Build a Solar Cell - Photovoltaic Effect and Photosynthesis - Student Activity Kit
by Flinn Scientific
Item #: AP6916
In the Build a Solar Cell Environmental Science and STEM Laboratory Kit, students build a dye-sensitized solar cell and discover the principles behind its operation. Bring the latest technological developments in solar energy into the lab.
The energy crisis is real! Update your curriculum today and bring the latest technological developments in solar energy research into your classroom. Dye-sensitized solar cells mimic the process that occurs in photosynthesis to harvest sunlight and convert it to electricity. Students build a dye-sensitized solar cell (DSC) and learn about the principles behind its operation. The solar cell consists of conductive glass plates coated with a natural dye and nanocrystalline titanium oxide at the anode, and graphite at the cathode. Light striking the dye surface is absorbed and promotes an electron to a photoexcited state. Electrons migrate through the titanium oxide film and travel through the external circuit to the cathode. The result—electricity from light! The cells may be prepared in assembly-line fashion—plan for two hours to complete the set-up and demonstration. There are two good stopping points if the entire procedure cannot be completed at one time. Includes conductive glass plates, nanocrystalline titanium oxide, dried hibiscus petals, iodine/potassium iodide electrolyte solution, tealight candle, lens paper, ethyl alcohol, dilute nitric acid, and binder clips for the cells.
Complete with enough materials to make four solar cells. A multimeter can be used to measure the electric characteristics of the solar cell and is available separately.