Abstract: A composition for solar cell electrodes and a solar cell electrode fabricated using the composition, the composition including a conductive powder; a glass frit; and an organic vehicle, wherein the glass frit has a reaction index (RI) of about 0.5 to about 1.0, as calculated according to Equation 1: Reaction index (RI)=Ib/Ia??<Equation 1> wherein, in Equation 1, Ia denotes a maximum peak intensity measured on a specimen at 20.5° to 20.7° (2?) by XRD analysis, the specimen being obtained by mixing the glass frit with Si3N4 powder in a weight ratio of 1:1 to prepare pellets, followed by heat-treatment at 800° C. for 10 minutes, and Ib denotes a maximum peak intensity measured on the specimen at 20.75° to 20.95° (2?) by XRD analysis.

Abstract: A solar cell includes a silicon substrate and an electrode formed on the silicon substrate. The silicon substrate has at least 5 raised portions having a cross-sectional height (h) of 50 nm or more per 5 ?m length. The electrode is formed from a composition for solar cell electrodes including a conductive powder, an organic vehicle, and a glass frit having a glass transition temperature (Tg) of about 150° C. to about 450° C.

Abstract: A solar cell includes a silicon substrate and an electrode on the silicon substrate. The silicon substrate includes at least 5 raised portions having a cross-sectional height (h) of about 50 nm or more per 5 ?m length. The electrode is formed from a composition for solar cell electrodes having a water contact angle of about 15° to about 60°.

Abstract: A composition for p-type solar cell electrodes, an electrode fabricated using the same, and a solar cell fabricated using the same. The composition for p-type solar cell electrodes includes: (A) silver powder; (B) a glass frit; and (C) an organic vehicle, wherein the glass frit includes about 50 ppm to about 10,000 ppm of aluminum (Al).

Abstract: The present invention relates to a novel gluconate repressor variant, a microorganism containing the same, and a method for producing L-lysine using the same.

Abstract: A composition for solar cell electrodes includes silver powder; a silver alloy (AgX) that includes silver (Ag) and a metal (X), the silver alloy having a eutectic point of about 150° C. to about 900° C.; a glass frit; and an organic vehicle.

Abstract: The present invention relates to a composition for forming solar cell electrodes which includes a conductive powder, a glass frit and an organic vehicle, and has a tackiness of about 60% to about 90% represented by Expression 1.

Abstract: A method of manufacturing a finger electrode for a solar cell including printing a conductive paste on one surface of a substrate using a print mask having an aperture ratio of about 65% or more, and baking the printed conductive paste. The conductive paste includes a conductive powder, a glass frit, and an organic vehicle. The organic vehicle includes a solvent having a vapor pressure of about 0.1 Pa to about 500 Pa at room temperature and a flash point of about 90° C. to about 150° C.

Abstract: A composition for solar cell electrodes includes silver powder, a glass frit, and an organic vehicle. The glass frit includes a first glass frit and a second glass frit. The first glass frit includes tellurium (Te) and silver (Ag) in a molar ratio (Te:Ag) of about 75:1 to about 1:25. The second glass frit includes a lead-tellurium-oxide (Pb—Te—O)-based glass frit or a bismuth-tellurium-oxide (Bi—Te—O)-based glass frit and is free from silver (Ag).

Abstract: The present invention relates to a composition for forming a solar cell electrode, comprising: silver (Ag) powder; a glass frit comprising silver (Ag) and tellurium (Te) elements; and an organic vehicle, wherein the glass frit has a mole ratio of 1:01 to 1:25 of Ag to Te. The solar cell electrode produced from the composition has excellent fill factor and conversion efficiency as contact resistance (Rc) and series resistance (Rs) are minimized.

Abstract: The present invention relates to a novel gluconate repressor variant, a microorganism containing the same, and a method for producing L-lysine using the same.

Abstract: The present invention relates to a modified polynucleotide encoding aspartate kinase (EC:2.7.2.4; hereinafter, referred to as LysC), transketolase (EC:2.2.1.1; hereinafter, referred to as Tkt) or pyruvate carboxylase (EC:6.4.1.1; hereinafter, referred to as Pyc), in which the initiation codon is substituted with ATG, a vector including the same, a microorganism transformed with the vector, and a method for producing L-lysine using the same.

Abstract: A composition for solar cell electrodes and electrodes fabricated using the same. The composition includes a silver (Ag) powder; a glass frit containing about 0.1 mole % to about 50 mole % of elemental silver; and an organic vehicle, wherein the elemental silver derives from a silver halide (Ag—X). The composition introduces a glass frit including a silver halide to enhance contact efficiency between electrodes and a silicon wafer, and solar cell electrodes prepared from the composition have minimized contact resistance (Rc), specific contact resistivity, and serial resistance (Rs), thereby exhibiting excellent conversion efficiency.

Abstract: A front electrode for solar cells and a solar cell, the front electrode including a stepped structure at an outermost surface thereof, wherein the stepped structure is composed of n stages, in which n is an integer of 3 or greater, and an nth stage has a smaller cross-sectional area than an (n?1)th stage such that the (n?1)th stage is partially exposed, and the stepped structure occupies about 5% to about 100% of a total surface area of the outermost surface.

Abstract: The present invention relates to a thin film composite forward osmosis membrane with a polyethylene porous support, and a thin film composite forward osmosis membrane which is low cost, has excellent durability and chemical resistance, and outstanding performance (water flux and specific salt flux) may be provided in the present invention.

Abstract: The present disclosure provides a gas separation membrane using a ladder-structured polysilsesquioxane in which organic functional groups are attached to a long siloxane chain and a method for fabricating the same. In accordance with the present disclosure, a free-standing ladder-structured polysilsesquioxane-based membrane with various functional groups can be fabricated for gas separations. The performance of the gas separation membrane can be controlled through a variety of combinations of the organic functional groups linked to the siloxane chain. In addition, by controlling the molecular structure of the gas separation membrane through mixing of the ladder-structured polysilsesquioxane with an amine compound or conventional glassy or rubbery polymers or through thermal/UV-curing, the permeability and selectivity of the gas separation membrane can be controlled selectively.

Abstract: A composition for solar cell electrodes, a solar cell electrode prepared from the composition, a solar cell, and a method of manufacturing the same, the composition including silver powder; silver iodide; glass frit; and an organic vehicle, wherein the silver iodide is present in an amount of about 0.1 wt % to about 30 wt %, based on a total weight of the composition.

Abstract: A microorganism of the genus Corynebacterium with an improved ability to produce L-lysine in which a septum formation initiator protein is inactivated and a method for producing L-lysine using the microorganism.

Abstract: The present invention relates to a system for showing an image, and more particularly, to a system for showing an image having a game function of performing an interactive game for viewers in a theater. To this end, the present invention provides a system for showing an image, including: a plurality of motion chair assemblies including a predetermined number of motion chairs; a center server configured to control the motion chair assembly; and a screen configured to display an image output from the center server, in which a signal generated in the motion chair assembly is transmitted to the center server according to an image displayed on the screen, and when the generated signal does not accord with a preset condition, the center server operates the motion chair assembly, and when the generated signal accords with the preset condition, the center server does not operate the motion chair assembly.

Abstract: Provided are a beta prime subunit mutant of RNA polymerase, a microorganism of the Corynebacterium genus including a polynucleotide coding the same, and a method for producing L-lysine by culturing the same.