Why we use GaAs and si …
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Yogita Ingle 6 years, 2 months ago
The reasons may be
a) these materials are preffered because of their lower value of energy gap. SO that they can be activated using solar radiation.
b) their V-I characteristics are similar to a semiconductor.
Solar cell means when exposed to light, can generate and support an electric current without being attached to any external voltage source. And GaAS and Si are the semiconductors and preffered so.
0Thank You