PBTTT-C14 is widely used in the field of organic electronics due to its excellent semiconducting properties. It is commonly employed in the fabrication of organic field-effect transistors (OFETs), where it provides high charge carrier mobility, making it suitable for flexible and lightweight electronic devices. Additionally, PBTTT-C14 is utilized in organic photovoltaics (OPVs) to enhance the efficiency of solar cells by improving light absorption and charge transport. Its solution-processability allows for cost-effective and scalable manufacturing techniques, such as inkjet printing or spin coating, enabling the development of large-area electronic applications. Furthermore, it is explored in biosensors and wearable electronics due to its compatibility with flexible substrates and potential for integration into various innovative technologies.