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Polymers in Solar Cells. Joshua Hufford Bryan Orellana Yunchao Li McKay Barnett Sameh Mehrez. http://static.technorati.com/10/04/14/11757/solar-panels.jpg. Polymer Solar Cells. First Generation Single crystal silicon wafers Second Generation Polycrystalline silicon Amorphous silicon.

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polymers in solar cells
Polymers in Solar Cells
  • Joshua Hufford
  • Bryan Orellana
  • Yunchao Li
  • McKay Barnett
  • Sameh Mehrez

http://static.technorati.com/10/04/14/11757/solar-panels.jpg

polymer solar cells
Polymer Solar Cells

First Generation

  • Single crystal silicon wafers

Second Generation

  • Polycrystalline silicon
  • Amorphous silicon

Third Generation

Nanocrystal solar cells

Polymer solar cells

Fourth Generation

Hybrid - inorganic crystals within a polymer matrix

Single Crystal Silicon Wafer

http://www.goldmine-elec-products.com/images/G2243B.jpg

Polycrystalline Silicon

http://en.wikipedia.org/wiki/Solar_cell

state of the art
State-of-the-Art!
  • Use of polymers (i.e. PPV – Polyphenylene Vinylenes) with nanoparticles mixed together to make a single multispectrum layer
  • Inorganic hybrids that are used as the nano particles:
    • CdSe
    • Titania (Titanium oxide)
  • This new form creates a more effective transport for charges
state of the art1
State-of-the-Art!
  • Significant advances in hybrid solar cells have followed the development of elongated nanocrystal rodes and branched nano crystals
    • Increase surface area
    • Decreases resistance
  • Incorporation of larger nanostructures into polymers require optimization of blend morphology using solvent mixtures
    • This makes it easy to potentially make large rolls of thin, flexible polymer solar cells

Mayer, A.

where can you find solar cells
Where can you find Solar Cells?
  • Solar cells have many market opportunities
    • sustainable, reliable, and an economical source of power
  • Solar cells in space:
    • The international space station; four sets of arrays, each one has 250,000 solar cells that can power a small neighborhood.
  • Solar power plants in the Mojave Desert
    • 9 plants provides more power than what Saudi Arabia produces from oil every day
    • Cleaner, and more sustainable compared to oil.

Image taken from www.space.com

where can you find solar cells1
Where can you find Solar Cells?
  • The first solar powered airplane
    • Flew for 26 continuous hours.
    • It was powered by 12,000 solar cells on its carbon fiber wings.
  • Powered solar vehicles
  • Residential roof solar panels.
roadmap where are polymer solar cells going
Roadmap: Where are polymer solar cells going?
  • Converting some of the heat for an overall solar cell composite
  • More efficient and cheaper
  • Based on polymer solar cell and heterojunction technology
roadmap where are polymer solar cells going1
Roadmap: Where are polymer solar cells going?
  • Future advances will rely on new nanocrystals, such as titania, to replace fullerene derivatives.
  • Potential to enhance light absorption and further improve charge transport.
    • Increase efficiency while getting away from all organic solar cell polymers.
conclusion
Conclusion
  • New innovations in polymeric materials and other nanoparticles are allowing for cheaper solar cells
  • Continued research will lead to more efficient cells
  • Cost effective, sustainable, ease of production, long lasting are key traits that make this technology increasingly plausible as a green replacement from present energy resources.
references
References:
  • https://scifinder.cas.org/scifinder/view/scifinder/scifinderExplore.jsf
  • http://en.wikipedia.org/wiki/Solar_cell
  • Mayer, A., S. Scully, B. Hardin, M. Rowell, and M. Mcgehee. "Polymer-based Solar Cells." Materials Today 10.11 (2007): 28-33. Print.
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