Single-Walled TiO2 Nanotubes: Enhanced Carrier-Transport Properties by TiCl4 Treatment
Journal article published in 2015 by
Imgon Hwang,
Seulgi So,
Mohamed Mokhtar,
Abdelmohsen Alshehri,
Shaeel A. Al Thabaiti 
,
Shaeel A. Al‐Thabaiti,
Anca Mazare,
Patrik Schmuki
,
Shaeel A. Al‐Thabaiti,
Anca Mazare,
Patrik Schmuki
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Abstract
In the present work we report significant enhancement of the photoelectrochemical properties of self-organized TiO2 nanotubes by a combined de-coring of classic nanotubes followed by an appropiate TiCl4-treatment. We show that, except for the expected particle decoration, a key effect of the TiCl4 treatment is that the electron transport characteristics in TiO2 nanotubes can be drastically improved, e.g. we observe an enhancement of up to 70 % in electron transport times.