Abstract:TaON and Ta 3 N 5 are considered promising materials for photocatalytic and photoelectrochemical water splitting. In contrast, their counterpart Ta 2 O 5 does not exhibit good photocatalytic performance. This may be explained with the different charge carrier transport mechanisms in these materials, which are not well understood yet. Herein, we investigate the charge transport properties in Ta 2 O 5 , TaON, and Ta 3 N 5 by polaron hopping and bandlike models. First, the polaron binding energies were calculated… Show more
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