Publication detail

Comparison of photoelectrochemical performance of anodic single- and double-walled TiO2 nanotube layers

MOTOLA, M. SOPHA, H. KRBAL, M. HROMÁDKO, L. OLMROVÁ ZMRHALOVÁ, Z. PLESCH, G. MACÁK, J.

Original Title

Comparison of photoelectrochemical performance of anodic single- and double-walled TiO2 nanotube layers

Type

journal article in Web of Science

Language

English

Original Abstract

In this work, the photoelectrochemical response of single-walled (SW) and double-walled (DW) TiO2 nanotube (TNT) layers is presented. TNT layers were grown on Ti substrates by anodization in two different ethylene glycol-based electrolytes to obtain ~5 and ~15 μm thick TNT layers. The inner shell of the TNT was quantitatively removed via a mild pre-annealing followed by a selective chemical etching treatment in piranha solution. All TNT layers were investigated for their photoelectrochemical response in the ultraviolet and near visible spectral range. Significantly enhanced photocurrent densities were revealed for the SW-TNT layers. This is ascribed to improved charge carrier separation along the tube walls due to the lack of the C- and F-rich inner shell removed by etching.

Keywords

Titanium dioxide Nanotubes Single-walled Double-walled Photoelectrochemistry

Authors

MOTOLA, M.; SOPHA, H.; KRBAL, M.; HROMÁDKO, L.; OLMROVÁ ZMRHALOVÁ, Z.; PLESCH, G.; MACÁK, J.

Released

1. 12. 2018

ISBN

1388-2481

Periodical

ELECTROCHEMISTRY COMMUNICATIONS

Year of study

97

Number

1

State

United States of America

Pages from

1

Pages to

5

Pages count

5

BibTex

@article{BUT150269,
  author="Martin {Motola} and Hanna Ingrid {Sopha} and Miloš {Krbal} and Luděk {Hromádko} and Zuzana {Olmrová Zmrhalová} and Gustav {Plesch} and Jan {Macák}",
  title="Comparison of photoelectrochemical performance of anodic single- and double-walled TiO2 nanotube layers",
  journal="ELECTROCHEMISTRY COMMUNICATIONS",
  year="2018",
  volume="97",
  number="1",
  pages="1--5",
  doi="10.1016/j.elecom.2018.09.015",
  issn="1388-2481"
}