Organic semiconductor devices are attracting much attention as a practical candidate to meet such requirements because of their simple and low-cost production processes, low environmental burden, as well as for their unique function of flexibility. The scope of our research group ranges from basic scientific studies on materials chemistry to its opto-electronic device applications.
In recent years, perovskite solar cells (PSCs) have attracted significant interest from both academia and industry owing to their high-power conversion efficiency approaching that of commercialized silicon solar cells. Currently, one demand for the commercialization of PSCs is the development of a scalable fabrication process for mass production of large-area PSC modules. Perhaps due to a relatively cost-effective setup and tunable fabrication processes, the vast majority of research efforts have been dedicated to the development of solution-based scalable processes. Comparatively, vacuum thermal evaporation processes have not been studied in-depth, regardless of their advantages in reproducibility, scalability, extendable applications, safety, and toxicity.