This week we did an experiment with a solar lab cell. We looked at the different measurements of voltage between the front and back of a solar cell, as well as adjusting the light with different color swatches. We used a ruler to measure the distance of the light to the solar lab cell and measured the voltage produced by LabView. First we started at a distance of zero, with the light directly on the cell. Light intensity is the amount of energy of light. Voltage is the amount of energy, per charge, required to move the charge through the circuit. The stronger the intensity, the more photons produced. A larger amount of photons means a greater current flow and greater voltage. The further away we moved the light from the cell, there was less light intensity and lower voltage. The color swatches affected the cell in a similar way. We used three different color swatches, blue, pink and teal. All swatches were held right on top of the cell. Pink had the highest light intensity, followed by blue and teal with the lowest light intensity. Below is the tables and graphs of our results.
The post was very insightful for someone who had no idea what solar energy was about. It is common sense to know that the farther away light is from an object, the less intensity there will be. The pictures also give a great visual for someone to get a different perspective of solar energy.
The visual aid of the pictures and the clear description showcases the correlation between voltage and light intensity on the solar cell. The more photons, the more light intensity is backed up and clarified in this blog and allows the outsider to grasp the learning prospects in this experiment.
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