Used as a fluorescent probe in bioimaging due to its strong emission and high selectivity for specific cellular components. Its structure allows for efficient two-photon absorption, making it suitable for deep-tissue imaging with reduced background noise. Also employed in organic electronics, particularly in the development of semiconducting materials for OLEDs and photovoltaic devices, where it contributes to improved charge transport and light emission properties. The selenium atom enhances intermolecular interactions, aiding in the formation of stable thin films. Additionally, it serves as a building block in conjugated polymers for sensors detecting environmental pollutants or biological molecules.