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Dye-Sensitized Solar Cells. Presented by: Helen Cuiyun Zhao. Outline. Background of Dye-sensitized Solar Cells (DSSCs) Synthesis of Ruthenium dye-sensitizer Characterization in photo-electrochemistry Development of DSSC Modules 12 Principles of Green Chem. Conclusion.

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Presentation Transcript
dye sensitized solar cells
Dye-Sensitized Solar Cells

Presented by: Helen Cuiyun Zhao

outline
Outline
  • Background of Dye-sensitized Solar Cells (DSSCs)
  • Synthesis of Ruthenium dye-sensitizer
  • Characterization in photo-electrochemistry
  • Development of DSSC Modules
  • 12 Principles of Green Chem.
  • Conclusion
irradiation of the sun
Irradiation of the Sun

Chem. Rev. 2010, 110, 6595–6663

composition of dssc
Composition of DSSC

The DSSC device consists of 4 components:

  • semiconducting electrode
    • n-type TiO2 and p-type NiO
  • Dye-sensitizer
    • Light harvesting and electronic transition
  • Redox mediator
    • I- / I3- or CoII / CoIII complexes
  • Counter electrode
    • Carbon or Pt

Chem. Rev. 2010, 110, 6595–6663

energy levels of dssc
Energy Levels of DSSC

Chem. Rev. 2010, 110, 6595–6663

synthesis
Synthesis

DMF

JK-206

Bpy ligand

RuCl2 dimer CNN ligand

DMF

JK-207

excited state chemistry density functional theory
Excited state chemistry-Density Functional Theory

LUMO +2

LUMO +1

LUMO

HOMO

HOMO +1

JK-206 JK-207

development of dssc
Development of DSSC

 Flexible DSSC Module

Glass-based DSSC Module 

homemade dssc
Homemade DSSC

http://alpha.chem.umb.edu/faculty/rochford/documents/Artificialphotosynthesis-aworkshopinsolarcelldesign.pdf

conclusion
Conclusion
  • DSSCs show the most promising future due to their independence, environmentally friendly, low maintenance, and low cost .
  • A solar energy system can be installed in any location without a connection to a power grid.
  • The initial investment is expensive. Once the use of electricity reaches to a certain point, the solar energy is free.
  • After installation, there is no recurring cost and it can be used for a long time.
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