Used in perovskite solar cells as a key component to improve stability and efficiency. The hexylammonium cation helps in forming low-dimensional perovskite structures that are more resistant to moisture and thermal degradation compared to conventional 3D perovskites. This makes the material suitable for developing durable, high-performance photovoltaic devices. It is also explored in light-emitting diodes (LEDs) and photodetectors due to its tunable bandgap and strong luminescence properties. The compound supports solution-based fabrication methods, enabling low-cost, scalable production of flexible optoelectronic devices.