Solar cell, manufacturing method thereof and photovoltaic module

By designing a suede structure with a specific morphology on the semiconductor substrate, the passivation effect and contact resistance problems of the amorphous silicon layer in the solar cell are solved, and the conversion efficiency and light absorption performance of the solar cell are improved.

CN120603394AActive Publication Date: 2025-09-05LONGI PHOTOVOLTAIC TECHNOLOGY (ORDOS) CO LTD
View PDF 6 Cites 1 Cited by

Patent Information

Application Number
CN202511108004.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-08
Publication Date
2025-09-05
Estimated Expiration
2045-08-08

AI Technical Summary

Technical Problem

The existing solar cell conversion efficiency needs to be further improved, especially in terms of passivation effect and contact resistance of the amorphous silicon layer.

Method used

A first suede morphological region is designed on a semiconductor substrate, including a non-plaque region and a dispersed plaque region. The plaque region has a closed pattern and is of different heights. By adjusting the shape and distribution of the suede structure, the conformity and contact resistance of the amorphous silicon layer are improved, and the passivation effect is improved.

Benefits of technology

The passivation effect of the amorphous silicon layer on the semiconductor substrate is improved, the contact resistance between the amorphous silicon layer and the conductive material is reduced, and the light absorption utilization rate and conversion efficiency of the solar cell are enhanced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120603394A_ABST
    Figure CN120603394A_ABST
Patent Text Reader

Abstract

The invention discloses a solar cell, a manufacturing method thereof and a photovoltaic module, relates to the technical field of photovoltaics, and is used for improving the passivation effect of an amorphous silicon layer on a semiconductor substrate and facilitating the improvement of the conversion efficiency of the solar cell. The solar cell comprises a semiconductor substrate and an amorphous silicon layer. The semiconductor substrate includes a first suede topography region. The amorphous silicon layer is arranged on the first suede morphology area. Wherein the first suede morphology area comprises a non-plaque area and a plurality of plaque areas dispersed in the non-plaque area. In the thickness direction of the semiconductor substrate, the height of the non-plaque region is different from that of the plaque region. The photovoltaic module comprises the solar cell. The manufacturing method of the solar cell is used for manufacturing the solar cell.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Solar cell and photovoltaic module

    CN117293194A

  • Back contact battery, manufacturing method thereof and photovoltaic module

    CN117558798A

  • Solar cell, manufacturing method thereof and photovoltaic module

    CN118335817A

  • Preparation method of solar cell, solar cell and photovoltaic module

    CN119300515A

  • Back contact battery and photovoltaic module

    CN120051065A

Cited By

  • Solar cell, manufacturing method thereof and photovoltaic module

    CN121419399A