Korea Institute of Science and Technology

Min Jae Ko

Hong Gon Kim

Hae Jung Son

Doh-Kwon Lee

Bong Soo Kim

Jin Young Kim

Hyo Sang Lee

Jai Kyeong Kim

Sungmin Park

Jin Sung Kim

Seung Sang Hwang

Soon Man Hong

Kyung Youl Baek

Chong Min Koo

In-Hwan Oh

Jae Ik Kim

Hyun Ji Kim

Yun Jae Lee

Young Sang Cho

Hyeon Yeol Jeon

Ju Hee Kim

Jea Woong Jo

Jin Ah Lee

Hwa Young Jin

Jin Joo

Inyoung Jeong

Hee Suk Jung

Jae Hoon Yun

Kang-Bong Lee

Minwoo Jung

Disclosed is a method for adsorbing a dye for a dye-sensitized solar cell. The method includes: coating a paste including metal oxide nanoparticles on the upper surface of a titanium oxide thin film and calcining the coated paste to form a porous film; adding an additive to a sensitizing dye solution to promote the adsorption of the dye; and dipping the porous film in the sensitizing dye solution to adsorb the sensitizing dye onto the surface of the porous film. The sensitizing dye solution is a dispersion of the sensitizing dye in an organic solvent. Also disclosed are a working electrode prepared using the sensitizing dye solution and a dye-sensitized solar cell including the working electrode. The addition of the additive shortens the time of dye adsorption. Despite the shortened adsorption time, the dye does not undergo desorption in the long term as well as in the short term, ensuring long-term stability of the solar cell.

Sensitizing dye solution, working electrode for dye-sensitized solar cell prepared using the sensitizing dye solution and dye-sensitized solar cell including the working electrode

Disclosed is an electron transport layer for a flexible perovskite solar cell. The electron transport layer includes transition metal-doped titanium dioxide particles. The titanium dioxide particles are densely packed in the electron transport layer. The electron transport layer is transparent. The use of the electron transport layer enables the fabrication of a flexible perovskite solar cell with high power conversion efficiency. Also disclosed is a flexible perovskite solar cell employing the electron transport layer.

Electron transport layer for flexible perovskite solar cell and flexible perovskite solar cell including the same

An organic solar cell is provided. The organic solar cell includes a photoactive layer in which a low molecular weight conjugated compound as a first organic semiconductor material is mixed with an appropriate amount of a second organic semiconductor material. The first organic semiconductor material includes both electron donors and electron acceptors. The presence of the electron donors and the electron acceptors in the first organic semiconductor material improves the morphology of the photoactive layer, leading to high efficiency of the organic solar cell.

Organic solar cell and method for fabricating the same

The present disclosure relates to a method for producing a synthesis gas using a solid acid, more particularly to a method for producing a synthesis gas using a solid acid capable of remarkably decreasing production of environmental pollutants such as carbon dioxide, which includes producing hydrogen by reacting a solid acid with water and producing a synthesis gas by reacting the produced hydrogen with a carbon compound.

Method for producing synthetic gas by using solid acid

The present disclosure provides an organic semiconductor compound, which has superior charge mobility, low band gap, wide light absorption area and adequate molecular energy level. The conductive organic semiconductor compound of the present disclosure can be used as a material for various organic optoelectric devices such as an organic photodiode (OPD), an organic light-emitting diode (OLED), an organic thin-film transistor (OTFT), an organic solar cell, etc. In addition, it can be prepared into a thin film via a solution process, can be advantageously used to fabricate large-area devices and can reduce the cost of device fabrication.

Conductive organic semiconductor compound, method for preparing the same and organic thin-film transistor including the same

The present invention provides a method for producing polythiophene star copolymer capable of being self-doped by an external stimulus, which includes the steps of: forming a polythiophene macroinitiator made by introducing a living radical polymerizable functional group into an end of polythiophene or a derivative thereof; forming through living radical polymerization a polymer macroinitiator for providing by an external stimulus at least a dopant selected from the group consisting of sulfonic acid radical, carboxylic acid radical and phosphoric acid radical; and polymerizing the polythiophene macroinitiator added with the polymer macroinitiator and at least one kind of divinyl monomer to produce the polythiophene star copolymer. The polythiophene star copolymer capable of being self-doped by an external stimulus according to the present invention is a self-doped material to stably increase conductivity, and can be used as a material for a conductive film.

Polythiophene star copolymer capable of being self-doped by external stimulus, a method for producing the same, a conductive thin film using the same, and a method for producing the conductive thin film

The present disclosure relates to a novel polymer compound and a method for preparing the same. More particularly, the present disclosure relates to a novel conductive low band gap electron donor polymer compound having high photon absorptivity and improved hole mobility, a method for preparing the same and an organic photovoltaic cell containing the same. Since the conductive polymer compound as a low band gap electron donor exhibits high photon absorptivity and superior hole mobility, it can be usefully used as a material for an organic optoelectronic device such as an organic photodiode (OPD), an organic thin-film transistor (OTFT), an organic light-emitting diode (OLED), an organic photovoltaic cell, etc. as well as in the development of a n-type material.

Low band gap polymer compound, synthesis of thereof, and organic photovoltaic cell containing the same

Disclose is a triphenylamine derivative with a low band gap. The triphenylamine derivative is represented by Formula (I): 

Triphenylamine derivatives and organic photovoltaic cells including the derivatives

Growing community of inventors

Seoul, South Korea

Min Jae Ko