Synthetic Semiconductor Diamond Electrodes: A Photoelectrochemical Study under Laser Flash Illumination

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Abstract
Photopotential transients, observed upon illumination with nanosecond laser flashes, were recorded for thin‐film chemical‐vapor‐deposition diamond electrodes under open‐circuit conditions. The transients were analyzed using a simple equivalent circuit of the electrodes. Components of the equivalent circuit were determined from the photopotential decay curves. They closely coincide with those measured by the rectangular‐current‐pulse technique.