We report the synthesis of single chain white-light-emitting polyfluorene copolymers containing a novel iridium complex with a β-diketonate unit, bis(2-benzothiazol-2-yl-N-ethylcarbazole)iridium-1,3-bis(p-bromophenyl)1,3-propanedione ((bec)2IrdbmBr), as the red emission unit. The synthesized polyfluorene copolymers containing the carbazole and iridium complex, poly{9,9-bis(4-octyloxyphenyl)fluorene-2,7-diyl-co-(N-hexylcarbazole-3,6-diyl)-co-[bis(2-benzothiazol-2-yl-N-ethylcarbazole)iridium-1,3-bis(p-bromophenyl)propanedione-1,3-diyl]} (PFCzIrbecs), were synthesized via palladium-catalyzed Suzuki coupling reactions. These polymers were found to be thermally stable and readily soluble in common organic solvents. Interestingly, the synthesized polymers, PFCzIrbec 05 and PFCzIrbec 2, exhibited two strong emission bands in both the blue and red spectral regions. Light-emitting devices based on these polymers were fabricated in an ITO/PEDOT:PSS/poly(TPD)/polymers/TPBi/LiF/Al configuration. We obtained white lig...