character: Dr. Johnson
topic: Photovoltaic Materials and Their Efficiency
grade: 12
subject: Chemistry
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character: Dr. Smith
topic: Types of Solar Cells and Their Applications
grade: 12
subject: Chemistry
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character: Ms. Williams
topic: The Chemistry Behind Solar Energy Conversion
grade: 12
subject: Chemistry
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character: Mr. Brown
topic: Advancements in Renewable Energy Technologies
grade: 12
subject: Chemistry
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