Abstract: Solar cells represent a primary means of harnessing solar energy and are a significant area of development in renewable energy. In recent years, perovskite solar cells have emerged as a promising alternative, demonstrating significantly enhanced photovoltaic conversion efficiencies and the potential to replace traditional solar technologies such as silicon (Si) and cadmium telluride (CdTe). The fabrication of perovskite solar cell devices typically relies on high-vacuum thermal deposition equipment, which is costly and entails complex manufacturing processes, thereby complicating its incorporation into undergraduate laboratory courses. This paper presents an innovative experiment designed for the “New Energy Materials and Devices” program, focusing on the preparation of inverted planar perovskite solar cells using a full-solution spin-coating method. This approach reduces equipment requirements, simplifies the fabrication process, ensures good reproducibility, and enhances safety. It facilitates a deeper understanding for students regarding the working principles, fundamental processes, and characterization techniques associated with solar cells.

Key words: Full-solution spin-coating method, Perovskite, Inverted solar cells, Innovative experimental design