PBTTT-C12 is widely used in the development of organic electronic devices due to its excellent semiconducting properties. It is particularly effective in organic field-effect transistors (OFETs), where it enhances charge carrier mobility and device performance. Additionally, it is utilized in organic photovoltaics (OPVs) to improve light absorption and energy conversion efficiency. Its solubility in common organic solvents makes it suitable for solution-processed fabrication techniques, enabling cost-effective and scalable production of flexible and lightweight electronic components. PBTTT-C12 is also explored in sensors and light-emitting diodes (LEDs) due to its tunable electronic properties and stability.