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\subsection{Photocatalyst}  Artificial photosynthesis has long been a form is one  of study, the most studied biochemical processes,  as devices have been created to mimic the method plants creates use to create  energy. One of the methods of artificial photosynthesis utilizes utilized  a photocatalyst in order to split water into hydrogen and oxygen. In 2014, Kibria’s group published a paper where they utilized GaN nanowires as the catalyst to split water molecules by tuning the surface charge of the nanowire. By attaching rhodium/Cr2O3 nanoparticles upon the nanowire via photodeposition, they observed that the quantum efficiency of water splitting for the photocatalyst was around 50 percent after being exposed to a 300W xenon lamp. Previous methods using InGaN/GaN nanowires had only able to produce an efficiency of 13 percent. \cite{Kibria_2013} This efficiency is was  the highest efficiency that has ever been reported for water splitting under broadband light. \cite{Kibria_2014}