Abstract: A redox flow battery has a high energy density and an excellent charge and discharge efficiency because re-precipitation is prevented in an electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.

Abstract: A dye for a dye-sensitized solar cell according to embodiments of the present invention includes a compound having a silane group. The dye according to embodiments of the present invention may be used in a light absorption layer to improve photovoltaic efficiency and increase open-circuit voltage.

Abstract: Provided is a solar cell including: a first electrode and a second electrode facing each other; a porous membrane interposed between the first electrode and the second electrode and having a dye adsorbed thereto; an electrolyte interposed between the first electrode and the second electrode; and a buffering layer interposed between the first electrode and the porous membrane and having at least two layers. According to the construction of the solar cell, an electron-hole recombination is prevented by preventing the contact between an electrode having a porous membrane and an electrolyte, thereby improving the electron collection property and the photoelectric conversion efficiency of the dye-sensitized solar cell.

Abstract: A dye for a dye sensitized photovoltaic cell is disclosed. A dye sensitized photovoltaic cell including the dye is also disclosed. The dye includes a metal composite treated with a cation selected from imidazolium cations, pyridinium cations, pyrrolidinium cations, and quinolidinium cations.

Abstract: Disclosed is a dye-sensitized solar cell with enhanced photoelectric conversion efficiency. The dye-sensitized solar cell includes a first electrode of a light transmission material, a second electrode facing the first electrode, and a dye-absorbed porous layer formed on the first electrode. An electrolyte is injected between the first and the second electrodes. The porous layer contains first and second materials differing from each other in conduction band energy level.

Abstract: A dye for a dye-sensitized solar cell according to embodiments of the present invention includes a compound having a silane group. The dye according to embodiments of the present invention may be used in a light absorption layer to improve photovoltaic efficiency and increase open-circuit voltage.

Abstract: A polymer electrolyte composition for a dye-sensitized solar cell, a polymer electrolyte, a dye-sensitized solar cell employing the polymer electrolyte, and a method for preparing the same. The polymer electrolyte composition for a dye-sensitized solar cell includes: a mono-functional or multi-functional monomer having at least one ethylene glycol in a side chain; a photoinitiator; a lithium salt; and an organic solvent. The polymer electrolyte suppresses the volatilization of a redox electrolyte and provides stable photoelectrochemical properties against environmental changes, such as a rise in the external temperature of a solar cell. The dye-sensitized solar cell includes: first and second electrodes facing each other; a dye-adsorbed porous film interposed between the first and second electrodes; and the polymer electrolyte interposed between the first and second electrodes. The dye-sensitized solar cell has a high voltage and high photoelectric conversion efficiency.

Abstract: An electrolyte composition for a dye sensitized solar cell according to one embodiment includes a first polymer or a non-volatile liquid compound having a weight average molecular weight of less than or equal to 500, a second polymer having a weight average molecular weight of more than or equal to 2000, inorganic nano-particles, and a redox derivative.

Abstract: An anode includes a collector; and an anode active material layer disposed on the collector comprises an anode active material, which is lithium oxide coated Li4Ti5O12, a conductive material, and a binder, wherein the lithium oxide intercalates and/or deintercalates lithium ions into and from the lattice structure of Li4Ti5O12. By coating the surface of the anode active material with lithium oxide, an anode including the surface-treated anode active material has a high capacity, high-rate properties, and a high initial efficiency.

Abstract: A dye-sensitized solar cell includes a first electrode including a conductive transparent substrate; a light absorption layer disposed on a side of the first electrode; a second electrode facing the first electrode; and an electrolyte disposed between the first and the second electrode. The light absorption layer includes a porous membrane that includes semiconductor particulates, and a photosensitized dye adsorbed on a surface of the porous membrane. The porous membrane has a membrane density ranging from about 0.83 to about 1.97 mg/mm3, wherein the membrane density is a ratio of a porous membrane volume relative to a semiconductor particulate mass.

