Novel fluorine containing polyfluorenes with efficient blue electroluminescence

• DOI: 10.1016/j.polymer.2004.07.072
• Publication Date: 2004-09-17T11:07:40Z
• Authors: Andressa M. Assaka; Paula C. Rodrigues; Alfredo R.M. de O...; Liming Ding; Bin Hu; Frank E. Karasz; Leni Akcelrud
• Keywords: 02 engineering and technology; 0210 nano-technology

Abstract The synthesis, structural characterization, photo and electroluminescence, thermal and electrochemical properties of a new fluorinated fluorene-containing copolymer are described. The copolymer is formed by alternating mers of [2,3,5,6 tetrafluoro-1,4 phenylene] and [9,9′-dihexyl-2,7 fluorene] and emits blue light with low turn on voltages. The EL performance of the fluorinated copolymer was superior to those of the non-fluorinated analog copolymer and of the corresponding poly(9,9′dihexyl-2,7 polyfluorene) homopolymer.