Solar PV or solar photovoltaic is the DC electricity created from the sun. This phenomenon was described first by Albert Einstein in 1905 and awarded with a Nobel Prize for his wonderful discovery. However, the first solar photovoltaic cells were created by Bell Laboratories in 1954. It was adopted by NASA in 1960.


In the early seventies, the PV cells have been used in small electronic devices like calculators and wristwatches. However, materials exhibiting photoelectric properties occur at the