Near-infrared electroluminescent diodes based on copper hexadeca...

We demonstrate the near-infrared (NIR) organic light-emitting devices (OLEDs) based on copper hexadecafluorophthalocyanine (CuPcF16 doped into 2,2,2”-(1,3,5-benzenetriyl)tris-[1-phenyl-1H-benzimidazole] (TPBI). The device structure is ITO/ NPB/ TPBI:CuPcF16/BCP/Alq3/Al. Room-temperature electroluminescence is observed at about 1106 nm due to transitions from the first excited triplet state to the ground state (T1-S0) of CuPcF16. The result indicates that Forster and Dexter energy transfers play