Data Analysis

Conclusion & Sustainability

In conclusion, we've determined that there is a direct relationship between the wavelength and the voltage emitted, which proves the photoelectric effect, and we also proved the prediction of our receiver LED responding to our transmitter LED experimentally. The project, in its end, successfully met its objectives and goals after overcoming a lot of obstacles and challenges. The first challenge we had was to fix the circuit and change the operational amplifier to display a bigger change between the wavelengths. Another challenge that we faced was that we had initially used a gumdrop LED as the receiver whose colored encasing didn't allow for the light to be transmitted through.

 LEDs are known for their efficiency and from our experiment, we've found that LEDs can be used as a receiver and that the energy transmitted to it can be increased by using receiving and transmitting LEDs with similar wavelengths. In the future, this can also be used for light-based communication systems. LEDs also tend to use materials that have a lower carbon footprint than traditional light sources such as aluminum gallium indium phosphide (AlGaInP) and indium gallium nitride (InGaN). Additionally, they are long-lasting and more energy-efficient than fluorescent lamps and tungsten-filament light bulbs.

By Tin Htoo, Sean Ruiz, Lynn Aung, Lynn Thant