PBDB-T is widely used in the field of organic electronics, particularly in the development of organic solar cells. Its high efficiency in converting sunlight into electricity makes it a key material in the active layer of bulk heterojunction solar cells. The compound’s ability to form a well-organized blend with non-fullerene acceptors enhances charge separation and transport, leading to improved power conversion efficiency. Additionally, PBDB-T is employed in the fabrication of flexible and lightweight photovoltaic devices, offering potential applications in portable electronics and wearable technology. Its stability and processability further make it a promising candidate for large-scale, cost-effective solar energy solutions.