摘要:
Disclosed herein is a method for modifying the surface of a counter electrode. According to the method, the surface modification is achieved by treating the surface of a counter electrode with a polyethylene glycol derivative having a pendant group at one end. Also disclosed is a counter electrode whose surface is modified by the method. The electron transfer rate at the interface between the counter electrode and an electrolyte layer of a photovoltaic device is increased and the affinity of the counter electrode for the electrolyte layer is improved, resulting in an improvement in the power conversion efficiency of the photovoltaic device.
摘要:
A dye-sensitized solar cell using an ion-bound oligomer complex is provided. The dye-sensitized solar cell comprises an electrolyte, comprising a first oligomer having a C5-30 heteroaryl group containing a nitrogen heteroatom as a basic functional group at both ends of the molecule, mixed with a second oligomer having an acidic functional group selected from among carboxylic acid, phosphoric acid, and sulfonic acid, at both ends of the molecule, to thus form a salt, which then leads to an ion-bound oligomer complex that constitutes the electrolyte. The solar cell exhibits excellent mechanical properties, can be manufactured conveniently, and can have a high energy conversion efficiency.
摘要:
Disclosed herein are a polymer solar cell, comprising a substrate, a first electrode, a hole injection layer, a photoactive layer, and a second electrode, characterized in that an electron-accepting layer is formed between the photoactive layer and the second electrode, and a method of manufacturing the polymer solar cell. The polymer solar cell comprises an electron-accepting layer between the photoactive layer and the second electrode, thereby assuring excellent power conversion efficiency. Furthermore, high power conversion efficiency can also be attained in a low-temperature thermal annealing process.
摘要:
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.
摘要:
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.
摘要:
Disclosed herein are a metal oxide paste composition comprising a carboxylic ester dispersant and/or a phosphate dispersant, and a method for manufacturing a semiconductor electrode for solar cells using the same. The disclosed metal oxide paste composition improves the dispersibility of metal oxide nanoparticles. Thus, if it is used to manufacture a semiconductor electrode for solar cells, it will allow the increased adsorption of a dye, thus improving the photoelectric efficiency of the resulting solar cell.
摘要:
Disclosed herein is a material, and a solid electrolyte and a photovoltaic device using the same. When the material is used as a hole transporting layer material of the photovoltaic device, the reduction of an electrolytic layer resulting from leakage or volatilization of an electrolytic solution is prevented, thus the battery characteristics, long-term stability, and reliability of the photovoltaic device are improved.
摘要:
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.
摘要:
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.
摘要:
An electroluminescnet polymer is represented by the following formula (1): wherein X1 to X5 are independently a hydrogen atom, a linear alkyl or alkoxy group having 1 to 40 carbon atoms, a branched alkyl or alkoxy group having 3 to 40 carbon atoms, a cyclic alkyl group having 5 to 40 carbon atoms, a silyl group, or an aromatic group having 6 to 14 carbon atoms which is unsubstituted or substituted with at least one selected from the group consisting of an alkoxy group having 1 to 40 carbon atoms and an amine group.