of BACl and LiTB in a methanol-water (2:1 v/v) mixture. The resulting precipitates were filtered, washed and recrystallised from acetone. For comparative studies, a PEDOT:PSS ink (1.1% in H2O, surfactant-free, high-conductivity grade) was purchased from Sigma-Aldrich. Interfacial electrosynthesis at a polarised aqueous|organic interface. Interfacial electrosynthesis was carried out at an ITIES formed between an acidic aqueous solution, containing 0.2 M H2SO4 electrolyte and 2 mM Ce(SO4)2 as the oxidant, and an organic TFT solution, containing 5 mM BATB electrolyte and 5 mM EDOT as the monomer (see Fig. ).