Dye sensitized solar cells
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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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Dye-Sensitized Solar Cells

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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


Dye sensitizers

Dye-sensitizers


Mechanism

Mechanism


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


Light harvesting uv vis spectroscopy

Light Harvesting— UV-vis spectroscopy


Excited state chemistry density functional theory

Excited state chemistry-Density Functional Theory

LUMO +2

LUMO +1

LUMO

HOMO

HOMO +1

JK-206 JK-207


Electrochemistry

Electrochemistry


Validation of dssc

Validation of DSSC


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


12 principles of green chem

12 Principles of Green Chem.


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.


Dye sensitized solar cells

Thank You!


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