1. Power Generating Solar Paint
Presented by
ABHISHEK.M.HAVANUR
1
KHKabbur institute of engineering
Dharwad
2. Topics to be covered
Introduction
Conventional Solar Cell
Quantum dots
Solar paint
Graph
Photo electrochemical
performance
Comparison
Applications
Challenges
Conclusion
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3. Introduction
Urgent need for new ways of generating electricity
Development of new technology
Low cost solar energy
Paint coatings or Flexible plastic sheets (PET)
Applied to building, vehicle and appliances
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5. Quantum dots
Semiconductor whose excitons are confined in all three spatial
dimensions
Typically have dimensions measured in nanometers
Boosts the energy conversion efficiency
Types of quantum dot solar cells
a. ETA(Extremely thin absorber) cells
b. Sensitizers
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6. Continued….
a) Can be linked
together as
molecules
b) Lattices
c) Attached to a
polymer backbone
d) Incorporated into a
polymer thin film 6
7. How to prepare solar paint
Consists of Cds, CdSe and
TiO2 particles
There are two methods
a. Physical mixing of TiO2 and
CdS in a mixed solvent
b. Pseudo-SILAR(Sequential
Ionic Layer Adsorption and
Reaction) method
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8. A) Tert-butanol and water
as solvent
B) CdS powder and TiO2
powder are slowly
mixed into the solvent
C,D) CdS deposited on
TiO2 after
pseudo-SILAR
process
E,F) Annealed films of
solar paint
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12. Comparison
Conventional solar cell
Not flexible and heavy
Can not respond at low light
levels
Provides power
comparatively at higher cost
Cell made from solar paint
Flexible and very thin
Can even respond at low
light levels
Provides power at low cost
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13. Challenges
Improving the light to energy conversion rate
Applying paint directly on to the roofs of the building
Work still needs to be done to improve the conducting
material
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14. Future Applications
Sweater coated with paint could power a cellphone or other
wireless devices
A hydrogen powered car coated with paint could convert
energy into electricity to continually recharge the battery
Industries can generate their own power just by coating paint
on the building surface
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15. Conclusion
The paint can be made cheaply and in large quantities. If the
efficiency is improved somewhat it will make a real difference in
meeting energy needs in future
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