Used primarily in organic photovoltaic (OPV) devices as an electron acceptor material, especially in polymer solar cells. It offers better energy level alignment compared to traditional fullerene derivatives, leading to higher open-circuit voltage and improved power conversion efficiency. Commonly paired with donor polymers like P3HT in bulk heterojunction solar cells, ICBA enhances device performance and stability. Its application is key in developing efficient, low-cost, and flexible solar energy solutions.