Perylene-3-carboxylic acid is widely used in the field of organic electronics due to its excellent photoconductive properties. It serves as a key component in the development of organic light-emitting diodes (OLEDs) and photovoltaic cells, enhancing their efficiency and stability. In dye-sensitized solar cells, it acts as a sensitizer, improving light absorption and energy conversion. Additionally, it is employed in the synthesis of advanced pigments and dyes, offering high color fastness and durability for industrial applications. Its fluorescent properties also make it valuable in bioimaging and as a molecular probe in biochemical research.