General:
Dr. Riemenschneider
| Team | Assistant
General: Dr. Riemenschneider |
Date |
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| We Will Focus on Solar Cells | ||||||
| Topics | ||||||
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Markets, Technologies, Companies - an Overview | |||||
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Solar Energy - what we get, we can use. | |||||
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Humans and Energy: Where it comes from, how much we use, where we are headed. | |||||
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Prices of Energy | |||||
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Solar Cells - History, where it is headed | |||||
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Basic Principles of Solar Cells and Solar Cell Moduls | |||||
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Basics: IV, efficiency , fill factor, etc.. Essential material parameters (doping, life time, absorption,...). Add series resistance, add parallel resistance; discuss. Temperature dependence of efficiency etc. | |||||
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Equivalent circuits, local variations of parameter. | |||||
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Making Moduls. Problem of series resistance, shadowing | |||||
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Crystaline Silicon Solar Cells | |||||
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Monocrystalline high-efficiency cells. Mass product vs. world record winners. n- vs. p-doping. | |||||
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Polycrystalline Cells. Making poly, making cells. Si shortage problem | |||||
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Sliver Cells and other specialities. | |||||
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The CIS Family | |||||
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CuInSe2and related materials. What makes them special? | |||||
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Give properties of materials and specifics of technology; Sputtering vs. CVD? | |||||
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Specifics of technology: Series connection, stability, ... | |||||
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Discuss the role of crystal lattice defects and of hydrogen passivation2 | |||||
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Discuss related materials, pro and cons, e.g. HgCdTe systems | |||||
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Amorphous and Nanocrystalline Thin-Film Si Solar Cells | |||||
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Discuss amorphous Si cells. What went wrong? | |||||
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New developments. "Thin" and "Thick" Thin-Film cells. | |||||
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Potential and specifics | |||||
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Tandem Cell, "Nano Cells and Exotica | |||||
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Discuss tandem principle | |||||
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Examples for tandem cell development | |||||
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State of the art, potential for future | |||||
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New concepts with e.g. nanodots | |||||
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Characterization Techniques | |||||
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Characterizing a finished solar cell. Doing it with local information. Doing it in 1 s. | |||||
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Characterizing materials (e.g. poly Si wafers or CIS layers). Which parameters are important? How to measure? How to predict the quality of cells made with the material? | |||||
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Characterizing modules. Give some specific problems. | |||||
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