Spiro[fluorene-9,9'-xanthene] is widely used in the field of organic electronics due to its unique structural and electronic properties. It serves as a key component in the development of organic light-emitting diodes (OLEDs), where it enhances device efficiency and stability. The compound is also employed in the synthesis of high-performance organic semiconductors, contributing to improved charge transport in electronic devices. Additionally, it finds application in the creation of luminescent materials for sensors and imaging technologies, owing to its excellent photophysical characteristics. Its rigid spiro structure makes it a valuable building block in the design of advanced materials for optoelectronic applications.