It is a new technology used in solar panel for increase efficiency of solar panel.

1. A
Seminar
On
Carbone Nanotubes Based Solar Panels
Submitted to
Poof.- Bhuvnesh Rathore
Department – Electrical Engineering
Submitted by
Nitin Choudhary
Department- Electrical Engineering

2. -> CONTENT
 Introduction
 Nanotechnology
 History of Nanotechnology
 Application of Nanotechnology
 Carbon Nanotube [CNTs]
 How to make CNTs
 Property of CNTs
 Geometry of CNTs
 Use of CNTs in Solar Panel/Cell
 CNTs in Dye Sensitized Solar Cell [DSSC]
 Working of CNTs based DSSC
 Conclusion
 References

3.  Introduction
 Solar energy is a radiant light and heat form the sun that is covert into
thermal or electrical energy.
 Carbon nanotubes are allotropes of carbon with a cylindrical
nanostructure.
 Carbon nanotubes are sheet of graphene which is rolled in specific and
discrete angles.

4.  Nanotechnology
• The branchof technologythat deals with making structures that are less
then 100nm long . Scientists often build these structure using individual
moleculesof substances
Fullerene (C60)

5.  History of Nanotechnology
→ The first concept was presented in
1959 by the Prof. Dr Richard Phillips
Feynman.
→ When the invention of scanning tunneling microscope in
1981 then first discovered the fullerene (C60) IN 1985.
Dr. R. P. FEYNMAN

6.  Application of nanotechnology.
1. Nanotechnology used in Medical Field.
2. Nanotechnology used in Electronic Device like mobile phone,
laptop etc.
3. Nanotechnology used in Food Packaging.
4. Nanotechnology used in Therapy of “CANCER”
5. Nanotechnology used in Cosmetics.
6. Nanotechnology used in Defence and Security.

7.  Carbon Nanotubes [CNTs]
Carbon nanotubes are tubular form of carbon that can be rolled
into the cylindrical form of ‘GRAPHENE’ sheet. Like this .

8.  How to make CNTs
1. ARC discharge method.
2. Laser Ablation.
3. Chemical Vapour Deposition.
 Property of CNTs.
1. Electrical Property.
2. Transport Property.
3. Mechanical Property.

9.  Geometry of CNTs
Armchair Zig -Zag Chiral
-> There are three type of geometry of CNTs
High in strength Medium in strength Low in strength
200 Gigepascals 100 Gigapascals 20-30 Gigapascals

10.  Use of CNTs in solar cell/panels
1. Single wall carbon nanotubes as light harvesting.
2. Carbon nanotubes composites in the photoactive layer.
3. Carbon nanotubes as a transparent electrode.
4. Carbon nanotubes in dye Sensitized solar cell [DSSC].

11.  CNTs in Dye Sensitized Solar Cell/Panels
→ The simple fabrication process at low production.
→ Increasing the efficiency of dye DSSCs by using CNTs.
→ For examples titanium dioxide [TiO2] nanoparticles have been use as a
working
→ electrode for DSSCs because high efficiency.
→ CNTs are use for absorb the light energy and change into electrical energy.

12.  Working of CNTs Based DSSCs.
→ First photons hit the cell and electrones from the DSSCs are excited and move
further up on their valence band.
→ The exited electrons move into the TiO2.
→ Which has a conduction band lower then the electron is at when excited.
→ The TiO2 is situated on the anode, connected to a cable, and the flow of
electrons creates an energy current.
→ We are now back into the cathode. The electrons have been through the
outside circuit, charging it, and are now going back inside the cell.
→ Electrolyte
3I = I3 + 2e
→ This reaction repeated by every every exited electron.

13.  Conclusion
 The CNTs film was tested for use as a counter electrode for DSSC.
 When use CNTs in DSSC resulting in a power conversion efficiency
of 7.04% and counter electrode was 7.34%.
 We also learn that our method is useful for constructing flexible
DSSCs.
 Overall our approach involving and use CNTs in DSSC at low cost
and for generating electricity.

14.  References.
1. Wang, S. M. Zakeeruddin, P. Comte, I. Exnar and M. Gratzel,J. Am. Chem. Soc. 1991,
353, 737.
2. Wikipedia from Google.
3. By using PPT by Mohammad Safil Bag.(14E2CNNTX3XP704).[RTU-2015].

15. THANK
YOU
EVERY ONE