Welcome toOur Presentation About

Solar Cell

Submitted by

Totan Banik

Overview….# Introduction

# History

# Activation

# Application

# Benefit

# Future

Solar Cell

• A solar cell is an electrical device that converts the energy of light directly into electricity.

• It product electricity

from sun light.

History of Solar Cell• The photovoltaic effect was first

experimentally demonstrated by French physicist Edmond Becquerel, In 1839.

• Albert Einstein explained the

underlying mechanism of light

instigated carrier excitation—

the photoelectric effect—in 1905.

• The first practical photovoltaic

cell was publicly demonstrated on

April 25, 1954 at Bell Laboratories.

From 2002 we can see the

modern solar cell.

Activation

• Photons bombard and penetrate the cell.• They activate electrons, knocking them loose in

both silicon layers.• Some electrons in the bottom layer sling-shot to

the top of the cell.• These electrons flow into metal contacts as

electricity, moving into a circuit throughout a 60-cell module.

• Electrons flow back into the cell via a solid contact layer at the bottom, creating a closed loop or circuit.

Activation

Uses of Solar Cell

• Solar cell is popular to use

home Power service.

Solar cells are very useful in

powering space vehicles such

as satellites.

Uses of Solar Cell

• Solar powered cars, waterbus which are powered by solar cells.

Uses of Solar Cell

• Some modern calculator & cell phone powered by solar cell.

Benefit• It’s environment-friendly.

• It save our fuel cost.

• It is portable .

• Solar energy is renewable.

Future• In future solar cell & solar power will be see

we in every where.

• We will see solar cell electric Note-book.

Conclusion

• Solar cell is very useful, particularly in a time when we are concerned about greenhouse gas emissions from other energy sources.

• It will be make our goal decrease our dependence on fossil fuel