The Effect of Optical Filters on the Output Power and Efficiency of the Silicon Solar Cell

Abstract

In this work solar cell was subjected to light source (Lamp) Power was (100 w) and different optical filters with different colors, different wavelength with the same surface area, the solar cell was fabricated monocrystalline with surface area of m², Open-circuit volte 13.5V Short circuit current 0.5A, maximum power 3 w voltage at p_max 9V different optical filters such as Red orange yellow green blue and violet was put in front of light source. The optical filters passed one color to transmission to obtain of solar cell I-V characteristics, The results of output power and efficiency of the solar cell was compared with and without filter, the voltages, current and power variation of the module with different filters are presented , due to filters the solar cell power was significantly reduced in comparison with the solar cell without filters, greater amount of current was generated when light of a longer wavelength fell upon the solar cell, However  the wavelengths of violet and orange light did not follow the trend, this signifies that a relationship between wavelength and current may not be completely linear, outside factors may have also influenced the result, we assumed that blue light shining on a solar cell would give off the higher volt reading because it has the shortest wavelength and the highest energy, but it was actually the lowest.