A seven segment display is produced by the techniques developed in this thesis (Figure 6.1). The water soluble conductive polymer PEDOT (Poly(3,4-ethylenedioxythiophene)) is printed on the flexible substrate PET (Polyethylene terephthalate) as electric circuits and the conductive layer. The EC material FeMEPE was deposited precisely onto the printed PEDOT thin films that it cover the printed conductive layer perfectly. In this device, the metallo-supramolecular polymer can switch between bleached and coloured as those coated on ITO-PEN. The color change of this EC material can still be observed due to the high contrast of MLCT effect even though the similar color that PEDOT and FeMEPE have. This result provides the possibility of further applications in creating flexible electrochromic display.
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