Tetrathiafulvalene is widely used in the field of organic electronics due to its excellent electron-donating properties. It serves as a key component in the development of organic conductors and superconductors, particularly in charge-transfer complexes. This compound is instrumental in creating materials for molecular electronics, such as organic field-effect transistors (OFETs) and photovoltaic devices. Additionally, it plays a significant role in the synthesis of organic metals and in the study of low-dimensional electronic systems. Its ability to form stable radical cations makes it valuable in the design of redox-active molecules for sensors and switches. Tetrathiafulvalene derivatives are also explored in supramolecular chemistry for constructing complex architectures and in the development of molecular machines.