Abstract: Disclosed herein are a novel dye for a photoelectric device and a photoelectric device comprising the dye. More particularly, the dye for a photoelectric device incorporates different quaternary ammoniums into a carboxyl or phosphoric acid-substituted bipyridyl ligand of the dye, and a photoelectric device comprising the same. The dye for a photoelectric device as disclosed herein exhibits improved photosensitivity and light absorbing characteristics, thereby making it possible to fabricate a highly efficient photoelectric device when the dye is included in the device.

Abstract: Disclosed is a novel dye for use in a photoelectronic device, wherein the photoelectronic device is comprised of a photoanode comprising the dye. According to the novel dye, the dye is derived through the introduction of a group which narrows the dihedral angle of the dye ligand as well as through the introduction of conjugated groups. Since the dye has improved light sensitivity and absorption properties, it can be used to fabricate a photoelectronic device with high power conversion efficiency.

Abstract: Disclosed herein is a photovoltaic cell using catalyst-supported carbon nanotubes and a method for producing the same. More particularly, the photovoltaic cell includes a photo anode, a cathode including a layer of metal catalyst particle supporting carbon nanotubes, and an electrolyte disposed between the photo anode and the cathode. The photovoltaic cell is economic in terms of production costs and process steps, and shows improved catalytic activity due to an enlarged contact area and conductivity, resulting in excellent photoelectric efficiency.

Abstract: A method for manufacturing an indium tin oxide (ITO) target and methods for preparing indium oxide powder (In2O3) and tin oxide powder (SnO2). The method for manufacturing an ITO (indium tin oxide) target includes preparing an In2O3 powder having a surface area of about 10-18 m2/g and an average particle diameter of between about 40 to 80 nm; preparing a SnO2 powder having a surface area of about 8-15 m2/g and an average particle diameter of about 60-100 nm; molding a mixture of the In2O3 powder and the SnO2 powder; and sintering the mixture at atmospheric pressure under oxidation atmosphere. The ITO target is applicable for a high-quality, transparent electrode for a display, such as a liquid crystal display, electroluminescent display, or field emission display.

Abstract: Disclosed are a novel dye, having a dispersant functional group to simultaneously exhibit a dye function and a dispersant function, and a dye-sensitized solar cell including the same. According to this invention, the dye may simultaneously manifest a dye function for absorbing light, made possible by being adsorbed on the entire surface of metal oxide particles, to thus produce excited electrons which are then transferred into a conduction band of metal oxide, and a dispersant function for preventing the agglomeration of the particles to thus improve the uniformity of the metal oxide particles in a paste and film density.

Abstract: Disclosed herein is a semiconductor electrode with improved power conversion efficiency through inhibition of recombination reactions of electrons. The semiconductor electrode comprises a transparent electrode consisting of a substrate and a conductive material coated on the substrate, and a metal oxide layer formed on the transparent electrode wherein the metal oxide layer contains a phosphate. Further disclosed is a solar cell employing the semiconductor electrode.

Abstract: Disclosed herein is an electrolyte composition useful in a dye-sensitized solar cell. The electrolyte includes a ring compound to which metal cations of an oxidation-reduction derivative are bound, so that the anions of the oxidation-reduction derivative can freely deliver electrons, thereby significantly improving the photoelectric conversion efficiency of the solar cells.

Abstract: Disclosed herein is a semiconductor electrode including a layer of metal oxide particles; a dye coating a surface of the layer of metal oxide particles; and a carbon nanotube, having at least one anchoring functional group, attached to the layer of metal oxide particles through the anchoring functional group. Also disclosed are a method for preparing the semiconductor electrode and a solar cell including the semiconductor electrode.

Abstract: Provided are a cylindrical flexible solar cell which is made of only flexible materials so that the cell can freely bend, has a cylindrical shape which allows the cell to absorb solar light at any angle of illumination, and has a large surface area and high efficiency; and a method of producing the same.

