公开(公告)号：US20230103150A1

公开(公告)日：2023-03-30

申请号：US17056412

申请日：2020-05-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Gumin KANG ,  Hyungduk KO ,  Ho Seong JANG ,  Cho-long JUNG

IPC: H02S40/22

Abstract: The present disclosure relates to a transparent luminescent solar concentrator (LSC). The LSC according to an embodiment of the present disclosure includes a polymer resin panel uniformly doped with phosphors. Accordingly, it is possible to greatly improve the transmittance and optical haze compared to the existing LSC manufactured by physically mixing or coating phosphors on the front side of the panel. In addition, it is possible to greatly improve the light collection efficiency of the LSC through the arrangement structure of the solar cells embedded in the polymer resin panel. The polymer resin panel according to an embodiment may be manufactured with flexibility or rigidity according to the purpose of use, and thus can be widely applied to curved structures, for example, building windows, automobile glasses and greenhouse roofs.

公开(公告)号：US20210332293A1

公开(公告)日：2021-10-28

申请号：US17121766

申请日：2020-12-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong JANG ,  Hyungduk KO ,  Gumin KANG ,  So Hye CHO ,  Seung Yong LEE ,  A Ra HONG

IPC: C09K11/77 ,  H01L31/055 ,  F24S23/00 ,  H01L31/0445

Abstract: The present disclosure relates to down-shifting nanophosphors, a method for preparing the same, and a luminescent solar concentrator (LSC) using the same. The down-shifting nanophosphors according to an embodiment of the present disclosure include a core including NaYF4 nanocrystals doped with neodymium (Nd) and ytterbium (Yb), and further include a neodymium (Nd)-doped crystalline shell surrounding the core, or further include a NaYF4 crystalline shell surrounding the crystalline shell. Therefore, the down-shifting nanophosphors efficiently absorb near infrared rays with a wavelength range of 700-900 nm and efficiently emit near infrared rays with a wavelength range of 950-1050 nm. In addition, the down-shifting nanophosphors according to an embodiment of the present disclosure has a size of 60 nm or less, and thus can be applied to manufacture transparent LSC films with ease and can realize transparent solar cell modules having high near infrared ray shifting efficiency.

公开(公告)号：US20130287703A1

公开(公告)日：2013-10-31

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: C09K11/77

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-pq-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反，因此具体描述 被省略。 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。

公开(公告)号：US20200079994A1

公开(公告)日：2020-03-12

申请号：US16293960

申请日：2019-03-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong JANG ,  Joon Soo HAN ,  A Ra HONG ,  So Hye CHO ,  Seung Yong LEE ,  Hyung Duk KO

IPC: C09K11/06 ,  C09K11/77

Abstract: Provided is a dye-sensitized upconversion nanophosphor including a core, a first shell surrounding at least part of the core, and an organic dye bonded to a surface of the nanophosphor to have an absorption band ranging from 650 nm to 850 nm and be excited in a near-infrared region to emit visible light.

公开(公告)号：US20180303959A1

公开(公告)日：2018-10-25

申请号：US15871062

申请日：2018-01-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong JANG ,  So Hye CHO ,  Seung Yong LEE ,  A Ra HONG

IPC: A61K49/00 ,  C09K11/77 ,  H01G9/20 ,  G01N21/64 ,  B82Y5/00

CPC classification number: A61K49/0093 ,  A61K49/0019 ,  B82Y5/00 ,  C01P2004/64 ,  C09K11/7766 ,  G01N21/6428 ,  H01G9/2059

Abstract: Provided is a nanophosphor having a core/double shell structure, the nanophosphor including a upconversion core including a Yb3+, Ho3+, and Ce3+− co-doped fluoride-based nanophosphor represented by Formula 1; a first shell surrounding at least a portion of the upconversion core, and comprising a Nd3+ and Yb3+ co-doped fluoride-based crystalline composition represented by Formula 2; and a second shell surrounding at least a portion of the first shell, and having paramagnetic properties represented by Formula 3.

