Used in organic solar cells as a light-absorbing semiconductor material, enabling conversion of sunlight into electricity. Commonly applied in bulk heterojunction photovoltaic devices due to its strong absorption in the visible range and good charge transport properties. Also employed in organic field-effect transistors (OFETs) for flexible electronics because of its high hole mobility and solution-processability. Suitable for printable electronics and low-cost, large-area devices. Often blended with electron-accepting materials like PCBM to enhance device performance.