Abstract
The use of nanostructure has mainly been explored as a photoanode; however, lately, they have gained interest in photoelectro chemical applications due to tunable band gaps and long electron lifetimes achieved via structure control. In this work, we have investigated the influence of manganese concentration on the deposit of Mn nanoparticles on CdS nanoparticles as a sensitizing coat in photoelectrochemical applications using titanium dioxide nanotubular arrays prepared through the anodization technique. The manganese nanoparticles were synthesized and electro chemically deposited onto cadmium sulfide/titanium dioxide nanotube. Diverse characterization techniques indicate the successful incorporation of Mn nanoparticles within CdS nanoparticles and TiO2 nanotubes. The effect of manganese concentration on the photocurrent performance was inspected, and the optimal combination was found to be 7 mM of Mn deposited onto CdS /TiO2 nanotube. The addition of Mn nanoparticles to CdS and TiO2 nanotubes was found in order to improve the photoelectrochemical performance by increasing absorption in the visible region.