[tex] \bf \huge\blue{ANSWER}[/tex]
 Researchers from the TU Delft and AMOLF have built an efficient and stable photo-electrode that absorbs light and directly decomposes water into hydrogen and oxygen. Silicon wafers are used for the light-absorbing material, so that the system is cheap as well.
[tex] \bf \huge \purple{THANK \: YOU}[/tex]
