Photoelectrochemical splitting of water at nanocrystalline n-Fe2O3 thin film electrodes

Article Abstract:

A spray-pyrolitic method was used to synthesize semiconducting nanocrystalline thin films of n-Fe2O3. Photoelectrochemical splitting of water to hydrogen and oxygen gases were the assigned uses of these films. The spray time was the factor on which the rates of photoelectrochemical splitting of water at these thin-film electrodes were found dependent. The optimum condition of substrate temperature at 350 degrees C was used to obtain the maximum photocurrent density of 3.7 mA cm-2 at 0.7 V/saturated calomel electrode.

Electric properties, Thin films, Semiconductor films

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Photoelectrochemical studies of CdS nanoparticle-modified electrodes

Article Abstract:

A study was conducted to analyze the kinetics of charge transfer at an electrode modified with a submonolayer of CdS nanoparticles. Intensity modulated photoelectrochemical spectroscopy was utilized to carry out the analysis. A model of charge transfer from nanoparticle-modified electrodes was developed. Experimental results indicated that the nanosized particles support bulk optical characteristics.

Nanotechnology, Particles, Particulate matter, Charge transfer

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