Abstract: A photoacceptive layer having a core-shell structure and a solar cell using the same are provided. More specifically, a photoacceptive layer including a metal oxide of a core-shell structure which can improve photoconversion efficiency by improving a electron migration path, and a solar cell using the same are provided.

Abstract: Provided are a continuous-phase semiconductor electrode that can provide better photoelectric conversion efficiency by improving a pathway for electron transport, a method of manufacturing the same, and a solar cell employing the same. The semiconductor electrode includes a transparent conductive electrode, formed on a substrate, including a metal or a metal nitride; and a metal oxide layer continuously formed on the transparent conductive electrode.

Abstract: A photoreceptive layer including heterogeneous dyes is provided. The dye fill density is enhanced and light absorption is achieved at a broad wavelength range, which enables the beneficial utilization of the photoreceptive layer in a dye-sensitized solar cell.

Abstract: Provided is a semiconductor anode including: a metal oxide semiconductor formed on a conductive substrate; a dye formed on a surface of the metal oxide semiconductor; and a polymer self-assembled on a surface of the metal oxide semiconductor. Provided are also a dye-sensitized solar cell, a method of manufacturing the dye-sensitized solar cell, and a polymer composition used for the method of manufacturing the dye-sensitized solar cell. The dye-sensitized solar cell includes an organic material-incorporated metal oxide semiconductor. Therefore, the transfer of electrons in the semiconductor to an electrolyte can be prevented, thereby increasing photocurrent and photovoltage, resulting in enhancement in energy conversion efficiency.

Abstract: Provided are a photoanode including: a conductive substrate; carbon nanotubes and a semiconductor formed on the conductive substrate; and a photosensitizer formed on the carbon nanotubes and the semiconductor, and a solar cell including the photoanode. In the photoanode, the conductive carbon nanotubes can be directly formed on the conductive substrate, thereby promoting electron transfer, unlike in a common photoanode with no carbon nanotubes. In particular, densely formed, branched carbon nanotubes can serve as electron transfer channels between semiconductor particles, thereby enabling an effective application to solar cells, etc.

Abstract: A photovoltaic cell having an improved semiconductor layer and a method of manufacturing the same are provided. The photovoltaic cell includes a first electrode and a second electrode disposed opposite each other and spaced a predetermined distance apart from each other; and an oxide semiconductor layer interposed between the first and second electrodes and disposed on the first electrode. The oxide semiconductor layer includes a base and a plurality of rods, each of which vertically extends from the base and provides fine apertures, and the base and the rods are integrally formed. As the surface area of the oxide semiconductor layer increases, the photovoltaic cell achieves a high electron transfer efficiency and a high photoelectric conversion efficiency.

Abstract: SnO2 powder having a surface area of about 4-15 m2/g and an average particle diameter of about 50-200 nm, a method for preparing the SnO2 powder, and a method for making an ITO (indium tin oxide) target. The SnO2 powder is applicable in forming a high-density indium tin oxide target for a high-quality, transparent electrode for a display, such as a liquid crystal display, electroluminescent display, or field emission display.

Abstract: In2O3 powder, a method for preparing the In2O3 powder, and a method for manufacturing an indium tin oxide (ITO) target using the In2O3 powder. In the method for preparing the In2O3 powder, an alkaline precipitate is added to an indium solution having an indium ion concentration of about 2-5 M at a rate of about 0.5-4 L/min while the pH of the indium solution is adjusted to about 5-9, to form an In(OH)3 precipitate. Next, the precipitate is precipitated at a temperature of between about 600 to 1,100C. to produce the In2O3 powder. The In2O3 powder having a surface area of between about 5 to 18 m2/g and an average particle diameter of between about 40 to 160 nm is obtained. The In2O3 powder is applicable to form an ITO target for a high-quality, transparent electrode for a display, such as a liquid crystal display, electroluminescent display, or field emission display.