Perovskite Tandem Solar Cell Layout for Overlap and Short-Circuit Isolation

The patent applies preliminary action by forming the first electrode pattern on the substrate before forming the perovskite compound layer. This allows the electrode positions to be predetermined and ensures proper alignment without requiring complex post-processing steps. The conductive adhesive is also applied in advance to define the exact positioning areas, simplifying the overall manufacturing process while maintaining high photoelectric conversion efficiency.

The patent extracts the electrical isolation function into a dedicated insulating layer that is formed between the overlapping regions of adjacent solar cells. This insulating layer is specifically positioned to prevent electrical short circuits while allowing the solar cells to overlap for maximized light reception. The conductive adhesive is also strategically applied only in non-overlapping areas, further ensuring electrical isolation between adjacent cells.

The patent forms the first electrode pattern and conductive adhesive layers before depositing the perovskite compound layer and subsequent transport layers. This preliminary establishment of reference patterns ensures that all subsequent layers can be aligned relative to these pre-formed structures, reducing the cumulative alignment errors that would occur if each layer were positioned independently. The method thus enhances photoelectric conversion performance while managing manufacturing precision requirements.