Back contact solar cell, solar laminated cell and photovoltaic module
By introducing a carrier transport layer and a first antireflection layer into the back-contact solar cell, the problem of photoparasitic absorption was solved, efficiency was improved and cost was reduced, the fabrication process was simplified, and the reliability of the cell was enhanced.
CN121194573APending Publication Date: 2025-12-23ZHEJIANG JINKO SOLAR CO LTD
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Patent Information
- Application Number
- CN202511740066.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2025-12-23
AI Technical Summary
Technical Problem
Back-contact solar cells suffer from parasitic light absorption, resulting in poor efficiency.
Method used
By employing a carrier transport layer and a first antireflection layer, the transparent conductive layer is eliminated. By setting the carrier transport layer and the first antireflection layer, the light reflection and absorption loss are reduced, the passivation effect is improved, and the fabrication process is simplified.
Benefits of technology
This improves the photoelectric conversion efficiency of back-contact solar cells, reduces production costs, simplifies the manufacturing process, and enhances the reliability and stability of the cells.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a back contact solar cell, a solar laminated cell and a photovoltaic module, and relates to the field of photovoltaic technology, the back contact solar cell comprises a substrate, a carrier transport layer, a first anti-reflection layer, a first electrode and a second electrode, the substrate comprises a first surface with a first part and a second part, the first part is provided with a first passivation contact structure, the second part is provided with a second passivation contact structure, the carrier transmission layer is located on the sides, away from the substrate, of the first passivation contact structure and the second passivation contact structure, the first anti-reflection layer is located on the side, away from the substrate, of the carrier transmission layer, and the first electrode is located on the carrier transmission layer. The first electrode is located on the carrier transmission layer and electrically connected with the first passivation contact structure, the second electrode is located on the carrier transmission layer and electrically connected with the second passivation contact structure, the projection of the first electrode is located in the projection of the first passivation contact structure, the projection of the second electrode is located in the projection of the second passivation contact structure, and the cell efficiency is improved through the design.
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