University-Industry Cooperation Group of Kyung Hee University

Korea University Research and Business Foundation

Korea Research Institute of Chemical Technology

Samsung Electronics Co., Ltd.

Lg Chem, Ltd

Hyundai Motor Company

Korea Advanced Institute of Science and Technology

Sang Hyuk Im

Jin Hyuck Heo

Sang Il Seok

Jun Hong Noh

Jin Soo Kim

Woo Sik Kim

O Ok Park

Young Jun Hong

Jonghee Han

Yeongrae Chang

Sung Pil Yoon

Sang Hak Kim

Sol Kim

Joon Koo Kang

Mi Yeon Song

Woo-Sik Kim

Tae Seok Seo

Cheol Hee Park

Jinsoo Kim

Soon Hwa Jung

Duck Jong Suh

Eun Yeong Lee

Jae Pil Koo

Moon Jung Eo

Su Hee Lee

Han Sol Cho

Kyungki Hong

Soo Kyoung Lee

Won Bae Byun

Sung Su Kim

Eun Sang Yoo

Jeong Ah Chang

Su Ha

Han-Seul Choi

Seok Hwan Lee

Yong Hui Lee

Hye Ji Han

Jin Teak Hwang

Jae Hui Rhee

Hi Jung Kim

Oun Suk Sin

Kyung Min Im

Sang Ll Seok

The perovskite photoelectric device includes a first electrode; a hole transport layer formed on the first electrode; a perovskite layer formed on the hole transport layer and made of a first perovskite compound; an electron transport layer formed on the perovskite layer; a second electrode formed on the electron transport layer; and a graded wall formed on the hole transport layer and the perovskite layer and made of a second perovskite compound, wherein the first perovskite compound and the second perovskite compound are represented by Formula 1 below, and the graded wall suppresses movement of anions included in the perovskite layer:  [Formula 1]

Perovskite photoelectric device and manufacturing method thereof

Proposed is a preparation method for single-layered MXenes capable of exfoliating a single layer of MXenes from multi-layered MXenes with a high yield. One embodiment of the present disclosure provides a preparation method for single-layer MXenes, the method includes exfoliating a single layer of MXenes from multi-layered Mxenes with a Couette-Taylor reactor (CT reactor), inducing a regular flow.

Method of preparing single-layered MXenes, single-layered MXenes prepared thereof, thin film for shielding electromagnetic wave, and electrode

Disclosed is a self-powered perovskite X-ray detector. The self-powered perovskite X-ray detector according to an embodiment of the present invention has a shape wherein a scintillator converting incident X-rays into visible light is combined with a perovskite photodetector, wherein the scintillator and the perovskite light absorption layer include a perovskite compound represented by Formula 1 below:&#x2003;&#x2003;[Formula 1]

Self-powered perovskite X-ray detector

Provided are a graphene-based compound, a preparation method thereof, a single-phase composition for preparing a graphene-based compound, and a graphene quantum dot. Specifically, provided are a graphene-based compound prepared from a single-phase composition for preparing a graphene-based compound including hydrocarbyl amine, a hydroxyl group-containing carbon source, and an acid, a preparation method thereof, a single-phase composition for preparing a graphene-based compound, and a graphene quantum dot.

Graphene-based compound, preparation method thereof, and single-phase composition for preparing graphene-based compound and graphene quantum dot

Provided is a solar cell including: a first electrode; a composite layer positioned on the first electrode and including a light absorber impregnated thereinto; a light absorption structure positioned on the composite layer and composed of a light absorber; a hole conductive layer positioned on the light absorption structure; and a second electrode positioned on the hole conductive layer.

Solar cell having light-absorbing structure

Provided is a method for preparing metal/molybdenum oxide nanoparticles, the method including: preparing polycrystalline molybdenum oxide particles; and obtaining metal-doped molybdenum oxide nanoparticles by dissolving the polycrystalline molybdenum oxide particles and a metal precursor in a first solvent, and then performing a solvothermal reaction.

Method for preparing metal/molybdenum oxide nanoparticles

Provided is a method for preparing molybdenum oxide nanoparticles, including (a) preparing a precursor solution by dissolving a molybdenum salt in a first polar solvent, (b) generating an aerosol by applying ultrasonic waves to the precursor solution, and spraying the aerosol to a pre-heated reactor using a carrier gas, (c) obtaining molybdenum oxide micron-sized particles by pyrolyzing the aerosol, and (d) obtaining molybdenum oxide nanoparticles by dispersing the molybdenum oxide micron-sized particles in a second polar solvent and performing a solvothermal reduction reaction.

