公开(公告)号：US20170133534A1

公开(公告)日：2017-05-11

申请号：US15015595

申请日：2016-02-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyungduk KO ,  Il Ki HAN ,  Yong Hyeon KIM ,  Minsik PARK

IPC: H01L31/055 ,  H01L31/054

CPC classification number: H01L31/055 ,  H01L31/02168 ,  H01L31/0547 ,  Y02E10/50 ,  Y02E10/52

Abstract: By virtue of a structure in which patterns have protuberances with a cone-shaped structure and quantum dots are embedded in the protuberances, an optical film of the present disclosure prevents the reflection of light, and converts light in the near ultraviolet wavelength region to a range of wavelengths a solar cell can absorb the light, thereby significantly improving the efficiency of a device.Also, because of being highly transparent and having adhesive properties itself, the optical film according to the present disclosure can be easily adhered to a device such as solar cells without any additional preparation process.Also, in applications to a solar cell, the optical film according to the present disclosure can significantly improve sunlight absorption efficiency while not greatly increasing the thickness of the solar cell.

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：US20160097236A1

公开(公告)日：2016-04-07

申请号：US14842029

申请日：2015-09-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Doo-Hyun KO ,  Byoung-Kwon MIN ,  Hyun-Keun KWON ,  Kyu-Tae LEE ,  Hyungduk KO ,  Ilki HAN

IPC: E06B9/24 ,  H01L31/054 ,  G02F1/00 ,  G02F1/13 ,  G02F1/1335

CPC classification number: E06B9/24 ,  E06B2009/2476 ,  G02F1/0045 ,  H01G9/2068 ,  Y02E10/52 ,  Y02E10/542

Abstract: Provided is a photoreactive smart window. The photoreactive smart window includes a liquid crystal layer of which light transmittance changes according to the presence of ultraviolet (UV) light and which is combined with a solar cell. The photoreactive smart window is in a transparent condition in the daytime when UV light is generated from the sun, and accordingly sunlight passing therethrough is converted into electric energy. Also, the photoreactive smart window is in an opaque condition in the evening and at night when no UV light is generated from the sun, and accordingly no curtains are necessary on the windows.

Abstract translation: 提供了一个光反应智能窗口。 光反应式智能窗包括根据紫外线（UV）光的存在而使光透射率变化并与太阳能电池组合的液晶层。 光反应式智能窗在白天由于太阳产生紫外线而处于透明状态，因此通过其中的太阳能被转换为电能。 此外，光反应式智能窗在晚上和夜间处于不透明状态，当没有太阳产生UV光时，因此在窗户上不需要窗帘。

公开(公告)号：US20230037132A1

公开(公告)日：2023-02-02

申请号：US17864124

申请日：2022-07-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong JANG ,  Gumin KANG ,  Hyungduk KO ,  Seung Yong LEE ,  Kwang Rok MUN

IPC: C09K11/77 ,  C09K11/02 ,  G01N21/64

Abstract: Provided are a core-multishell upconversion nanophosphor capable of being excited by 800±20 nm, 980±20 nm, and 1530±20 nm near-infrared (NIR) light to emit various colors including green, red, blue, and combinations thereof, and a transparent polymer composite including the upconversion nanophosphor. A crystalline shell may be formed between the red, green, and blue emission layers to enable emission of pure red, green, or blue light, and be further formed on an outermost surface to provide a color-tunable and high-brightness upconversion nanophosphor.

公开(公告)号：US20180053869A1

公开(公告)日：2018-02-22

申请号：US15260742

申请日：2016-09-09

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyungduk KO ,  Gi Yong LEE ,  S. Joon KWON ,  Il Ki HAN ,  Kinam JUNG

IPC: H01L31/054 ,  H01L31/0468 ,  H02S20/26

CPC classification number: H01L31/0547 ,  H01L31/0468 ,  H01L31/054 ,  H02S20/22 ,  H02S20/26 ,  H02S40/20 ,  Y02B10/10 ,  Y02E10/52

Abstract: Provided are a solar cell panel and a window having the same. The solar cell panel includes: a light diffusion layer to which light is incident and at which the light is scattered; a light concentration layer laminated at a lower portion of the light diffusion layer and having a plurality of patterns spaced apart from each other and having a cavity shape convex toward the light diffusion layer at a surface thereof opposite to the light diffusion layer so that light passing through the light diffusion layer is reflected and concentrated to a side portion thereof; and a solar cell array provided at a side surface of the light concentration layer and having a plurality of solar cells arranged along the side surface of the light concentration layer and electrically connected to each other.

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：US20190333779A1

公开(公告)日：2019-10-31

申请号：US16270594

申请日：2019-02-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Gumin KANG ,  Il Ki HAN ,  S. Joon KWON ,  Young-Hwan KIM ,  Hyungduk KO ,  Chun Keun KIM

IPC: H01L21/321 ,  H01L21/66 ,  H01L21/306 ,  H01L21/3105

Abstract: A method for surface planarization of an object using a light source of a specific wavelength according to an embodiment includes: providing an object in a main chamber; injecting an etching gas into the main chamber; inputting the light source of a specific wavelength onto a surface of the object; and controlling a temperature of the object. According to the method, it is possible to minimize the side effects such as scratches or contamination of the sample that occur in a conventional chemical-mechanical planarization process. In addition, it is possible to allow precise planarization in nanometers (nm) and simultaneously perform planarization to a side surface of a device as well as a large-sized surface, thereby reducing cost and time required for the planarization process. Moreover, since the surface roughness and the electrical conductivity are improved, it is possible to increase the efficiency and output of the LED device.

公开(公告)号：US20230018835A1

公开(公告)日：2023-01-19

申请号：US17858391

申请日：2022-07-06

Applicant: Korea Institute of Science and Technology

Inventor： Ji Young BYUN ,  MD ABDUR RAHMAN ,  So Hye CHO ,  Seung Yong LEE ,  Hyungduk KO ,  Sung Lim CHOI ,  Dong Kyu KIM ,  Kwang-deok CHOI ,  Inuk BAEK ,  Yun Hee KIM

IPC: G02B5/28

Abstract: Provided is a high-durability coloring metal member. The high-durability coloring metal member includes a metal substrate, a dielectric layer provided on the metal substrate, and an oxynitride compound layer provided on the dielectric layer. The metal member is capable of expressing vivid and various colors with a color protection layer applied on the surface of the metal member.

公开(公告)号：US20190067505A1

公开(公告)日：2019-02-28

申请号：US15792478

申请日：2017-10-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyungduk KO ,  Il Ki Han ,  Ho Seong Jang

IPC: H01L31/054 ,  H01L31/043 ,  H01L31/05

Abstract: A solar cell panel includes a light concentration layer on which sunlight is incident and concentrated; a cladding layer stacked on bottom of the light concentration layer; a light conversion/light guide layer including a light guide layer stacked on bottom of the light concentration layer to guide visible light to a side surface and a light conversion member to convert ultraviolet or infrared light to visible light; and a solar cell array placed along a side surface of the light conversion/light guide layer and having multiple solar cells electrically connected. The solar cell panel and a window comprising the same can increase efficiency of a window-type solar module by converting and concentrating light in a wavelength range not contributing to solar cell efficiency.

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.