ORGANIC PHOTOVOLTAIC CELL

• US 20200136071A1
• Filed: 10/23/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Abandoned Application

• Current Assignee: Taiyo Yuden Company Limited (Taiyo Yuden Co)
• Original Assignee: Taiyo Yuden Company Limited (Taiyo Yuden Co)
• Inventors: SOMEI, Hidenori, FUKUSHIMA, Takeyuki
• Application Number:
  US16/661,804
• Publication Number:
  US 20200136071A1
• Time in Patent Office: Days
• CPC Class Codes: H10K 30/82 Transparent electrodes, e.g. indium tin oxide [ITO] electrodes
• CPC Class Codes: H10K 30/83 comprising arrangements for extracting the current from the cell, e.g. metal finger grid systems to reduce the serial resistance of transparent electrodes
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

In an exemplary embodiment, an organic photovoltaic cell includes: a transparent electrode layer 21; an opposing electrode layer 32 facing the transparent electrode layer 21; an organic generation layer 25 provided between the transparent electrode layer 21 and the opposing electrode layer 32; a first electrode 21a connected to the transparent electrode layer 21; and a second electrode 21b connected to the opposing electrode layer 32 and provided, in plan view, on the side where the first electrode 21a is located.

Claims

1. An organic photovoltaic cell comprising:

a transparent electrode layer;

an opposing electrode layer facing the transparent electrode layer;

an organic generation layer provided between the transparent electrode layer and the opposing electrode layer, wherein a region where the transparent electrode layer, the opposing electrode layer, and the organic generation layer overlap one another as viewed from above or in a thickness direction, i.e., in plan view, constitutes a cell region;

a first electrode electrically connected to the transparent electrode layer; and

a second electrode electrically connected to the opposing electrode layer and provided, in plan view, on a side of the cell region where the first electrode is located or along a contour of the cell region in a side-by-side manner.

2. The organic photovoltaic cell according to claim 1, wherein:

the cell region is a polygon in plan view; and

the first electrode and the second electrode each extend, in plan view, from a same side of the polygon to an outside of the cell region.

3. The organic photovoltaic cell according to claim 1, wherein:

the cell region has a curved side in plan view; and

the first electrode and the second electrode each extend, in plan view, from the side to an outside of the cell region.

4. The organic photovoltaic cell according to claim 3, wherein:

the first electrode and the second electrode are positioned, in plan view, within an angle range of 90°

from a point inside the cell region.

5. The organic photovoltaic cell according to claim 4, wherein:

the cell region is a circle or ellipse, and the point inside the cell region corresponds to a center point of the circle or ellipse.

6. The organic photovoltaic cell according to claim 1, wherein:

further comprising a transparent substrate having a first principal face on which light is incident and a second principal face on which the transparent electrode layer is formed, wherein the first electrode and the second electrode are formed on the second principal face of the transparent substrate.

7. The organic photovoltaic cell according to claim 6, wherein:

the first electrode is formed by extending a part of the transparent electrode layer on the second principal face; and

the second electrode is positioned in a same plane with the transparent electrode layer.

8. The organic photovoltaic cell according to claim 6, wherein:

further comprising a supporting substrate that has been bonded to the transparent substrate via the opposing electrode layer, wherein the first electrode and the second electrode each remain exposed instead of being covered by the supporting substrate.