Near Infrared Emissive Tetradentate Coordinated Pt(II) Phosphors and Applications 

Organic light-emitting diodes (OLEDs) are extensively used in various computer monitors, flat-panel displays and solid-state lighting luminaires. Their advantages include high power efficiency, great color tunability, and excellent versatility, enabling flexible devices in diverse sizes and shapes. Growing interest also focus on near-infrared (NIR) emitting OLEDs, as efficient NIR irradiation is essential for communication technologies and serves as an invisible light source for both military and civilian applications. This proposal aims to design and synthesize a series of Pt(II) complexes bearing tetradentate chelate that exhibit bright NIR emission through solid-state aggregation.