title: Highly efficient green organic light-emitting diodes containing luminescent three-coordinate copper(I) complexes.
abstract: A series of highly emissive three-coordinate copper(I) complexes, (dtpb)Cu(I)X [X = Cl (1), Br (2), I (3); dtpb =1,2-bis(o-ditolylphosphino)benzene], were synthesized and investigated in prototype organic light-emitting diodes (OLEDs). 1-3 showed excellent photoluminescent performance in both degassed dichloromethane solutions [quantum yield (Φ) = 0.43-0.60; lifetime (τ) = 4.9-6.5 μs] and amorphous films (Φ = 0.57-0.71; τ = 3.2-6.1 μs). Conventional OLEDs containing 2 in the emitting layer exhibited bright green luminescence with a current efficiency of 65.3 cd/A and a maximum external quantum efficiency of 21.3%.
authors: Luminescent Materials Laboratory, RIKEN (The Institute of Physical & Chemical Research), Hirosawa 2-1, Wako-Shi 351-0198, Japan.
authors: Masashi
authors: M
authors: Hashimoto
authors: Satoshi
authors: S
authors: Igawa
authors: Masataka
authors: M
authors: Yashima
authors: Isao
authors: I
authors: Kawata
authors: Mikio
authors: M
authors: Hoshino
authors: Masahisa
authors: M
authors: Osawa