Based on n-type material PERL cells have a long life expectancy and achieve an efficiency potential of 25 %. Combined with the per se bifaciality of this cell architecture up to 40 % higher energy harvest in PV installations can be achieved. The simple manufacturing process based on the SCHMID co-diffusion leads to best of class conversion costs.
SCHMID’s PERL Bifacial Cell Technology:
- High efficiency by passivation on n-type mono material
- Bifacial concept featuring over 30 % more energy yield
- Just one temperature step for both phosphorus and boron deposition minimizes stress for the wafers
- Lowest process times
- Simple line configuration by proven equipment
- Transparent back-sheet or glass on module rear side
- Same cost of ownership as for PERC cells
Wet Bench | APCVD | Wet Bench | APCVD | Diffusion |
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Texturing & polishing | PSG formation BSF | Edge isolation & etch back rear side | BSG formation emitter | Boron & Phosphorus Co-diffusion |