PERC Front Side Busbar Silver Paste PZ
PZ is a high-efficiency conductive front-side busbar silver paste specially designed for rear-passivated crystalline silicon solar cells (PERC for short).
The product is used for front busbar printing. It has a unique non-burn-through glass design and can provide excellent solderability and solder resistance to meet different interconnection processes.
Benefits
- Unique rheological properties meet printing requirements, the surface of the silver layer is smooth and flat, high tensile force, and wide welding window.
- It has low unit consumption, good conductivity, is suitable for long-term printing, and can effectively improve the conversion efficiency of the battery.
Typical Drying Condition:
Rotary drying oven:
Drying temperature: 100~350℃, drying time: 5-10min;
Chain type fast burning furnace:
Drying temperature: 100~350℃, drying time: 5-50s.
The time can be adjusted according to the status of the drying, but should not be too long.
| Test | Properties |
|---|---|
| Solid Content (%) | 80-90 |
| Viscosity (Pa.S) (Brookfield DV1 SC4-14/50R±0.1℃) | 50-150 |
| Fineness (μm) | ≤10 |
| Resistivity (μΩ.cm) | ≤ 5 |
| Pulling Strength (N) | ≥ 1.5 |
| Screen Mesh | 280-520 |
| Unit Consumption (g/pc, 182 wafer) | ≤ 0.04 |
| Recommended Drying Conditions | 100-300℃ |
| Practical Peak Temperature | 700-800℃ |
| Surface | No false prints, no defects, smooth surface and no bad appearance |
| EL Test | No blackening |
| Shelf Life | Six Months from Date of Shipment |
