Used as an electron-accepting core in organic semiconductors, particularly in the development of non-fullerene acceptors for organic solar cells. Its rigid, planar structure enhances π-π stacking, improving charge transport and device efficiency. Commonly incorporated into small-molecule or polymer-based photovoltaic materials to tune energy levels and increase absorption in the visible to near-infrared range. Also explored in organic field-effect transistors (OFETs) due to its stability and electron-deficient character, supporting n-type semiconductor behavior.