Performance of ITO based devices is closely related to the quality of ITO. As such, the increasing global use of ITO based devices coupled with the widely documented ITO quality variability has led to a need for reliable and rapid ITO characterization methods. One key to the variability of ITO quality could lie in the chemical type and form of the surface oxide groups. A discussion of how the chemistry of surface oxides can be utilized to give some insight into the quality of the ITO will be presented. Conditions are established under which strong binding of phosphate modified ruthenium polypyridyl complexes coupled with the electrochemistry of Ru (II)/ Ru (III) redox couple are utilized to report on the relative amounts of available surface reactive oxide groups on ITO. As an example two different batches of ITO were distinguished from each other.
Back to Analytical Chemistry I (General Session)
Back to The 56th Southeast Regional Meeting 2004 (November 10-13, 2004)