What can be Learnt from IR Spectroscopy at the Interface

We will here present some examples of the kind of information that can be extracted from IR spectroscopy at the semiconductor/solution interface. 

Vibrational Absorption of Interfacial and Double-layer Species 

Interface species The major motivation for developing in-situ IR spectroscopy at the electrode/electrolyte interface was the need to identify interfacial chemical species. Figs. 6.5 and 6.6 show two representative examples of the use of the technique for such applications. 

The differential technique makes it easy to foUow chemical changes in real time, inasmuch as their evolution is sufficiently slow (typically, time scales from seconds to hours are conveniently accessed), which may be useful for disentangling complex chemical or electrochemical mechanisms. Examples of phenomena investigated through this technique include the etching process of Si sur- 

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