Solar panels work by converting sunlight into electricity through the photovoltaic effect. There are three main types of solar panels: monocrystalline silicon, polycrystalline silicon, and amorphous modules. Solar panels have many applications including providing renewable energy for rural electrification, powering satellites, and use in commercial buildings. However, solar panels also have disadvantages like high costs and inability to generate power at night.

1. SOLAR
PANELS•Nguyễn Thị Thùy
•Vũ Thị Hồng
•Bùi Thúy Nga

2. Overview Principle Application
OUTLINE

3. Overview
History
Conception
Classification

4. •In 1839 Alexandre Edmond Becquerel discovered the
photovoltaic effect which explains how electricity can be
generated from sunlight.
•Around 1883 the first genuine solar cell was built by
Charles Fritts.
•In 1941, the silicon solar cell was invented by Russell Ohl.
•Based on solar cell work of Russell Ohl, solar panels were
made in 1955.
History

5. Conception
•Devices that convert light into electricity
• Solar panel is a collection of solar cells

6. • The more light that
hits a cell, the more
electricity it produces
solar cell
Conception

7. Classification
Based on structure => 3 main types of solar panels
Monocrystalline silicon
Polycrystalline silicon
Amphorphous modules

8. Monocrystalline silicon
(mono-silicon or single silicon)
Monocrystalline, as the name
suggests, is constructed
using one single crystal, cut
from ingots.

9. Monocrystalline silicon
(mono-silicon or single silicon)

10. Polycrystalline silicon
(multicrystalline, multi-silicon, ribbon)
Polycrystalline (or
multicrystalline) modules
are composed of a number
of different crystals.

11. Polycrystalline silicon
(multicrystalline, multi-silicon, ribbon)

12. Amphorphous modules
The manufacture of these
panels is highly automated -
silicon is sprayed onto the
substrate as a gas (called
'vapour deposition')

13. Amphorphous modules

14. Overview Principle Application
OUTLINE

15. Principle

16. How
solar
cells
work

18. Overview Principle Application
OUTLINE

19. Advantages
•A renewable energy
•Clear and non-
polluting

20. •No fuel costs or fuel supply problems
Advantages

21. •They are long lasting sources of energy which
can be used almost anywhere
•Having long life time
•Solar cell technology to generate thousands of
hours of electricity with minimal maintenance.
Advantages

22. Disadvantages
•Solar cells and solar panels are very expensive

23. Disadvantages
•Air pollution and weather can effect the production
of electricity
•Solar power can not be obtained in night time
•Needing large
areas of land to
produce more
efficient power

24. Applications
Rural electrification: the provision of electricity to
rural areas derive important social and economic
benefits.

25. Water pumping Commercial
building system
Applications

26. Photovoltaic solar generators:
provide electrical
power to
satellites in an
orbit
Applications

27. Solar cells are also connected in series in
modules, creating an additive voltage
Applications

28. Applications
Telecommunication systems: radio transceivers on
mountain tops

29. Water pumping Commercial
building system
Applications

30. References
http://www.solarpowerinc.net/page.aspx?pageid=13
http://energyinformative.org/best-solar-panel-
monocrystalline-polycrystalline-thin-film/
http://www.journals.elsevier.com/solar-
energy-materials-and-solar-cells

31. Thank you for your
attention!