Question: What is photovoltaic effect how one can ensure charge carrier separation in solar cell?

What is a photovoltaic effect in a solar cell?

The photovoltaic effect is a process that generates voltage or electric current in a photovoltaic cell when it is exposed to sunlight. It is this effect that makes solar panels useful, as it is how the cells within the panel convert sunlight to electrical energy.

How one can ensure charge carrier separation in solar cell?

Finally, overall charge separation and collection requires photovoltaic devices to have one built-in asymmetry that ensures that charge carriers with different polarities are collected at different contacts so that a net current flow becomes possible.

What do u mean by photovoltaic effect?

Photovoltaic effect, process in which two dissimilar materials in close contact produce an electrical voltage when struck by light or other radiant energy.

What is photovoltaic effect class 12?

The photovoltaic effect is the creation of a ________________________material upon exposure to light and is a physical and chemical phenomenon. (A) voltage or electric current. … Solar cells produce direct current electricity from sunlight which can be used to power equipment or to recharge a battery.

What are two factors that affect the cost of solar energy?


  • Roof Angle and Roof Type. In solar panel installation, it is important to angle the solar panels so they can get maximum exposure to the sun. …
  • Age Of The Roof. …
  • Structural Issues. …
  • Cost Of Licenses. …
  • Tracking Systems.
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How the generated electron hole carriers are separated?

The carriers are separated by the action of the electric field existing at the p-n junction. If the light-generated minority carrier reaches the p-n junction, it is swept across the junction by the electric field at the junction, where it is now a majority carrier.

Why silicon is used in solar cell?

Silicon is one of the optimum semiconductors that is used for solar cell production because of its superior electronic properties, optical properties, thermal properties and mechanical as well as environmental properties. In addition to its availability, manufactureability, and cost.

What is photovoltaic material?

Materials used in photovoltaic devices are usually silicon (monocrystalline, polycrystalline or amorphous), gallium arsenide, metal chalcogenides and organometallics. Recently, mesoscopic solar cells have made an impact in commercial markets.

What is the importance of photovoltaic effect?

1 Introduction. Solar cells exploit the photovoltaic effect to convert incident light into electricity. They provide clean and renewable energy, which has the potential to reduce our dependence on fossil fuels.