You can eat a solar cell? A unit on solar energy begins with a discussion about organic solar cells, followed by directions on how to build your own. After following the teacher's directions to build an anthocyanin dye-sensitized solar cell, groups then power different electronic devices with the cell.

Concepts

solar energy, energy, energy conversion, solar cells, technology resources

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Instructional Ideas

• Collect voltage data and compare the results to other solar cells by plotting them
• Determine voltage output and calculate the number of cells needed to power specific electronics

Classroom Considerations

• Be careful with the dye so as not to stain clothing
• Materials need to be ordered
• Designed as an "I do, you duplicate" type activity

Pros

• Interesting and unique concept that isn't common in standard curriculum
• Resource provides extensive background information  

Cons

• Limited guidance on how to check for understanding