公开(公告)号：US20180016497A1

公开(公告)日：2018-01-18

申请号：US15364431

申请日：2016-11-30

Applicant: Korea Institute of Science and Technology

Inventor： Ho Seong JANG ,  Joon Soo HAN ,  So Hye CHO ,  Seung Yong LEE

IPC: C09K11/77 ,  C09K11/02 ,  A61K49/00 ,  H01L31/055 ,  G01N21/64

CPC classification number: C09K11/7773 ,  A61K49/0019 ,  A61K49/0065 ,  B82Y5/00 ,  B82Y30/00 ,  C09K11/025 ,  C09K11/7705 ,  C09K11/7791 ,  G01N21/6428 ,  G01N2021/6439 ,  G07D7/1205 ,  H01L31/055 ,  Y02E10/52

Abstract: Provided are a nanophosphor and a silica composite including the nanophosphor. The nanophosphor has a core/first shell/second shell structure or a core/first shell/second shell/third shell structure, wherein the core includes a Yb3+-doped fluoride-based nanoparticle, the first shell is an up-conversion shell including a Yb3+ and Tm3+-codoped fluoride-based crystalline composition, the second shell is a fluoride-based emission shell, and the third shell is an outermost crystalline shell.

公开(公告)号：US20240117247A1

公开(公告)日：2024-04-11

申请号：US18469891

申请日：2023-09-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong JANG ,  Jihoon KYHM ,  Ja Yeon LEE

IPC: C09K11/77 ,  C09K11/06

CPC classification number: C09K11/7705 ,  C09K11/06 ,  C09K2211/1433

Abstract: An upconversion multicolor light-emitting polymer composite implements red, green, and blue colors at wavelengths in each specific region by mixing: an upconversion nanophosphor emitting light in red and blue colors at wavelengths in each specific region by absorbing the infrared light; an upconversion nanophosphor emitting light in green and blue colors at wavelengths in each specific region by absorbing the infrared light; and a polydimethylsiloxane (PDMS) polymer. Accordingly, a volumetric display with excellent color reproducibility may be realized with a simple manufacturing process.

公开(公告)号：US20200308484A1

公开(公告)日：2020-10-01

申请号：US16683265

申请日：2019-11-14

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong JANG ,  A Ra HONG ,  So Hye CHO ,  Seung Yong LEE

IPC: C09K11/77 ,  A61K49/18

Abstract: Provided is a fluoride nanophosphor using, as cores, luminescent nanoparticles expressed by Chemical Formula 1. LiEr1-x-yLyF4:Tm3+x  [Chemical Formula 1] (In Chemical Formula 1, x is a real number satisfying 0≤x≤0.3, y is a real number satisfying 0≤y≤0.8 and is selected within a range satisfying 0≤x+y≤0.9, and L is any one selected from the group consisting of yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), ytterbium (Yb), lutetium (Lu), and a combination thereof.)

公开(公告)号：US20190023044A1

公开(公告)日：2019-01-24

申请号：US15698913

申请日：2017-09-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyungduk KO ,  Kisun PARK ,  Ho Seong JANG ,  IL KI HAN

IPC: B41M3/14 ,  B42D25/328 ,  G09F3/00

CPC classification number: B41M3/144 ,  B42D25/328 ,  B42D25/373 ,  B42D25/382 ,  B42D25/42 ,  B42D25/47 ,  G07D7/005 ,  G07D7/12 ,  G09F3/0292 ,  G09F3/0294 ,  G09F3/0297 ,  G09F2003/0247 ,  G09F2003/0277

Abstract: Disclosed is a structure for preventing counterfeit, falsification or reuse, including a metal layer, a photoconversion pattern layer including a plurality of photoconverting nanoparticles formed on the metal layer, a metal pattern layer placed on the metal layer and the photoconversion pattern layer, and an adhesive film placed on the metal pattern layer. Accordingly, the structure for preventing counterfeit, falsification or reuse according to the present disclosure allows a pattern indicating a genuine product to be easily identified with an eye through infrared light irradiation, and is fundamentally impossible to re-assemble after deformation of the structure caused by disassembly of a packaging container, thereby preventing counterfeit, falsification or reuse.

公开(公告)号：US20180193821A1

公开(公告)日：2018-07-12

申请号：US15726841

申请日：2017-10-06

Applicant: Korea Institute of Science and Technology

Inventor： Seung Yong LEE ,  Sang Soo HAN ,  Hyo Bin NAM ,  Kwan Young LEE ,  So Hye CHO ,  Ho Seong JANG

IPC: B01J23/46 ,  B01J23/50 ,  C01B15/029

CPC classification number: B01J23/464 ,  B01J23/50 ,  B01J35/0013 ,  B01J37/06 ,  B01J37/08 ,  B01J37/16 ,  C01B15/01 ,  C01B15/029

Abstract: Provided is a catalyst for synthesizing hydrogen peroxide as represented by the following Chemical Formula 1: RhxAg(1-x),  [Chemical Formula 1] where 0