The Role of Lattice Defects on the Optical Properties of TiO2 Nanotube Arrays for Synergistic Water Splitting
Manel Machreki,
Takwa Chouki,
Georgi Tyuliev
et al.
Abstract:In this study, we report a facile one-step chemical method to synthesize reduced titanium dioxide (TiO 2 ) nanotube arrays (NTAs) with point defects. Treatment with NaBH 4 introduces oxygen vacancies (OVs) in the TiO 2 lattice. Chemical analysis and optical studies indicate that the OV density can be significantly increased by changing reduction time treatment, leading to higher optical transmission of the TiO 2 NTAs and retarded carrier recombination in the photoelectrochemical process. A cathodoluminescence … Show more
New sustainable energy technologies are an important current research field, which aim to address the global environmental challenge caused by our excessive reliance on fossil fuels. Underpinning this field is...
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