Applications of Photoresist Microelectrodes

In the following sections the electrochemical reactivity of single grains of polycrystalline Ti is explored by using the nl-droplet method. The results from electrochemical measurements and the optical laser techniques from the previous section are combined to yield a band structure model for anodically grown anodic oxide layers. Other applications of this method to study laser induced corrosion, texture dependent photocurrent and corrosion of anodic oxide films are described in Refs. [89,90 and 91]. 

In the potential region from 0 to 3 V S H E the oxygen evolution can be excluded and the anodic current density is purely the oxide formation iox. Thus, the anodic charge ofthe oxide layer formation depends on the texture ofthe underlying Ti. For grain (a), 

20 mV s-1.) The capacitance was measured at the upper formation potential with/= 1030 Hz. The film thickness was measured ellipsometrically [6]. 

For Zr/Zr02 a strong effect of the substrate texture on the oxide properties can be expected. This expectation is based on the fact that the transport number of the 

These parameters can be checked independently by their consistency with macro-scopically determined ones on mechanically polished samples. Mechanical polishing yields an amorphous and therefore isotropic Beilby layer resulting in an averaged isotropic complex refractive index niso. The correlation between niso and the anisotropic parameters is given by the equation  

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