Desired properties for a solar cell

In summary, the reason why elements like Silicon, Germanium, and Gallium can be used to make solar cells while platinum cannot is because platinum is a conductor, not a semiconductor. Semiconductors are needed in solar cells for their ability to convert light into electricity. This is related to the threshold frequency, which determines the minimum energy required for electrons to be released from the material. Sources suggest that platinum does not have a suitable threshold frequency for solar cell use.
  • #1
Shivansh Mathur
39
2
Elements like Silicon, Germanium and Gallium can be used to make solar cells but platinum can not be used.
What is the exact reason? Is it related to threshold frequency?

Tried to search for the answer through many sources, but couldn't get a satisfactory one.
Your views and answers are really appreciated.

Thanks in advance
 
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  • #2
Shivansh Mathur said:
Elements like Silicon, Germanium and Gallium can be used to make solar cells but platinum can not be used.
What is the exact reason? Is it related to threshold frequency?

Tried to search for the answer through many sources, but couldn't get a satisfactory one.
Your views and answers are really appreciated.

Thanks in advance

Welcome to the PF.

Is Platinum a semiconductor or a conductor? :smile:
 
  • #3
It is a conductor. But why do we need semi-conductors?
 
  • #5
Thanks a lot!
 

What are the desired properties for a solar cell?

The desired properties for a solar cell include high efficiency, durability, low cost, flexibility, and scalability.

What is the importance of high efficiency in a solar cell?

High efficiency is important in a solar cell because it determines the amount of sunlight that can be converted into usable electricity. The higher the efficiency, the more electricity can be produced from the same amount of sunlight.

Why is durability important in a solar cell?

Durability is important in a solar cell because it needs to be able to withstand various weather conditions and continue to function effectively over a long period of time. This ensures a longer lifespan and better return on investment.

How does low cost affect the use of solar cells?

Low cost is important in making solar cells more accessible and affordable for widespread use. It also makes them a more competitive option compared to traditional sources of energy.

Why is flexibility and scalability important in solar cells?

Flexibility and scalability allow for solar cells to be integrated into a variety of applications, such as curved surfaces or small devices. It also allows for easy expansion and customization of solar power systems to meet different energy needs.

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