Question

Direct bandgap semiconductors are better suited for solar cell applications than indirect bandgap semiconductors.
True
False
If possible plss explain.

Answer 1

I’ll try to give as simple explanation possible. Mainly because you will get much better and more complex explanations from other people later.

In direct bandgap semiconductor the electron “rising” from valence band to the conduction band will only change it’s potential (energy).

In indirect bandgap semiconductor the electron “rising” from valence band to the conduction band will change it’s potential (energy) and momentum.

Answer 2

Answer:

Direct band gap semiconductors are better than the indirect band gap semiconductors for solar cell applications, this statement is True.

Explanation:

This is because the wavelength of absorption of a direct band gap semiconductor is much less. So sun’s energy can be absorbed very well. But indirect band gap semiconductors are not possible to do that. This is the application of direct band gap semiconductors.  

Thus direct band gap semiconductors are used in solar cells, solar panels etc. This is of immense importance in achieving non conventional energy.