CHAPTER THREE THE SOLAR CELL TECHNOLOGY 2e A G.I. Module Energie Solaire Copyright, 2006 © Ahmed S. Bouazzi المدرسة الوطنية للمهندسين بتونس.

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CHAPTER THREE THE SOLAR CELL TECHNOLOGY 2e A G.I. Module Energie Solaire Copyright, 2006 © Ahmed S. Bouazzi المدرسة الوطنية للمهندسين بتونس

World production (MW)

PV systems shipping (1995)

SiO 2 + 2C  Si (solid) + 2CO (gas) Silicon Purification

Czochralski Crystal Pulling

The Silicon Ingot

Heat Exchange Method (HEM)

Inner-Diameter Saw

Multiwire Saw

Si Wafers Sliced From Ingot

Edge Film Growth (EFG)

Doping of the Wafers

Electric Contact on the Cell

t Silicon SiO 2 Anti-reflection Solutions (1)

Anti-reflection Solutions (2)

Aluminum frame Sealing gasket EVAGlass Spacer Cell Encapsulation of the Panel

By-pass Diode

I SC Parallel Connection

V OC Series Connection

V OC I SC Series-Parallel Connection

Cells in Parallel with Different V OC

Cells in Series with Different I SC

Amorphous Silicon Cells

CdS/Cu2S Cells

CdS/CdTe Cells

GaAlAs/GaAs Cells

C2C2 0 Watt price Line of the minimum efficiency (  cmin ) Row material cost Profitability limit line P Cost Effectiveness

C2C2 0 Watt price Line of the minimum efficiency (  cmin ) Row material cost Profitability limit line P Importance of the Efficiency

Lost material Energetic Pay Back