
8-Hydroxyquinolinolato-lithium (Liq) is an organometallic salt of 8-hydroxyquinoline appearing as a light yellow powder with a melting point of 366-368℃. Coupled with aluminum, it is a widely used electron injection layer (EIL) material in organic electronic devices, particularly OLEDs, where only a thin 1-2 nm layer enables efficient electron injection from the cathode. in water. In acidic solutions, it is colorless, while in basic solutions, it turns pink to purple.