公开(公告)号：US09422474B2

公开(公告)日：2016-08-23

申请号：US13869453

申请日：2013-04-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong Jang ,  Kyoungja Woo ,  Kipil Lim

IPC: A61K9/14 ,  C09K11/77 ,  C09K11/02 ,  B82Y40/00 ,  B82Y20/00

CPC classification number: C09K11/7773 ,  B82Y20/00 ,  B82Y40/00 ,  C09K11/02 ,  Y10S977/773 ,  Y10S977/892 ,  Y10S977/896 ,  Y10S977/93 ,  Y10S977/948 ,  Y10S977/95 ,  Y10T428/2982

Abstract: The present invention relates to a nanophosphor and a synthesis method thereof, and provides a nanophosphor comprising a first compound of Formula 1, wherein the first compound is fluoride-based one which is co-doped with Ce3+ and Tb3+. NaGd1−p−q−rMrF4:Ce3+p,Tb3+q  (1) In the Formula 1, descriptions on the p, q, r and M are overlapped with what was described in the detailed description of the present invention, so their concrete description are omitted. The nanophosphor has good light emission intensity and magnetic property as well as up-conversion and/or down-conversion property able to emit visible light after excitation by infrared and/or ultraviolet rays, so can be applied to a contrast agent and a counterfeit prevention code.

Abstract translation: 纳米荧光体及其合成方法技术领域本发明涉及纳米荧光体及其合成方法，其特征在于，提供包含第一化合物的纳米荧光体，其中第一化合物为与Ce 3+和Tb 3+共掺杂的基于氟化物的纳米荧光体。 NaGd1-p-q-rMrF4：Ce3 + p，Tb3 + q（1）在式1中，关于p，q，r和M的描述与本发明的详细描述中所描述的相互重叠， 具体描述省略。 纳米荧光体具有良好的发光强度和磁特性以及能够通过红外线和/或紫外线激发后能够发出可见光的上转换和/或下变换特性，因此可以应用于造影剂和防伪 码。