Senthilkumar, M. and Mathiyarasu, J. and Joseph, J. and Phani, K.L.N. and Yegnaraman, V. (2008) Electrochemical instability of indium tin oxide (ITO) glass in acidic pH range during cathodic polarization. Materials Chemistry and Physics, 108 (2-3). pp. 403-407. ISSN 0254-0584

PDF Restricted to Registered users only Download (1613Kb) | Request a copy

Abstract

Indium tin oxide (ITO) glass substrates are widely used in electrochemical devices and as substrates for in situ spectro-electrochemical experiments owing to their interesting optical, electrical and electrochemical properties. In this work, we found ITO surfaces to undergo substantial changes in their properties on potentiodynamic stresses in the acidic pH range. The surface changes occurring during cathodic cycling of ITOwere characterized by redox couples in cyclic voltammetry, and the resultant surfaces examined by scanning electron microscopy (SEM), atomic force microscopy (AFM), optical transmittance measurements, X-ray diffraction (XRD) and the compositional changes by X-ray fluorescence spectroscopy (XRF). The studies of electrical, optical and structural properties of ITO during cathodic cycling in the acidic pH range clearly point to a set of conditions that help retaining the stability of ITO substrates intact for electrochemical applications.

Item Type:	Article
Uncontrolled Keywords:	Indium tin oxide; Cathodic instability; Thin film; Electrodes; Voltammetry
Subjects:	Electrodics and Electrocatalysis
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	31 Mar 2012 10:48
Last Modified:	31 Mar 2012 10:48
URI:	http://cecri.csircentral.net/id/eprint/416

Actions (login required)

View Item