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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Abnormal thermal quenching near-infrared fluorescent ceramic as well as preparation method and application thereof
The invention discloses an abnormal thermal quenching near-infrared fluorescent ceramic and a preparation method and application thereof, the chemical formula of the fluorescent ceramic is (Lu < 0.34 + z > Y < 0.66-y-z > Scy) 3 (Sc < 0.85-x > Al < 0.15 > Crx) 2Al < 3 > O < 12 >, x is more than or equal to 0.0005 and less than or equal to 0.02, x: y is equal to 1: (5-10), and x: z is equal to 1: (10-20). Y is the mole percent of Sc < 3 + > in dodecahedron sites, and x is the mole percent of Cr ions in octahedron Sc < 3 + > sites. And z is the molar percentage of Lu < 3 + > metered and regulated in the dodecahedron. An acrylamide gel injection molding method is combined with a high-temperature solid-phase reaction to realize molding and sintering of a ceramic biscuit. Luminescence center ions in the ceramic are in a + 3 valence state under the influence of a matrix microenvironment regulator (calcium carbonate, magnesium oxide, zirconium oxide, silicon dioxide and hafnium oxide). The excitation peak of the ceramic ranges from 430 nm to 460 nm, the full width at half maximum ranges from 90 nm to 130 nm, the luminous intensity at the temperature of 150 DEG C is 105%-165% of the room temperature, and the luminous intensity at the temperature of 200 DEG C is 130%-200% of the room temperature. Under the excitation of an excitation source with the wavelength of 430 nm to 460 nm, the emission wave band is 650 nm to 900 nm. The preparation process of the ceramic is simple, and the prepared abnormal thermal quenching near-infrared fluorescent ceramic is applied to the field of high-power near-infrared imaging and detection.
本发明公开一种反常热猝灭近红外荧光陶瓷及其制备方法与应用，该荧光陶瓷化学式为：(Lu0.34+zY0.66‑y‑zScy)3(Sc0.85‑xAl0.15Crx)2Al3O12，0.0005≤x≤0.02，x:y=1:(5‑10)，x:z=1:(10‑20)。y为Sc3+占据十二面体格位的摩尔百分数，x为Cr离子占据八面体Sc3+格位的摩尔百分数。z为十二面体中Lu3+计量调控的摩尔百分数。采用丙烯酰胺凝胶注模成型方法结合高温固相反应实现陶瓷素坯成型与烧结。本发明的陶瓷中发光中心离子在基质微环境调节剂(碳酸钙、氧化镁和氧化锆、二氧化硅、二氧化铪)的影响下呈现+3价态。陶瓷的激发峰在430nm‑460nm之间，半高宽在90nm‑130nm之间，在150 oC下发光强度是室温的105%‑165%，在200 oC下发光强度是室温的130%‑200%。在波长430 nm‑460 nm的激发源激发下，发射波段在650 nm‑900nm。陶瓷制备工艺简单，所制备的反常热猝灭近红外荧光陶瓷用于高功率近红外成像与检测领域。
Abnormal thermal quenching near-infrared fluorescent ceramic as well as preparation method and application thereof
The invention discloses an abnormal thermal quenching near-infrared fluorescent ceramic and a preparation method and application thereof, the chemical formula of the fluorescent ceramic is (Lu < 0.34 + z > Y < 0.66-y-z > Scy) 3 (Sc < 0.85-x > Al < 0.15 > Crx) 2Al < 3 > O < 12 >, x is more than or equal to 0.0005 and less than or equal to 0.02, x: y is equal to 1: (5-10), and x: z is equal to 1: (10-20). Y is the mole percent of Sc < 3 + > in dodecahedron sites, and x is the mole percent of Cr ions in octahedron Sc < 3 + > sites. And z is the molar percentage of Lu < 3 + > metered and regulated in the dodecahedron. An acrylamide gel injection molding method is combined with a high-temperature solid-phase reaction to realize molding and sintering of a ceramic biscuit. Luminescence center ions in the ceramic are in a + 3 valence state under the influence of a matrix microenvironment regulator (calcium carbonate, magnesium oxide, zirconium oxide, silicon dioxide and hafnium oxide). The excitation peak of the ceramic ranges from 430 nm to 460 nm, the full width at half maximum ranges from 90 nm to 130 nm, the luminous intensity at the temperature of 150 DEG C is 105%-165% of the room temperature, and the luminous intensity at the temperature of 200 DEG C is 130%-200% of the room temperature. Under the excitation of an excitation source with the wavelength of 430 nm to 460 nm, the emission wave band is 650 nm to 900 nm. The preparation process of the ceramic is simple, and the prepared abnormal thermal quenching near-infrared fluorescent ceramic is applied to the field of high-power near-infrared imaging and detection.
本发明公开一种反常热猝灭近红外荧光陶瓷及其制备方法与应用，该荧光陶瓷化学式为：(Lu0.34+zY0.66‑y‑zScy)3(Sc0.85‑xAl0.15Crx)2Al3O12，0.0005≤x≤0.02，x:y=1:(5‑10)，x:z=1:(10‑20)。y为Sc3+占据十二面体格位的摩尔百分数，x为Cr离子占据八面体Sc3+格位的摩尔百分数。z为十二面体中Lu3+计量调控的摩尔百分数。采用丙烯酰胺凝胶注模成型方法结合高温固相反应实现陶瓷素坯成型与烧结。本发明的陶瓷中发光中心离子在基质微环境调节剂(碳酸钙、氧化镁和氧化锆、二氧化硅、二氧化铪)的影响下呈现+3价态。陶瓷的激发峰在430nm‑460nm之间，半高宽在90nm‑130nm之间，在150 oC下发光强度是室温的105%‑165%，在200 oC下发光强度是室温的130%‑200%。在波长430 nm‑460 nm的激发源激发下，发射波段在650 nm‑900nm。陶瓷制备工艺简单，所制备的反常热猝灭近红外荧光陶瓷用于高功率近红外成像与检测领域。
Abnormal thermal quenching near-infrared fluorescent ceramic as well as preparation method and application thereof
一种反常热猝灭近红外荧光陶瓷及其制备方法与应用
MA YUELONG (Autor:in) / LEE SEONG-CHAN (Autor:in) / SHAO CHENYANG (Autor:in) / ZHAO YIMO (Autor:in) / WU LAN (Autor:in) / ZHANG BOQIANG (Autor:in)
01.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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