In our science class we were asked to follow the procedures of an experiment, which is how does a solar cell work? The goal of this experiment to determine the amount of voltage generated by photovoltaic effect in silicon solar cell, by measuring the intensity vs. distance.

There are certain equipment needed in order to proceed in this experiment. Some of the materials we used were one solar cell, one voltage probe, one NXT adapter, NXT with light sensor, one light source, ruler and finally colored film filters.

Below I am going to demonstrate the procedures that we followed to accomplish our experiment.

1. Take out solar cell, and hold a flashlight.
2. Measure distance between flashlight and solar cell.
3. More than one distance needed to measure the distance from the flashlight and the solar cell.
4. Graph voltage of a function of distance
5. Different color filters to block certain wave lengths
6. Try different filters to block flashlight, in order to measure the voltage.
7. After measuring the distance of the flashlight from the solar cell, calculate the average of each distance.

Looking at the results above, as we can see as the distance increases the voltage (intensity) decreases

In conclusion, looking at the results above, the voltage was higher with color than without color, we can notice that the lighter the filter color, the higher the voltage.