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DSSC Presentation

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Dye-sensitized solar cell
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  Dye Sensitized Solar Cells Emily LevinDongxu Huang Wisaruth Maethasith Woochul Shin Scott Dunaisky  Background -Utilization of renewable energy such as solar cells in place of carbon-based fuel - Assuming constant consumption rate, carbon-based fuel will run out in 2088 (2050 for oil). -Possible renewable energy: Solar energy - the supply of energy from the sun to the earth is 3×10 24  J a year, or about 10,000 times more than that the global population currently consumes. -Highest efficiency at 44.7% by Fraunhofer - A stack of Multiple III-V three-junction solar cells - Inhibitively expensive. Used by NASA. Fraunhofer ISE, 2013 CIA Fact Book  Background -Most present solar cells are based on inorganic materials -High cost of materials and manufacturing cost. -Alternative: Dye-sensitized solar cells (DSSC) -Discovered in 1991 by Gratzel et al. - the functional element, which is responsible for light absorption (the dye), is separated from the charge carrier transport. Low-to-medium quality of materials can be used and thus lower the cost. -Highest record at 15% (using perovskite as light harvesting materials) with the overall of around 11%
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