PERC Back Side Silver Paste BY02

BY02 is a lead-free conductive silver paste designed for rear surface passivation of crystalline silicon solar cell (PERC).

In the high-temperature sintering process, it could form a good chemical and mechanical combination with the back passivation layer, and will not corrode the rear side passivated Al2O3 and SiN film to ensure the high photoelectric conversion efficiency of PERC cell. When co-firing the paste can perfectly match rear aluminum paste with low contact resistance.

It is a cost-effective rear surface passivation silver paste with features of excellent weldability and solderability, high adhesion, and aging resistance.

Benefits

  • Good Aging Resistance
  • Strong Adhesion
  • High Cost-effective
  • High Photoelectrical Conversion Efficiency

Screen Mesh

250~380 BOPP Stainless Steel Screen Mesh

Typical Drying Conditions

  • Chain fast burning furnace: 280℃-350℃/25-50sec;
  • Rotating drying furnace: 180℃-250℃/8-10min

Practical Peak Temperature

750-810℃

Test Properties
Solid Content (%) 61-69
Viscosity (Pa.S) (Brookfield,14# 10r/s, 25±0.5℃) 60-100
Fineness(μm) ≤12
Screen Mesh (BOPP Stainless steel) 250~380
Recommended Drying Conditions Chain fast burning furnace:280℃-350℃/25-50sec;

Rotating drying furnace:180℃-250℃/8-10min
Practical Peak Temperature 750-810℃
Wet Deposit (g/pcs) (156*156) 0.025-0.038
Solderability Excellent
Adhesion (N) ＞3
Shelf Life Six Months from Date of Shipment