公开(公告)号：US10144868B2

公开(公告)日：2018-12-04

申请号：US14551602

申请日：2014-11-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Hye Cho ,  Seung Yong Lee ,  Khan Sovann ,  Jong Ku Park ,  Sun Jin Kim ,  Ho Seong Jang

IPC: C09K11/77 ,  C09K11/08 ,  H01L33/50 ,  C09K11/55 ,  C09K11/60 ,  C01F17/00 ,  H01L31/055

Abstract: The present invention relates to a novel method for preparing a water-insoluble metal hydroxide, and a use thereof. The water-insoluble metal hydroxide of the present invention is conveniently and efficiently prepared s through the high-temperature heat treatment step two times and the washing step, and thus contains a small amount of an alkali metal and has a high crystallinity and a phase purity. The water-insoluble metal hydroxide of the present invention or metal oxide therefrom exhibits an absorption wavelength at a low wavelength range (for example, 490 nm or less) and a light emitting wavelength at a high wavelength range (for example, from 500 nm or more to less than 1,100 nm). Accordingly, the water-insoluble metal hydroxide of the present invention may be efficiently used in various applications such as a fire retardant, an antacid, an adsorbent and so forth, and may also be doped with another metal ion to be utilized as a raw material for fabricating a catalyst, a fluorescent material, an electrode material, a secondary battery material and the like.

公开(公告)号：US11680204B2

公开(公告)日：2023-06-20

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 ,  B82Y40/00 ,  B82Y20/00 ,  B82Y30/00

CPC classification number: C09K11/7773 ,  F24S23/11 ,  H01L31/0445 ,  H01L31/055 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00

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：US10265682B2

公开(公告)日：2019-04-23

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: B01J23/00 ,  B01J23/34 ,  B01J37/00 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  B01J23/46 ,  C01B15/029 ,  B01J23/50 ,  B01J37/06 ,  B01J37/16 ,  B01J35/00 ,  C01B15/01

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

公开(公告)号：US10196563B2

公开(公告)日：2019-02-05

申请号：US15178889

申请日：2016-06-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Joon Soo Han ,  So Hye Cho ,  Bok Ryul Yoo ,  Seung Yong Lee

IPC: C09K11/02 ,  C09K11/56

Abstract: There is provided a phosphor powder which includes a wavelength converting material and a silica-based inorganic substance surrounding the wavelength converting material and represented by the following Formula 1, wherein a content of a hydrosilyl group (Si—H) is greater than or equal to 10 ppm by weight, based on the total weight of the silica-based inorganic substance: wherein X represents oxygen (O) or an amine group (NH), Y represents hydrogen (H), a hydroxyl group (OH), an amino group (NH2), or an alkyl group containing heteroelements, and the heteroelements include at least one selected from the group consisting of phosphorus (P), nitrogen (N), sulfur (S), oxygen (O), and a halogen element.

公开(公告)号：US10167424B2

公开(公告)日：2019-01-01

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 ,  A61K49/00 ,  C09K11/02 ,  G01N21/64 ,  G07D7/12 ,  H01L31/055 ,  B82Y5/00

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：US11520091B2

公开(公告)日：2022-12-06

申请号：US16684016

申请日：2019-11-14

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ji Young Byun ,  So Hye Cho ,  Seung Yong Lee ,  Kwang-Deok Choi ,  In Uk Baek ,  Yun Hee Kim

IPC: C23C14/00 ,  G02B5/28 ,  C23C14/08 ,  C23C14/06 ,  B32B15/00 ,  B32B3/10 ,  B32B3/12

Abstract: Provided is a coloring pattern structure. The coloring pattern structure includes: a substrate; a light-transmitting dielectric layer formed on at least one surface of the substrate; and a composite material layer disposed on an upper surface of the light-transmitting dielectric layer and formed of a metal and a first material not having a thermodynamic solid solubility in the metal, wherein the metal included in the composite material layer has a pattern coated only on portions of the upper surface of the light-transmitting dielectric layer, and the first material is coated on the remaining area where the metal is not coated.

公开(公告)号：US10821421B2

公开(公告)日：2020-11-03

申请号：US16215521

申请日：2018-12-10

Applicant: Korea Institute of Science and Technology

Inventor： Seung Yong Lee ,  Sang Soo Han ,  Hyo Bin Nam ,  Byung Chul Yeo ,  So Hye Cho ,  Ho Seong Jang

IPC: B01J23/89 ,  C01B15/029 ,  B01J35/00 ,  B01J35/02 ,  B01J37/16

Abstract: A catalyst and a catalyst composition, a method for preparing thereof, and a method for synthesizing of hydrogen peroxide using them are provided. The catalyst and the catalyst composition contains: an alloy of two elements, wherein the elements are Pt (Platinum) and Ni (Nickel). The present disclosure enables (a) replacing a high-priced palladium (Pd) catalyst with a new catalyst, (b) providing a high-active catalyst which catalyzes the direct synthesis reaction of the hydrogen peroxide.

公开(公告)号：US20190176133A1

公开(公告)日：2019-06-13

申请号：US16215521

申请日：2018-12-10

Applicant: Korea Institute of Science and Technology

Inventor： Seung Yong Lee ,  Sang Soo Han ,  Hyo Bin Nam ,  Byung Chul Yeo ,  So Hye Cho ,  Ho Seong Jang

IPC: B01J23/89 ,  B01J35/02 ,  C01B15/029

CPC classification number: B01J23/892 ,  B01J35/0013 ,  B01J35/002 ,  B01J35/02 ,  B01J37/16 ,  C01B15/029

Abstract: A catalyst and a catalyst composition, a method for preparing thereof, and a method for synthesizing of hydrogen peroxide using them are provided. The catalyst and the catalyst composition contains: an alloy of two elements, wherein the elements are Pt (Platinum) and Ni (Nickel). The present disclosure enables (a) replacing a high-priced palladium (Pd) catalyst with a new catalyst, (b) providing a high-active catalyst which catalyzes the direct synthesis reaction of the hydrogen peroxide.

公开(公告)号：US10159758B2

公开(公告)日：2018-12-25

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: A61K9/00 ,  A61K49/00 ,  C09K11/77 ,  G01N21/64 ,  B82Y5/00 ,  H01G9/20

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：US11254866B2

公开(公告)日：2022-02-22

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 ,  B42D25/36 ,  B82Y40/00 ,  B82Y30/00 ,  B82Y5/00

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.)