y is greater than or equal to 0.001 and less than or equal to 0.001 and less than or equal to 0.02. The preparation method comprises the following steps: weighing the raw material powder, adding the sintering aid and the dispersing agent to prepare mixed slurry, drying, sieving, calcining, and carrying out dry pressing molding and cold isostatic pressing molding to obtain a biscuit; and finally, sequentially carrying out high-temperature sintering and double-sided polishing to obtain the fluorescent ceramic. The method is simple in process, energy consumption and cost can be reduced, and the obtained fluorescent ceramic has the advantages of high color rendering index, low concentration quenching and low thermal quenching.
本发明公开了一种白光LED用高显指低猝灭氮氧化物荧光陶瓷及其制备方法，该荧光陶瓷的化学式通式为：(Lu0.98‑xLax)3(Al1‑ySiy)5(O1‑yNy)12:0.06Ce，式中，x为La3+掺杂Lu3+的摩尔百分数，y为Si4+掺杂Al3+的摩尔百分数或N3‑掺杂O2‑位的摩尔百分数，0.001≤x≤0.12，0.001≤y0.02。制备方法：先称量原料粉体，再加入烧结助剂、分散剂配制混合浆料，再经过干燥、过筛、煅烧后进行干压成型和冷等静压成型得到素坯；最后依次进行高温烧结、双面抛光即得荧光陶瓷。该方法工艺简单，可减少能耗和降低成本，所得到的荧光陶瓷可具有高显色指数、低浓度猝灭和低热猝灭的优点。
High-color-rendering-index low-quenching nitrogen oxide fluorescent ceramic for white-light LED (light-emitting diode) and preparation method thereof
The invention discloses a high-color-rendering-index low-quenching nitrogen oxide fluorescent ceramic for a white-light LED and a preparation method of the high-color-rendering-index low-quenching nitrogen oxide fluorescent ceramic, the chemical formula of the fluorescent ceramic is (Lu0.98-xLax) 3 (Al1-ySiy) 5 (O1-yNy) 12: 0.06 Ce, in the formula, x is the molar percentage of La < 3 + > doped with Lu < 3 + >, y is the molar percentage of Si < 4 + > doped with Al < 3 + > or the molar percentage of N < 3-> doped with O < 2->, x is greater than or equal to 0.001 and less than or equal to 0.12, and y is greater than or equal to 0.001 and less than or equal to 0.001 and less than or equal to 0.02. The preparation method comprises the following steps: weighing the raw material powder, adding the sintering aid and the dispersing agent to prepare mixed slurry, drying, sieving, calcining, and carrying out dry pressing molding and cold isostatic pressing molding to obtain a biscuit; and finally, sequentially carrying out high-temperature sintering and double-sided polishing to obtain the fluorescent ceramic. The method is simple in process, energy consumption and cost can be reduced, and the obtained fluorescent ceramic has the advantages of high color rendering index, low concentration quenching and low thermal quenching.
本发明公开了一种白光LED用高显指低猝灭氮氧化物荧光陶瓷及其制备方法，该荧光陶瓷的化学式通式为：(Lu0.98‑xLax)3(Al1‑ySiy)5(O1‑yNy)12:0.06Ce，式中，x为La3+掺杂Lu3+的摩尔百分数，y为Si4+掺杂Al3+的摩尔百分数或N3‑掺杂O2‑位的摩尔百分数，0.001≤x≤0.12，0.001≤y0.02。制备方法：先称量原料粉体，再加入烧结助剂、分散剂配制混合浆料，再经过干燥、过筛、煅烧后进行干压成型和冷等静压成型得到素坯；最后依次进行高温烧结、双面抛光即得荧光陶瓷。该方法工艺简单，可减少能耗和降低成本，所得到的荧光陶瓷可具有高显色指数、低浓度猝灭和低热猝灭的优点。
High-color-rendering-index low-quenching nitrogen oxide fluorescent ceramic for white-light LED (light-emitting diode) and preparation method thereof
一种白光LED用高显指低猝灭氮氧化物荧光陶瓷及其制备方法
ZHANG LE (Autor:in) / WEI CONG (Autor:in) / ZHOU TIANYUAN (Autor:in) / KANG JIAN (Autor:in) / SHAO CEN (Autor:in) / TIAN WEN (Autor:in) / SANG PENGFEI (Autor:in) / ZHOU CHUNMING (Autor:in) / LI YANBIN (Autor:in) / CHEN HAO (Autor:in)
08.03.2024
Patent
Elektronische Ressource
Chinesisch
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