Determination of Rate Constants for dark current reduction at Semiconductor electrodes using ZnO Single-Crystal microelectrodes

Article Abstract:

The effective reaction velocity for dark reduction of ferrocenium acceptors by electrons from the semiconductor conduction band is determined by using a method based on microelectrodes of ZnO single crystals. Many theoretical models for steady-state voltammetry at semiconductorelectrodes are developed and measurement techniques are explored, in which the extrapolation method is seen to be insensitive to nonideal behavior in the reduction reaction whereas the microelectrode method is not.

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Photochronocoulometric measurement of the coverage of surface-bound dyes on titanium dioxide crystals surfaces

Article Abstract:

The photochronocoulometric method is used to measure surface coverage of the dyes adsorbed onto atomically flat single-crystal Ti[O.sub.2] substrates. The surface-bound dyes are irreversibly oxidized by exposure to a light pulse with the n-type oxide semiconductor electrode held in depletion. The sublinear response of the thiacyanine dye is discussed in terms of the more complex surface chemistry that is known for this family of sensitizing dyes.

Titanium dioxide, Surface chemistry, Chemical properties, Diodes, Semiconductor, Semiconductor diodes

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Electrochemical growth of epitaxial Eosin/ZnO hybrid films

Article Abstract:

The structural relationship with single crystalline GaN and the quality of epitaxial Zinc Oxide(ZnO) is studied. It is shown that the in-plane misorientation increases significantly with the dye loading or negative potential.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Gallium Compounds, Structure

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