Among the many types of solar cells, crystalline Solar cells have a good efficiency performance and they are the type with the highest share in the market.
The sunlight that shines on a solar cell looses positive and negative electrons, which start to move inside the cell.
When the negative electrons touch the p-n-junction and move in the n-layer, the positive electrons stay in the p-layer.
Both are separated from each other and electric voltage starts to flow.
Touching the surface conductors, an electric current is produced and electricity generated. Screen-printing can be used especially for applying the surface conductors on the silicon wafers.
Crystalline silicon solar cells consist of two types: mono-crystalline cells and poly-crystalline cells.
The basic principle is nearly the same; both types are produced from a silicon ingot but every type has its advantages and deficits, regarding cost and cell quality.
|Advantages and deficits of Mono-crystalline Solar cells||Advantages and deficits of Poly-crystalline Solar cells|
|Advantage: Higher energy efficiency||Advantage: Production cost lower
because of low raw material price
|Deficit: Production cost high
because of high raw material price
|Deficit: Energy efficiency is lower
because of low-quality silicon structure
With Micro-tec’s original squeegee, it is possible to print high performance conductive lines on a stable level.
This original pressure control mechanism minimizes the stress on the wafer for a low breakage rate.
Furthermore the damage to the texture layer of the wafer is also minimized.
Micro-tec screen printers with high-precision alignment system are also capable of multi-layer print (high-aspect finger line print).
We accept various options and modifications
according to the application and budget.
Please feel free to contact us
about screen printing machines.