Working together to harvest electricity from the Addis Ababa sunshine!
Working in groups we made dye sensitized photovoltaic cells that we had learned about in the morning. Here Nella and Tom Mallouk (not shown...he was upstairs working with the other half of the school on the theory) from Penn State University in the USA shows us how and then we have to figure out how to do it for ourselves. The cells take sunshine and turn it directly into an electric current that we measured with voltmeters and ohmeters.
They all worked! We then measured their efficiency and power output, before running inside before we got too sunburned.