Question

The solar cell directly converts light energy into electrical energy by photovoltaic process, Solar photovoltaic technology thus may be able to meet the world's ever-growing demand for olectricity. Which amongst the following principles of green chemistry do you think is employed in the above example?
Atom economy
Use of catalyst
Renewable feedstock
Designing safer chemicals​

Answer 1

Answer:

solar cell, also called photovoltaic cell, any device that directly converts the energy of light into electrical energy through the photovoltaic effect. The overwhelming majority of solar cells are fabricated from silicon—with increasing efficiency and lowering cost as the materials range from amorphous (noncrystalline) to polycrystalline to crystalline (single crystal) silicon forms. Unlike batteries or fuel cells, solar cells do not utilize chemical reactions or require fuel to produce electric power, and, unlike electric generators, they do not have any moving parts.