Hanwha Chemical Corporation

Korea Institute of Science and Technology

Yonsei University

Won Il Son

You-Jin Sim

Eui Duk Kim

Seok Heon Oh

Dong Jo Kim

Jae-Min Hong

Mi-kyoung Kim

Joo Ho Moon

Choong-Hoon Paik

Sun Jin Park

Eui-Duk Kim

Kyoo Hee Woo

You Jin Sim

The present invention relates to a glass frit, a conductive paste composition comprising the glass frit, and a solar cell fabricated using the conductive paste composition. The glass frit of the present invention comprises SiO, PbO, and at least one selected from the group consisting of AlO, ZrO, ZnO, and LiO. Further, the conductive paste composition of the present invention comprises a silver (Ag) powder, a lithium titanium oxide, a glass frit, a binder, and a solvent. The conductive paste composition of the present invention can be used to provide a solar cell having low contact resistance to enhance photoelectric efficiency.

Glass frit, and conductive paste composition and solar cell comprising the same

The present invention provides a method of manufacturing a phosphorus-doped nickel nanoparticle. The method includes the steps of: mixing a nickel solution including a nickel compound and a solvent, a seed particle, and a phosphorus-containing reductant in an arbitrary order to prepare a mixed solution; and adjusting pH of the mixed solution such that the mixed solution becomes acidic. According to the method, a phosphorus-doped nickel nanoparticle that is suitable to be applied to solar cell electrodes requiring low contact resistance can be manufactured.

Phosphorus-doped nickel nanoparticle and method of manufacturing the same

The present invention relates to a method for manufacturing a conductive metal thin film, including: preparing a conductive metal coating solution by adding carboxylic acid to a dispersion including a conductive metal particle having a core/shell structure; coating the conductive metal coating solution on a top portion of a substrate, heat-treating it, and removing an metal oxide layer of the surface of the conductive metal particle having the core/shell structure; and forming a thin film of the conductive metal particle from which the metal oxide layer is removed.

Method for manufacturing conductive metal thin film using carboxylic acid

Provided is a method for preparing an aqueous dispersion of metal nanoparticles having superior dispersibility and being sinterable at low temperature by modifying the surface of metal nanoparticles having hydrophobic groups with hydrophilic groups. Specifically, by treating the surface hydrophobic groups of the metal nanoparticles with a surface modification solution containing a surfactant and a wetting-dispersing agent, the treatment throughput can be improved about 10-fold and the particles can be monodispersed without agglomeration. Further, by using an antioxidant and a ligand removal agent in the solution, denaturation and oxidation of the particles can be prevented and the high-boiling-point hydrophobic ligands can be eliminated effectively. The hydrophilically treated metal nanoparticles may be dispersed in an aqueous-based solvent to prepare a metal ink sinterable at low temperature.

Method for preparing water-soluble nanoparticles and their dispersions

There is provided a high efficient gas separation membrane of two or more layers, which comprises a separating layer of 3-dimensional nanostructure and a supporting layer, wherein the 3-dimensional nanostructure can maximize a surface area per unit permeation area.

Efficient 3-D nanostructured gas separation membranes

Growing community of inventors

Seoul, South Korea

Won Il Son