Electrodeposition of TiO2 Using Ionic Liquids

Abstract : We report on the electrodeposition of TiO2 upon transparent conducting oxide (ITO) by using a milder electrochemical bath based on room-temperature ionic liquids (1-ethyl-3-methyl imidazolium-bis(trifluoromethylsulfonyl)imide)) and titanium butoxide as a soluble precursor. By taking advantage of oxygen reduction which proceeds about 500 mV before titanium +IV reduction, wellcrystallized thin films of anatase TiO2 are tailored under potentiostatic control at −1.5 V (vs. AgCl/Ag) / 100◦C followed by a rapid post-annealing treatment at 500◦C in air.
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Snehangshu Patra, Stéphanie Bruyere, Pierre-Louis Taberna, Frédéric Sauvage. Electrodeposition of TiO2 Using Ionic Liquids. ECS Electrochemistry Letters, 2014, 3 (6), pp.D16-D18. ⟨10.1149/2.010406eel⟩. ⟨hal-01293647⟩

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