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A course in Si solar cell design – Pietro P. Altermatt The photovoltaic principle 1

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Page 1: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

A course in Si solar cell design – Pietro P. Altermatt

The photovoltaic principle

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Page 2: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Absorption of light

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Page 3: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Production of a current

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Page 4: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Production of a voltage

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Page 5: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Selective contacts

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Page 6: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

The role of the p-n junction

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Page 7: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Recombination

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Page 8: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Currents through the diode (in the dark)

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Page 9: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

The solar cell under illumination

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Page 10: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

The solar cell’s output parameters

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Page 11: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Cell improvements

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Page 12: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

The Shockley equation for the diode

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Page 13: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Interview with Peter Würfel

The most general idea

The Carnot process

Solar cells as heat engines

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Page 14: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

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Page 15: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Conversion of solar heat into chemical energy

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Page 16: Absorption of light - PV Lighthouse Web viewSolar cells as heat engines. Conversion of solar heat into chemical energy. Conversion of chemical energy into electrical energy. Realization

Conversion of chemical energy into electrical energy

Realization

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