公开(公告)号：US09657225B2

公开(公告)日：2017-05-23

申请号：US14639385

申请日：2015-03-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong Jang ,  Su Yeon Kim ,  Sun Jin Kim ,  So-Hye Cho ,  Seung Yong Lee

IPC: C09K11/77 ,  C09K11/02 ,  G01N21/64 ,  H01L31/0232 ,  B82Y20/00 ,  B82Y40/00

CPC classification number: C09K11/7791 ,  B82Y20/00 ,  B82Y40/00 ,  C09K11/025 ,  C09K11/7773 ,  H01L31/02322 ,  H01L31/055 ,  Y02E10/52 ,  Y10S977/773 ,  Y10S977/779 ,  Y10S977/95

Abstract: The present invention relates to a nanophosphor which may be used as a wavelength conversion part of a solar cell, a fluorescent contrast agent, and a light emitting part of a display device, and a synthesis method thereof. The nanophosphor of the present invention is excited by ultraviolet light to exhibit strong green light emission, and has multicolor light emission characteristics capable of controlling a color such as green, yellowish green, yellow, and orange color by only adjusting the amount of a doping agent.

公开(公告)号：US09796923B2

公开(公告)日：2017-10-24

申请号：US14250769

申请日：2014-04-11

Applicant: Korea Institute of Science and Technology

Inventor： Ho Seong Jang ,  Kyoungja Woo ,  Su Yeon Kim

IPC: A61K9/00 ,  C09K11/77 ,  C09K11/02 ,  A61K49/00 ,  A61K49/18

CPC classification number: C09K11/7773 ,  A61K49/0067 ,  A61K49/1827 ,  C09K11/025 ,  C09K11/7791

Abstract: A nanophosphor in accordance with one exemplary embodiment of the present disclosure includes a fluoride-based nanoparticle co-doped with Ce3+ and one selected from a group consisting of Tb3+, Eu3+ and a combination thereof. The nanophosphor may be excited by a single wavelength of ultraviolet rays to emit various colors of green, yellow, orange, red and the like, and exhibit high photostability without photoblinking. The nanophosphor may be utilized as a bio imaging contrast agent, a transparent display device, an anti-counterfeit code and the like.