Korea Institute of Science and Technology

Im Co., Ltd.

Hyungduk Ko

Il Ki Han

Ho Seong Jang

Seung Yong Lee

So Hye Cho

Gumin Kang

Dong Kyu Kim

Joon Soo Han

Bok Ryul Yoo

Young-Hwan Kim

Ji Young Byun

Yun Hee Kim

Chun Keun Kim

Kwan Il Lee

Kwang-Deok Choi

A Ra Hong

Joon-Suh Park

Ji Hun Park

Doo-hyun Ko

Min Ji Park

S Joon Kwon

Md Abdur Rahman

Inuk Baek

Cho-long Jung

Yong Hyeon Kim

Sung Lim Choi

Gi Yong Lee

Minsik Park

Kisun Park

Doo Hyun Ko

Ki-sun Park

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.

High-durability coloring metal member and method of producing the same

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.

Luminescent solal concentrator with phosphor-doped polymer resin

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 NaYFnanocrystals doped with neodymium (Nd) and ytterbium (Yb), and further include a neodymium (Nd)-doped crystalline shell surrounding the core, or further include a NaYFcrystalline 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.

Down-shifting nanophosphors, method for preparing the same, and luminescent solar concentrator using the same

A transparent planar heating film includes metal nanoparticles that are disposed on at least a portion of a transparent adhesive film; and a transparent electrode that is completely covered by the transparent adhesive film and has a conductive surface that is laminated to and in direct contact with the metal nanoparticles via the transparent adhesive film. The heating temperature of the transparent planar heating film is a maximum of at least two times higher at the same power consumption than that of conventional planar heating films. Both the transparent adhesive film and the transparent electrode may be flexible so that the transparent planar heating film is flexible. In the transparent planar heating film, the metal nanoparticles may be bonded to desired locations on the conductive surface of the transparent electrode enabling selective heating.

Transparent planar heating film including transferred metal nanoparticles

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.

Method and apparatus for surface planarization of object using light source of specific wavelength and reactive gas

The present invention relates to a solar cell having a wavelength converting layer formed of a polysilazane and a manufacturing method thereof to allow for low temperature sintering, to protect a wavelength converter from oxidation, degradation, and whitening, and thereby improve efficiency of the solar cell. The present invention provides for the solar cell including the wavelength converting layer which is formed by applying a coating solution containing a solvent, a polysilazane, and a wavelength converter onto a cell and an outer surface or inside of the cell, and then curing, and a manufacturing method of.

Solar cell having wavelength converting layer and manufacturing method thereof

A plasmonic structure having an identifier pattern indicating a genuine product for preventing counterfeiting, falsification or reuse, includes a metal layer; a photoconversion pattern layer including a plurality of photoconverting nanoparticles disposed in a pattern on and in direct contact with the metal layer; a metal pattern layer including a plurality of metal particles disposed in a pattern on and in direct contact with the photoconversion pattern layer; and an adhesive film disposed on the metal pattern layer. An identifier pattern indicating a genuine product is easily identified even by visual inspection after irradiation with infrared light irradiation. The plasmonic structure is fundamentally impossible to re-assemble after deformation of the plasmonic structure caused by disassembly of a product or packaging container, thereby preventing counterfeiting, falsification or reuse.

Plasmonic structure having an identifier pattern indicating a genuine product and method of use for preventing counterfeiting, falsification or reuse of the product

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 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.

Optical film with quantum dots embedded in nano patterns, a preparation method thereof and solar cell comprising the same

Provided is a wavelength converting structure for near-infrared rays and a solar cell using the same. More particularly, provided is a novel wavelength converting structure for near-infrared rays using gap plasmon characteristics and up-conversion nanoparticles. When applying the wavelength converting structure for near-infrared rays to a solar cell, it is possible to convert the light within a wavelength range of near-infrared rays into electric energy so that the photoconversion efficiency may be improved.

Wavelength converting structure for near-infrared rays and solar cell comprising the same

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Seoul, South Korea

Hyungduk Ko