Perylene-3-boronic acid is widely used in organic electronics and optoelectronics due to its excellent photophysical properties. It serves as a key building block in the synthesis of organic semiconductors, enabling the development of high-performance materials for organic light-emitting diodes (OLEDs) and organic photovoltaic (OPV) devices. Its boronic acid functional group allows for efficient cross-coupling reactions, facilitating the creation of conjugated polymers and small molecules with tailored electronic properties. Additionally, it is utilized in the fabrication of fluorescent sensors and probes, leveraging its strong fluorescence and sensitivity to environmental changes for detecting specific analytes in chemical and biological systems.