Perovskite solar cells are emerging as formidable competitors to traditional silicon-based cells. The biggest challenges faced by researchers are the reproducibility and commercialization of perovskite photovoltaics (PV). Due to the enhanced stability and lowered recombination rate, 2D perovskites are favored over 3D. This study evaluates the efficacy of spray coating versus spin coating, testing variables such as temperature dependence and additives to optimize deposition conditions. The use of surface energy reduction methods improves inherent drawbacks of spray coating, like non-uniform film formation. Furthermore, this research extends to perovskite quantum dots (QDs), investigated for their promising applications as single-photon sources due to their tunable bandgap and excellent band alignment with QDs. Dependencies of quantum dot formation on thermal shock are analyzed, setting the stage for future advancements in quantum dot technology and enhancing our understanding of 2D perovskite and quantum dot integration.