How Do You Make A Solar Cell Out Of Household Materials?
A solar cell is a device that converts light from the sun into electricity. A commercial solar cell is made from silicon and is highly efficient but also expensive. You can make an inefficient solar cell at home that demonstrates the photoelectric effect with relatively inexpensive materials. This project requires some common household items and a few specific purchases. Cut two sheets of copper approximately the size of the large burner on a stove. Wash the copper sheets thoroughly with soap and water to remove any oil. Sand the copper sheets to remove any copper sulfides or other corrosion. Heat one copper sheet on the largest burner at the highest heat setting. Allow the sheet to turn completely black and continue heating it for another half-hour to build a thick coat of cupric oxide. Turn off the burner and allow the sheet to cool for about 20 minutes by leaving it on the burner. Remove most of the cupric oxide by scrubbing gently, but don’t remove the red layer. Cut off the top of
