1. Group G: Exploring Energy in Light Sloan Dantzler Mariah Davis Greg West

2. Introduction  Solar power is sunlight that is turned into electricity  World usage ~85 million barrels of oil per day (2007)  Sun provides 120,000 TW  World’s currently usage is 15TW  Silicon cell $2.5/w  $37.5 trillion  Need cheaper solar cells  Dye cells

3. How the Solar Cell Works Glass + FTO TiO 2 Platinum Electrode Electrolyte Load Dye 3I I 3

4. The study of reflection & refraction Glass + FTO TiO 2 Platinum Electrode Electrolyte Load Dye 3I I 3

5. Eosin B Erioglaucine Erythorsin Fast Green Sunset Yellow Allura Red The Dyes

6. Mariah’s sample Greg’s sample Sloan’s sample Sunset Yellow Erioglaucine Eosin B Allura Eosin B Erioglaucine Fast Green Eosin B

7. Procedure Making the titanium paste.

8. Procedure Doctor blading/ Baking process/ Sensitizing the solar cell

9. Procedure Assembling the solar cells

10. 1.12 % Eff. Results of the Ruthenium Dye

11. These are the results of the solar cells being tested in the Solar Simulator..0004 % Eff.

12. Conclusion The world still needs a cheaper source of an alternative use of energy Food dye might not be the most sustainable material to use in the cell Further research needs to be done to find other materials that will be strong enough to absorb more of the sun’s energy

13. Acknowledgements The Eberly College of Science Dr. John Asbury Dr. Greg Barber Kyle Banyas Jody Markley Derek James Josh Harper UBMS Staff And you the audience