This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Photoelectrochemical Hydrogen Cell . Multiple views of NIST's photoelectrochemical hydrogen cell Side schematic shows princial components of the cell Electrodes on the top are titanium toped with platinum An incoming photon generates electron and hole Microscope image shows top of the cell surface with cylinderical electrodes and