Abstract
We report here the effect of the photoelectrochemical photocurrent switching (PEPS) observed on highly-ordered pristine anodized Ti/TiO2 for the first time. At negative potential bias, blue irradiation gives cathodic photocurrent, whereas anodic photocurrent was observed for ultraviolet irradiation. We believe this phenomenon is due to the electron pathway provided by Ti3+ defect states.
Highlights
We report here the effect of the photoelectrochemical photocurrent switching (PEPS) observed on highlyordered pristine anodized Ti/TiO2 for the first time
Blue irradiation gives cathodic photocurrent, whereas anodic photocurrent was observed for ultraviolet irradiation
Due to stable and robust photoactivity, titania is widely used in the design of solar cells[3] and photocatalytic applications.[4]
Summary
Photoelectrochemical photocurrent switching effect on a pristine anodized Ti/TiO2 system as a platform for chemical logic devices† We report here the effect of the photoelectrochemical photocurrent switching (PEPS) observed on highlyordered pristine anodized Ti/TiO2 for the first time. Photoelectrodes using light and potential as inputs and yielding photocurrents are being considered as the basis for logic devices.
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