Semiconductor cartridge

iss040e139205 (9/10/2014) ---Photographic documentation aboard the International Space Station (ISS) of the removal of an Alloy Semiconductor cartridge for return on a future flight. The Alloy Semiconductor investigation aims to develop a clear understanding of how semiconductor materials grow and crystallize in microgravity. The materials studied are also known to be useful as devices which convert heat into electricity (thermoelectrics).