Undergraduate Category: Engineering and Technology Degree Seeking: BS Physics Abstract ID #1822
DYE-SENSITIZED SOLAR CELLS (DSSC) BASED ON ZINC OXIDE NANORODS Conor Delaney, Jaime Alvarez Duque, Zach Crowell, Yunlong Li, Haridas Kumarakuru, Eugen Panaitescu, Latika Menon
PURPOSE • • • •
RESULTS
World energy consumption is expected to rise by more than ~50% over the next two decades (2007-2035) [1] In addition to the problem of releasing waste products into the environment, traditional fossil fuel energy sources are finite. So alternative energy sources such as wind, hydroelectric and solar PV-derived power are in increasing demand. Solar PV electricity is one of the most promising alternative energy sources.
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Fig 3 [a-b]: ZnO Nanorod Arrays grown by Electrodeposition method Fig 5: I-V Curve for the device fabricated in our lab (a) (b)
Fig 4 [a-b]: ZnO Nanorod Arrays grown by Hydrothermal method
APPROCH
Fig 6: Measured and Calculated Device parameters.
IMPACT • •
Fig 1: Typical DSSC Design
Fig 2: Our Proposed DSSC Design
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Our proposed cell design by replacing TiO2 nano-particles with ZnO nanowire arrays is success. This method is economically feasible for a large scale production with low production cost. However, current overall cell efficiency is low. We will study the factors controlling the cell efficiency in detail in future to optimize the cell design at nano level.
REFERENCES: [1] International Energy outlook 2010. (U.S. Energy Information Administration, July 27, 2010 http://www.eia.gov/oiaf/ieo/world.html)