3-Bromotriphenylamine is primarily used in the field of organic electronics and materials science. It serves as a key intermediate in the synthesis of organic semiconductors, which are essential components in organic light-emitting diodes (OLEDs) and organic field-effect transistors (OFETs). Its incorporation into these materials helps improve charge transport properties, making it valuable for developing efficient electronic devices. Additionally, it is utilized in photoconductive materials and as a building block for creating advanced polymers with specific optoelectronic characteristics. Its role in research and development of novel organic compounds further highlights its significance in advancing technology in display and sensor applications.