This document describes an infrared plastic solar cell that uses cadmium selenide (CdSe) nanorods dispersed in a poly(3-hexylthiophene) (P3HT) polymer semiconductor. The nanorods are 7nm in diameter and 60nm in length and are synthesized in a solution containing CdSe. This nanocomposite absorbs infrared light and converts it to electricity. When light is absorbed, electrons are generated and transferred to the aluminum electrode while holes move to the electrode through the plastic, creating a current. This solar cell has advantages over traditional silicon cells in that plastic is cheaper to produce, it can absorb different wavelengths of light, and it can still function on cloudy days. However, it also has limitations

1. Infra red Plastic solar Cell
by
Hadeer Hesham Ali AbdElaziz
hadeerali127@outlook.com

2. Contents
• The sun as energy source
• Solar Energy (Photovoltaics)
• What is solar cell
• Why Nano Technology for solar cell
• Division of sun light
• Composition of the cell
• Synthesis of the nanocomposite
• How it works
• Advantages & Limitation
• Applications
• References
•

3. ● The Sun daily provides about 10 000 times more energy to the Earth than we
consume
● Photovoltaic technology directly converts solar energy into electricity
● No moving parts – no noise – no emissions – long lifetime
● Large industrial potential - cost reductions needed
● Feedstock for PV industry is silicon - the second most abundant element in the
crust of the Earth
The Sun as Energy Source

4. Solar Energy
(Photovoltaics)
Solar Cell
(PV)
Li
gh
t
Electr
icity
Renewable Energy

5. What is solar Cell
● A structure based on crystalline silicon
that converts solar energy directly to DC
electric energy.
● Si because of its abundancy is used for
this solar cell
● It absorbs visible sunlight and transfer
it to the semiconductor material.
● This energy knocks electrons to flow
freely, which results current.

6. ● Metal contacts on the top and bottom of
PV cell draws off the current to use
externally as power

8. Why nanotechnology for solar Cell
● In solar cell it is observed that only 35%
of the sun’s total energy is being used
● The solar cells are not so favorable on
cloudy days
● In order to overcome these
disadvantages we use INFRARED
PLASTIC SOLAR CELL
● Our composite to enhance electrical &
optical properties

9. It uses specially designed nano rods dispersed in polymer to make
the plastic that can detect infrared light
Nanorods diameter 7 nm length 60 nm are manufactured in a
beaker containing CdSe to absorb as much sunlight as possible.
Nanorods are mixed with a plastic semiconductor called p3ht-poly-
(3-hexylthiophene) a transparent electrode is coated with the
mixture of thickness=200 nm
It can produce 0.7V at present
Aluminium coating acts as the back
electrode
Composition of cell

10. based on polymerization :
● 1 mg Pd2(dba)3, 10 mg vinyl terminated P3HT, and 20
mg (DOPO-Br)-functionalized CdSe QDs was loaded in
a reaction via.
● The vial was vacuumed and refilled with Ar.
● Then, 0.08 ml N-methyldicycylohexylamine, 0.06
ml tri-t-butylphosphine THF solution at concentration of
100mg/ml, and 0.5 ml THF were loaded in sequence.
● The reaction mixture was kept stirring under Ar
environment in a 50 °C oil bath for 20 h.
● The final product, was diluted 20 times
Synthesis of P3HT−CdSe
nanocomposites:

12. How it Works
When nanorods absorb light they generate an electron and an
electron-hole
• Electron is collected by aluminium electrode
• The hole is transferred to the plastic and conveyed to the
electrode,creating a current

13. Advantages
• Plastic used in organic solar cells is cheaper in
high volume production
•Band Gap Engineering .
• Better Light collection & better electron transfer
to the electrolyte.
• Absorb different color of different frequency of
light .
• Work in cloudy days .

14. •They are some what expensive.
•They need maintenance and monitoring.
Limitations

15. Applications

16. Video
Plastic solar Cell

17. References
1.Introduction to nanotechnology:Charles P Poole,Frank J Owens
2.Nanomaterials:synthesis,propertiesand applications :Edelstein,
A.S.cammarata
3.Solar energy-fundamentals, design, modeling, applications :G.N.Tiwari
4. Green electronics : M.Sameh.Said
5. Nano-electronics & spintronics : M.Sameh.Said
6. preparation of nano-crystal and nano-composites :Jun Xu, lowa state
university