Method for preparing molybdenum oxide nanoparticles

A method for preparing a perovskite solar cell by a non-deposition method is provided. Particularly, the method includes preparing a first substrate by forming a hole transport layer on a light absorbing layer in a semi-dried state and pressurizing and drying a second substrate including an opposing electrode to the first substrate.

Method for preparing a bonded type perovskite solar cell

Provided are a method of preparing solid electrolyte particles of Chemical Formula 1 including preparing a precursor solution by mixing a titanium precursor, a lanthanum precursor, and a lithium precursor in an aqueous or organic solvent, and heat treating the precursor solution, solid electrolyte particles prepared thereby, and a lithium secondary battery including the solid electrolyte particles:LiLaTiO(0&#x3c;x&#x3c;0.16).&#x2003;&#x2003;&#x3c;Chemical Formula 1&#x3e; According to a method of preparing solid electrolyte particles according to an embodiment of the present invention, solid electrolyte particles may be easily prepared by heat treating at low temperature for a short period of time.

Solid electrolyte particles, preparation method thereof, and lithium secondary battery comprising the same

Provided is a method for manufacturing a solar cell including: a) forming an electron transport layer on a first electrode; b) forming a light absorber by applying a light absorber solution as a solution for forming a light absorber containing an organic-metal halide having a perovskite structure, the light absorber solution containing an organic halide and a metal halide dissolved therein so as to have a non-stoichiometric ratio based on the organic-metal halide; c) forming a hole conduction layer by applying and drying a hole transport solution in which an organic hole transport material is dissolved; and d) forming a second electrode, which is a counter electrode of the first electrode, on the hole conduction layer.

Method for manufacturing high-efficiency inorganic-organic hybrid solar cell

Provided is a method for manufacturing a significantly high efficient solar cell having a novel structure and superior stability, and which can be mass-produced from an inexpensive material from an inexpensive material for enabling the easy commercial availability thereof. More particularly, the method of the present invention comprises the following step: (a) depositing slurry containing metal oxide particles and heat-treating the slurry to form a porous electron transporting layer; (b) forming inorganic semiconductors on surfaces of the metal oxide particles for the porous electron-transporting layer; and (c) impregnating the porous electron-transporting layer having the inorganic semiconductor formed thereon with a solution containing an organic photovoltaic material so as to form a hole transporting layer.

Method for manufacturing a nanostructured inorganic/organic heterojunction solar cell

An exemplary embodiment of the present invention relates to an anti-glare coating composition and anti-glare coating film having excellent abrasion resistance and contamination resistance. The anti-glare coating composition according to the exemplary embodiment of the present invention comprises a) a binder resin; b) a fluorine-based UV curable functional group-containing compound; c) a photoinitiator; d) a surface curable photoinitiator; and e) a particulate of which a surface has an uneven pattern. In the case where a film is formed by using the anti-glare coating composition according to the exemplary embodiment of the present invention, it is possible to provide both abrasion resistance and contamination resistance by a single coating method, to maintain characteristics of abrasion resistance and contamination resistance when the film is rubbed, and to decrease and easily remove contamination by an oil component, such as a fingerprint mark.

Anti-glare coating composition and anti-glare coating film having superior abrasion resistance and contamination resistance

A call processing method and a mobile terminal are provided. The mobile terminal includes a Radio Frequency (RF) receiver including a first input terminal connected to a first incoming signal line and a second input terminal connected to a second incoming signal line, a first RF switch arranged on the first incoming signal line for switching the first incoming line between the first input terminal and an inter-switch line, a second RF switch arranged on the second incoming signal line for switching the second input terminal between the second incoming signal line and the inter-switch line, and a controller for controlling, in a data call session, the first RF switch and the second RF switch to establish a connection of the first incoming signal line and the second incoming signal line during a first period and during a second period.

Call processing method and apparatus for mobile terminal in data call mode

A method for fabricating a preform for a plastic optical fiber, having continuous refractive index profile in a radial direction, comprising a firs step of introducing a mixture consisting of at least two substances, each having a different density and refractive index relative to each other, to a cylindrical reactor and polymerizing the mixture in a centrifugal field generated by rotating the reactor; a second step of compensating for a void formed by volume shrinkage from the polymerization in the first step with a mixture consisting of at least two substances, each having a different density and refractive index relative to each other, and polymerizing the mixture in a centrifugal field generated by rotating the reactor, and a third step of repeating the second step until there is no void after polymerization

Method for fabricating a preform for a plastic optical fiber and a preform for a plastic optical fiber fabricated thereby

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Yongin-si, South Korea

Sang Hyuk Im