The industrial generation of ammonia feedstock through the reduction of dinitrogen is a cornerstone of modern chemical industry. Current methods to produce ammonia using the Haber-Bosch process generate a very large carbon footprint due to sourcing hydrogen gas from fossil fuels as well as from the large energy input required to pressurize and heat the reactant gases. An alternative approach that can source hydrogen from sustainable sources such as water while reducing the overall energy burden by proceeding under milder conditions is direly needed. A possible approach to improve efficiency and utilize alternate hydrogen sources is to use a photocatalyst that can split water and dinitrogen, but currently studied photocatalysts cannot compete with the Haber and Bosch process at scale. To realize the potential photocatalysts can have on the future of industrial ammonia production, much more work will need to be done to understand the fundamental underlying physics to improve design rationale. A polaron, the interaction between holes or electrons with phonons, is a newly studied phenomenon that is known to reduce charge carrier mobility and therefore the photocurrent of a photocatalyst. Herein lies a study on the effect small polarons, which are polarons confined to a single unit cell, have on the photocurrent of a Bi3FeMo2O12 thin film. The polaron phenomenon was characterized using UV-Vis as well as IPCE. A DFT study is also included investigating the lattice sites a polaron will likely form in order to guide future material design.