Used in advanced luminescent materials for bioimaging due to its strong red emission under near-infrared excitation. Exhibits high stability in aqueous environments, making it suitable for cellular labeling and deep-tissue imaging. Also applied in light-emitting diodes (LEDs) as a dopant to enhance emission efficiency in the near-infrared range. Shows promise in photodynamic therapy owing to its ability to generate reactive oxygen species when exposed to specific wavelengths.