Electronic pastes and related materials are integral to the manufacturing and performance enhancement of solar photovoltaic cells and modules.

Silver paste and aluminum paste are crucial for creating efficient and reliable electrical contacts, while conductive adhesives ensure strong and flexible interconnections. These materials, combined with encapsulants and coatings, play a vital role in advancing solar technology, improving efficiency, and ensuring the durability of solar energy systems.

Silver Conductive Paste

Busbars and Fingers

  • Application: Silver paste forms the busbars and fingers on the front side or the back side of solar cells.
  • Process: These components are printed using precise screen-printing techniques to minimize shading and maximize the surface area available for light absorption.
  • Benefits: Ensures efficient current collection and minimal power loss.

Aluminum Paste

Back-Surface Field (BSF) Layer

  • Application: Aluminum paste is used to create the BSF layer on the rear side of silicon solar cells.
  • Process: The paste is screen-printed onto the rear surface and then fired to form an aluminum-silicon alloy that improves the cell’s efficiency by reflecting unabsorbed light back into the cell and reducing recombination at the rear surface.
  • Benefits: Enhances cell efficiency, improves light reflection, and provides a good electrical back contact.

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