摘要:
The present disclosure relates to graphite oxide, graphene oxide, and reduced graphene oxide and, more specifically, to graphite oxide, graphene oxide, and reduced graphene oxide in which graphene oxide includes 25 to 45 at% of oxygen (O) and is effectively exfoliated from graphite oxide, and can embody excellent powder conductivity after reduction.
摘要:
Provided are a conductive material pre-dispersed slurry for a secondary battery electrode, which has improved dispersibility of the conductive material, a preparation method thereof, an electrode manufactured by applying the conductive material pre-dispersed slurry, and a secondary battery having the electrode. The disclosed conductive material pre-dispersed slurry for a secondary battery electrode includes: a conductive material; a dispersant for dispersing the conductive material; and a solvent mixed with the conductive material and the dispersant, wherein the dispersant includes a cellulose-based compound and a vinyl-based or acrylic compound, and the cellulose-based compound and the vinyl-based or acrylic compound in the dispersant have a weight ratio of about 25:1 to 1:25.
摘要:
A monolithic-type module of a perovskite solar cell includes: a plurality of unit cells including a substrate, a first electrode layer formed on the substrate and having conductivity, a perovskite optical absorption layer formed on the upper surface of the first electrode layer, and made of a porous metal oxide to which an optical absorber having a perovskite structure is attached, and a hole transport layer formed on the upper surface of the perovskite optical absorption layer; and a second electrode layer formed on the hole transport layer and formed of a conductive material, wherein an interconnection partition electrode of a predetermined height is formed between individual unit cells such that the plurality of unit cells are connected in series by interconnection wiring for electrically connecting the second electrode layer of each unit cell with the first electrode layer of a neighboring unit cell by the interconnection partition electrode.
摘要:
The present invention relates to a novel ruthenium-based dye and a method for preparing the same, and more specifically, to a bipyridine-based ruthenium dye which prevents an interaction with I 2 of an electrolyte by introducing a hydrophobic group combined with oxygen into a ligand site; exhibits an improved photoelectric conversion efficiency and long-term stability, thereby greatly improving efficiency and lifespan of a solar cell; and is synthesized by a relatively simple method, thereby reducing its manufacturing costs. The bipyridine-based ruthenium dye of the present invention is used as a dye in a dye-sensitized solar cell (DSSC) and thus has higher efficiency and better long-term stability than existing dyes, thereby significantly improving efficiency of the solar cell.
摘要:
The present invention relates to a coating composition comprising a bis-type silane compound, and particularly relates to a coating composition which has high storage stability and can form a highly transparent and high-strength coating film, a preparation method thereof and a coating film formed using the same.
摘要:
The invention relates to a dye-sensitized solar cell and a module using the same and more particularly, to a dye-sensitized solar cell in which a photoelectrode substrate and a catalyst electrode substrate are spaced apart from each other by a separating space and coupled together by an encapsulating material and the separating space is filled with an electrolyte, characterized in that the electrolyte contains optical beads, and a module using the same. Thus, light passing through the photoelectrode substrate is refracted or reflected by the optical beads, and irradiated onto the photoelectrode substrate, thereby to improve the efficiency of the solar cell. Particularly, the efficiency of a dye-sensitized solar cell for a BIPV system is more effectively improved, said solar cell not having a separate scattering layer for maintaining the translucency thereof. If the optical beads are colored, solar cells with a variety of colors can be obtained, which achieves an aesthetic enhancement for a building adopting the BIPV system.
摘要:
Disclosed herein are a chemical mechanical polishing slurry composition for chemical mechanical planarization of metal layers, which comprises a non-ionized, heat-activated nano-catalyst, and a polishing method using the same. The polishing slurry composition comprises: a non-ionized, heat-activated nano-catalyst which releases electrons and holes by energy generated in a chemical mechanical polishing process; an abrasive; and an oxidizing agent. The non-ionized, heat-activated nano-catalyst and the abrasive are different from each other, and the non-ionized, heat-activated nano-catalyst is preferably a semiconductor material which releases electrons and holes at a temperature of 10 to 100 °C in an aqueous solution state, more preferably a transition metal silicide selected from the group consisting of CrSi, MnSi, CoSi, ferrosilicon (FeSi), mixtures thereof, and most preferably, a semiconductor material such as nano ferrosilicon. The content of the content of the non-ionized, heat-activated nano-catalyst is 0.00001 to 0.1 wt% based on the total weight of the slurry composition.
摘要:
The invention is directed to a paste composition used for forming an electrode or wiring, wherein it comprises a) a conductive powder; b) a cellulose binder; c) an acrylate monomer; d) a radical polymerization initiator; and e) a solvent, and it is curable at a low temperature when compared to the prior paste compositions and it has excellent hardness, electrical resistivity and stability so that it can be usefully used for forming an electrode or wiring for a solar cell, RFID (Radio Frequency Identification) or PCB (Printed Circuit Board).