'Nano'tubes, Surface Area & NanoSolar Cells
Last updated 11 April 2012, created 11 April 2012, viewed 413
This unit from the U.S. Department of Energy takes students through several introductory lessons designed to gain a better understanding of the 'nano' scale as it relates to the creation of a (dye-sensitized) solar cell (DSSC). The introductory lessons guide students through activities covering volu More…me, surface area and density and exploration of the relationship between these factors. The unit culminates with students building a Gratzel cell, a solar cell employing a layer of nanospheres of TiO2 as the semiconductor and blackberry juice as the light absorber in a non-Si-based solar cell.