Technical Photovoltaics From the Sun to Energy Sun´s Energy Irradiated Energy Irradiated Energy worldwide Photovoltaic Power Supply Einführung in die Chemie Efficiency Energetic Overview Positioning Solar Cells Positioning Solar Cells Positioning Solar Cells Buildings Solar Hydrogene System Measuring the Sun´s Radiation Calibration of a Solar Cell Calibration / Diagram Solar Cells Semiconductor Doped Semiconductors Doped Semiconductor Generation of Photovoltage Generation of Voltage Generation of Photovoltage Generation of Photovoltage Generation of Photovoltage Generation of Photovoltage Generation of Photovoltage Open Circuit Voltage aSi-Cell Efficiency Efficiency Power Characteristic of a Solar Cell Power Characteristic of a Solar Cell Tandem Cells Tandem Cells Further Development Further Development Further Development Further Development CIS-Cells Dye-Cells