Dye-sensitized solar cell element for low illuminance

A dye-sensitized solar cell element for low illuminance comprising:

• at least one dye-sensitized solar cell;
• a first current extracting portion for extracting current from the at least one dye-sensitized solar cell;
• and
• a second current extracting portion for extracting current from the at least one dye-sensitized solar cell,
• wherein the dye-sensitized solar cell includes
• a first electrode having a transparent substrate and a transparent conductive layer provided on one surface of the transparent substrate,
• a second electrode facing the first electrode and having a metal substrate,
• an oxide semiconductor layer provided on the first electrode or the second electrode, and
• an annular sealing portion bonding the first electrode and the second electrode,
• the first current extracting portion is included in the transparent conductive layer of one dye-sensitized solar cell of the at least one dye-sensitized solar cell,
• the second current extracting portion is provided on the one surface of the transparent substrate of the at least one dye-sensitized solar cell and is electrically connected with the metal substrate of the second electrode of one dye-sensitized solar cell of the at least one dye-sensitized solar cell, the first current extracting portion and the second current extracting portion are disposed radially outside of the annular sealing portion so as to be adjacent to each other, and the oxide semiconductor layer is provided radially inside of the annular sealing portion;
• wherein the second current extracting portion is included in the transparent conductive layer.

A dye-sensitized solar cell element for low illuminance comprising:

• at least one dye-sensitized solar cell;
• a first current extracting portion for extracting current from the at least one dye-sensitized solar cell;
• and
• a second current extracting portion for extracting current from the at least one dye-sensitized solar cell,
• wherein the dye-sensitized solar cell includes
• a first electrode having a transparent substrate and a transparent conductive layer provided on one surface of the transparent substrate,
• a second electrode facing the first electrode and having a metal substrate,
• an oxide semiconductor layer provided on the first electrode or the second electrode, and
• an annular sealing portion bonding the first electrode and the second electrode,
• the first current extracting portion is included in the transparent conductive layer of one dye-sensitized solar cell of the at least one dye-sensitized solar cell,
• the second current extracting portion is provided on the one surface of the transparent substrate of the at least one dye-sensitized solar cell and is electrically connected with the metal substrate of the second electrode of one dye-sensitized solar cell of the at least one dye-sensitized solar cell, the first current extracting portion and the second current extracting portion are disposed radially outside of the annular sealing portion so as to be adjacent to each other, and the oxide semiconductor layer is provided radially inside of the annular sealing portion;
• further comprising another transparent conductive layer provided on the transparent substrate, wherein the second current extracting portion is included in the other transparent conductive layer.