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Tungsten bronze-based photochromic ceramic material and preparation method thereof
The invention relates to the technical field of up-conversion luminescent materials, and provides a tungsten bronze-based photochromic ceramic material. According to the invention, Ba4La1. 88Er0. 02Yb0. 1Ti4Nb6O30 with a tetragonal tungsten bronze structure is selected as a base material, so that the near-infrared absorbing material has the characteristic of good near-infrared absorbing property; a proper amount of molybdenum ions with variable valence properties are introduced into the material, the property that the valence states of the molybdenum ions are variable is utilized to be matched with the effect of a material matrix with a tetragonal tungsten bronze structure, a strong photochromic effect can be obtained within a few seconds under irradiation of light of 405 nm, and erasing can be achieved through heating and color changing within a few seconds. Thus, the material exhibits a rapid color change effect. In addition, along with the rapid color changing effect, the up-conversion luminescence intensity of the material also shows the characteristic of rapid change under the alternating action of 405nm light irradiation and heating.
本发明涉及上转换发光材料技术领域，提供了一种钨青铜基光致变色陶瓷材料。本发明选用具有四方钨青铜结构的Ba4La1.88Er0.02Yb0.1Ti4Nb6O30作为基体材料，其具有近红外吸收特性好的特点；通过在材料中引入适量具有可变价性质的钼离子，利用钼离子自身价态可变的性质配合具有四方钨青铜结构材料基体的作用，在405nm光辐照下，数秒内便可获得较强的光致变色效应，并且通过加热，数秒内变色便可得到擦除。因此，材料呈现快速变色效应。另外，伴随以上快速变色效应，材料的上转换发光强度在405nm光辐照与加热交替作用下也展现出快速变化的特点。
Tungsten bronze-based photochromic ceramic material and preparation method thereof
The invention relates to the technical field of up-conversion luminescent materials, and provides a tungsten bronze-based photochromic ceramic material. According to the invention, Ba4La1. 88Er0. 02Yb0. 1Ti4Nb6O30 with a tetragonal tungsten bronze structure is selected as a base material, so that the near-infrared absorbing material has the characteristic of good near-infrared absorbing property; a proper amount of molybdenum ions with variable valence properties are introduced into the material, the property that the valence states of the molybdenum ions are variable is utilized to be matched with the effect of a material matrix with a tetragonal tungsten bronze structure, a strong photochromic effect can be obtained within a few seconds under irradiation of light of 405 nm, and erasing can be achieved through heating and color changing within a few seconds. Thus, the material exhibits a rapid color change effect. In addition, along with the rapid color changing effect, the up-conversion luminescence intensity of the material also shows the characteristic of rapid change under the alternating action of 405nm light irradiation and heating.
本发明涉及上转换发光材料技术领域，提供了一种钨青铜基光致变色陶瓷材料。本发明选用具有四方钨青铜结构的Ba4La1.88Er0.02Yb0.1Ti4Nb6O30作为基体材料，其具有近红外吸收特性好的特点；通过在材料中引入适量具有可变价性质的钼离子，利用钼离子自身价态可变的性质配合具有四方钨青铜结构材料基体的作用，在405nm光辐照下，数秒内便可获得较强的光致变色效应，并且通过加热，数秒内变色便可得到擦除。因此，材料呈现快速变色效应。另外，伴随以上快速变色效应，材料的上转换发光强度在405nm光辐照与加热交替作用下也展现出快速变化的特点。
Tungsten bronze-based photochromic ceramic material and preparation method thereof
一种钨青铜基光致变色陶瓷材料及其制备方法
WEI TONG (Autor:in) / SHI YONGCHAO (Autor:in) / YAN JIAWEI (Autor:in) / WANG XIANGYU (Autor:in)
29.07.2022
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
Photochromic ceramic, preparation method thereof and optical device
| Europäisches Patentamt | 2022