Provided are a device for photovoltaic power generation and a method therefor. The device for photovoltaic power generation comprises a photovoltaic power generating reactor comprising a light-transmitting surface, a light condenser component and an external electric field system; the light condenser component comprises a solar concentrating cone and a reflector for reflecting sunlight onto the solar concentrating cone; the solar concentrating cone has a light-concentrating surface facing the light-transmitting surface of the photovoltaic power generating reactor; the external electric field system comprises a positive electric field metal plate and a negative electric field metal plate, the positive electric field metal plate is arranged between the photovoltaic power generating reactor and the solar concentrating cone, and the negative electric field metal plate is arranged at the bottom of the photovoltaic power generating reactor; and the photovoltaic power generating reactor is arranged with a photoelectric conversion material inside.

The present invention relates to a solar cell (1a) comprising a stack of porous layers, a support substrate (2) for supporting the stack, and a charge conducting medium (7) penetrating through the porous layers. The stack comprises a porous light-absorbing layer (3), a porous first conductive layer (4) including conductive material for extracting photo-generated 5 electrons from the light-absorbing layer, a porous counter electrode (6) including conductive material, and a separating layer (5) made of porous electrically insulating material and arranged between the conductive layer (4) and the counter electrode (6), and where the conductive layer (4) is arranged closer to the light-absorbing layer (3) than the counter electrode (6). The support substrate (2) is porous, and the charge conducting medium (7) is penetrating through the support substrate (2).

A dye-sensitized photoelectric conversion element includes a dye-sensitized photoelectric conversion cell. The dye-sensitized photoelectric conversion cell includes: a first electrode substrate including a transparent substrate and a transparent conductive film provided on the transparent substrate; a second electrode facing the first electrode substrate; an oxide semiconductor layer provided on the first electrode substrate or the second electrode; a photosensitizing dye adsorbed to the oxide semiconductor layer; and an electrolyte provided between the first electrode substrate and the second electrode. The first electrode substrate further has an ultraviolet absorbing layer. A transmittance T.sub.A (%) of the electrolyte at a wavelength corresponding to a band gap of an oxide semiconductor that constitutes the oxide semiconductor layer and a transmittance T.sub.B (%) of the first electrode substrate at the wavelength satisfy the following Equations (1): 0.01?T.sub.A?T.sub.B<42 and (2): 3.5?T.sub.B?70.

A photovoltaic cell comprises a first electrode that includes a first transparent conductive substrate, a first layer having a plurality of first semiconductor nanofibers, and a second layer having a plurality of second semiconductor super-fine fibers, the first semiconductor nanofibers having an average diameter smaller than an average diameter of the second semiconductor super-fine fibers, a light absorbing material adsorbed to at least some of the first semiconductor nanofibers and second semiconductor super-fine fibers, a second electrode includes a second transparent conductive substrate, and electrolytes dispersed in the first and second layers.

A photoelectric conversion element includes: a pair of electrodes including a first electrode and a second electrode; a first insulator having a first capacitance, and disposed to make contact with the first electrode; a second insulator having a second capacitance, which is smaller than the first capacitance of the first insulator, and disposed to make contact with the second electrode; and an organic semiconductor receiving a light to generate an electromotive force, and interposed between the first insulator and the second insulator to make contact with them.

The present invention discloses an isodiketopyrrolopyrrole dye and use thereof. A series of pure organic dye based on isodiketopyrrolopyrrole are synthesized in the present invention, using 4,4-dihexyloxytriphenylamine as an electron donor, isodiketopyrrolopyrrole as a -bridge, and cyanoacetic acid as an electron acceptor and an anchoring group, and with a alkyl chain introduced on an isodiketopyrrolopyrrole group. The types of dyes have a relatively good light-harvesting performance as well as a relatively large steric hindrance, and they are not easy to gather while being absorbed on a semiconducting film. The pure organic dye with isodiketopyrrolopyrrole as an electronic -bridge, which is used in a dye-sensitized solar cell, has a good ability of inhibiting the recombination of electrons, and the dye-sensitized solar cells have a high photoelectric conversion efficiency.

The present invention relates to a dye-sensitized solar cell including a light absorbing layer (1), a first conducting layer (2) for extracting photo-generated electrons from the light absorbing layer, a counter electrode including a second conducting layer (3), a porous insulating layer (5b) disposed between the first and second conducting layers, and a conducting medium for transferring charges between the counter electrode and the working electrode. The solar cell further comprises a third conducting layer (6b) disposed between the porous insulating layer (5b) and the second conducting layer (3) and in electrical contact with the second conducting layer, and the third conducting layer includes a porous substrate (8) made of an insulating material and conducting particles accommodated in the pores of the porous substrate and forming a conducting network (9) through the insulating material.

Salts of N-containing heterocyclic anions as components in electrolytes Novel uses of salts of N-containing heterocyclic anions, novel salts of fluorinated N-containing heterocyclic anions and method for producing the same are described. Preferred compounds have a pyrimidone or a pyrazole ring structure bearing a trifluoromethyl group and a metal counter ion.

The present invention relates to an organic/inorganic hybrid perovskite having a novel structure which can be used as an absorber of a solar cell, a method for preparing the same, and a solar cell comprising the same. The compound according to the present invention has a perovskite structure into which deuterium is introduced, thereby exhibiting high humidity and light stability, and thus can be useful as an absorber of a solar cell.

A semiconducting nanocomposite and a dye-sensitized solar cell including the same, wherein the semiconducting nanocomposite comprises nanocomposite particles selected from the group consisting of TiO.sub.2/ZnO/CdS, TiO.sub.2/ZnO/CdSe, TiO.sub.2/ZnO/PbS, TiO.sub.2/ZnO/PbSe, TiO.sub.2/ZnS/CdSe, TiO.sub.2/ZnS/PbS, TiO.sub.2/ZnS/PbSe, WO.sub.3/ZnO/CdSe, Nb.sub.2O.sub.5/ZnO/CdSe, and combinations thereof. Various embodiments of each component of the dye-sensitized solar cell, including electrodes, conductive layers, dyes, and electrolytes are also provided.