Important Implications of the Electrochemical Reduction of ITO.


Liu L, Yellinek S, Valdinger I, Donval A, Mandler D. Important Implications of the Electrochemical Reduction of ITO. Electrochim. ActaElectrochimica Acta. 2015;176 :1374 - 1381.

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The electrochem. redn. of indium tin oxide (ITO) on glass is systematically studied. The light absorbance and elec. resistance of ITO increases upon redn. SEM images show that the integrate ITO films dissolve and form particles upon applying neg. potentials. The particles consist of metallic In and Sn, as characterized by XRD and XPS. The redn. of ITO strongly depends on the electrolyte conditions, mainly pH and anions. The onset potential is found to shift neg. as the pH of the electrolyte increases. NO-3 ions significantly inhibit the redn. of ITO, shifting the redn. potential neg. by ∼500 mV as compared with SO2-4, Cl- and Br-. It can also serve as inhibitor by adding very low concn. to the Cl--dominant electrolyte. Also, the electrochem. reduced ITO show excellent nonlinear optical performance, with transmittance tuneable by redn. potential and time. This suggests a promising useful application of the electrochem. redn. of ITO. [on SciFinder(R)]


CAPLUS AN 2015:1306951(Journal; Online Computer File)