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Comparing dye-sensitized solar cellsFeatured science projectScience project video

Conclusion

The hypothesis that  silicon based solar cells  are able to produce more power is proven to be true.

Dye-sensitized solar cells are are product of third generation of solar cell technology. Research shows that whilst silicon based solar cells are able to operate at 15% peak power production efficiency,dye-sensitized cells can achieve 11% compared to other thin film technology at only about 8%.

Also consider

The experiment can be repeated by using different fruit juices such as  blueberry or cranberry juice.

Try to repeat the experiment using a larger glass slide.

References

Dye sensitized solar cell - http://en.wikipedia.org/wiki/Dye-sensitized_solar_cell

How dye sensitized solar cells work? - http://www.solideas.com/solrcell/howworks.html

Instructions for building a Gratzel solar cell -http://teachers.usd497.org/agleue/Gratzel_solar_cell%20assets/instructions%20for%20making%20the%20gratzel%20cell.htm

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Complexity level:
9
Project cost ($):
90
Time required:
2 days to prepare, 1 hour for experiment
Material availability:
Access to your school's science lab is required
Safety concerns:

Handle chemicals with care. Proper laboratory gear/gloves should be worn. Ensure that chemicals are properly disposed of.