Solar cell, solar cell module, and method for manufacturing a solar cell

By integrating a conductive mirror layer and a p-type oxide semiconductor hole transport layer, the solar cell enhances light absorption and protects the mirror layer, addressing efficiency and durability issues in thin-film solar cells.

JP7875615B2Active Publication Date: 2026-06-18PXP CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
PXP CORP
Filing Date
2024-06-03
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing solar cells face limitations in light absorption efficiency due to the thickness constraints of the light absorption layer, and the conductive mirror layer is prone to deterioration, which affects reflectivity and photoelectric conversion efficiency.

⚗Method used

Incorporating a conductive mirror layer and a p-type oxide semiconductor hole transport layer between the back electrode and the light absorption layer, with a specific manufacturing process involving heat treatment in sulfur, selenium, chlorine, or iodine atmospheres to enhance light absorption and protect the mirror layer.

🎯Benefits of technology

Improves light absorption efficiency and suppresses deterioration of the conductive mirror layer, resulting in enhanced photoelectric conversion efficiency and reduced production costs through thinner, flexible solar cell designs.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a solar cell, a solar cell module, and a method for manufacturing a solar cell that improve light absorption efficiency and suppresses deterioration of a conductive mirror layer.SOLUTION: A solar cell includes at least a substrate, a conductive mirror layer, a hole transport layer made of a p-type oxide semiconductor, and a light absorption layer, in this order.SELECTED DRAWING: Figure 1
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