Abstract: An electrolyte composition for a dye sensitized solar cell according to one embodiment includes a first polymer or a non-volatile liquid compound having a weight average molecular weight of less than or equal to 500, a second polymer having a weight average molecular weight of more than or equal to 2000, inorganic nano-particles, and a redox derivative.

Abstract: A solar cell includes first and second electrodes facing each other, a light absorption layer formed on the first electrode, and a lead electrode formed on the first electrode in a first direction such that the lead electrode is spaced apart from the light absorption layer. When the length of a first edge of the light absorption layer proceeding in the first direction is indicated by A and the length of a second edge of the light absorption layer proceeding in a second direction crossing the first direction is indicated by B, the value of A/B satisfies the following condition: 1.3?A/B?125.

Abstract: A solar cell includes a substrate, an electrode formed on the substrate, and a light absorption layer formed on the electrode. A contact area enlargement region is formed between the electrode and the light absorption layer. The solar cell is formed by forming an electrode with a contact area enlargement region; and forming a light absorption layer on the electrode.

Abstract: A solar cell includes an electrode and a porous film formed on the electrode and containing metallic oxide particles. The metallic oxide particles have a mean particle diameter of 5 nm-14 nm.

Abstract: A dye for a dye sensitized photovoltaic cell is disclosed. A dye sensitized photovoltaic cell including the dye is also disclosed. The dye includes a metal composite treated with a cation selected from imidazolium cations, pyridinium cations, pyrrolidinium cations, and quinolidinium cations.

Abstract: An electrode for a photoelectric conversion device includes a transparent substrate and a transparent conductive film, in which the transparent conductive film contains an added metal element on at least one surface thereof, and the surface resistance of the transparent substrate is reduced in order to improve the photoelectric conversion efficiency. A dye-sensitized solar cell includes the electrode.

Abstract: A polymer electrolyte composition for a dye-sensitized solar cell, a polymer electrolyte, a dye-sensitized solar cell employing the polymer electrolyte, and a method for preparing the same. The polymer electrolyte composition for a dye-sensitized solar cell includes: a mono-functional or multi-functional monomer having at least one ethylene glycol in a side chain; a polymerization initiator; a lithium salt; and an organic solvent. The polymer electrolyte suppresses the volatilization of a redox electrolyte and provides stable photoelectrochemical properties against environmental changes, such as a rise in the external temperature of a solar cell. The dye-sensitized solar cell includes: first and second electrodes facing each other; a dye-adsorbed porous film interposed between the first and second electrodes; and the polymer electrolyte interposed between the first and second electrodes. The dye-sensitized solar cell has a high voltage and high photoelectric conversion efficiency.

Abstract: A transparent electrode having thermal stability, composed of a transparent conductive material containing a pentavalent element, a method of fabricating the same, and a dye-sensitized solar cell including the electrode. The transparent electrode having thermal stability does not substantially deteriorate even when it is exposed to high temperatures and its conductivity is not reduced. Thus, the dye-sensitized solar cell including the electrode can have improved performance.

Abstract: A dye-sensitized solar cell using a photoelectric transformation electrode. The solar cell includes a semiconductor electrode, a counter electrode provided opposite to the semiconductor electrode, an oxide semiconductor layer provided between the semiconductor electrode and the counter electrode and having a dye adsorbed thereon, an electrolyte solution provided between the semiconductor electrode and the counter electrode, a spacer partitioning a space defined between the semiconductor electrode and the counter electrode to form at least one unit cell, and a metal wire at least partially patterned between the at least one unit cells.

Abstract: An electrolyte composition and a solar cell using the same are provided. The electrolyte composition comprises an electron donor compound “A” having a lone electron pair, an iodine salt. and iodine (I2). The electrolyte composition according to the present invention increases electrons in a porous film to improve a charge integration capacity and increases the open circuit voltage, thereby providing a dye sensitized solar cell with high efficiency.