Ultrathin Film Electrodeposition of Conjugated Polymers on Conducting Surfaces
The class of π-conjugated polymers as solid state materials has been investigated ranging from its use as electrically conducting polymers to electroluminescent (EL) and laser-active materials.1 Synthesis using mainly aromatic and heteroaromatic polymer structures has been investigated.2 In particular, the study of polyfluorenes and its derivatives are of recent interest as photoactive fluorescent and laser-generating materials.3, 18 The systematic synthesis of microstructured polyfluorene materials with fluoren-2,7-diyl units either by Pd4 or Ni-catalyzed 5 coupling of 2,7-dibromofluorenes has found applications in the fabrication of blue polymer light emitting diode (PLED) devices. The chemical oxidation of fluorenes with FeCl3 6 or electrochemical oxidation of fluorenes has also been reported.7 Substitution on the 9-fluorenyl position enhances the solubility and processability of the resulting polyfluorene polymers.8
KeywordsPrecursor Polymer Ultrathin Film Polymer Light Emit Diode Carbazole Group Methylene Chloride Solution
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