ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applications

Liana Movsesyan (Corresponding Author), Albert Wouter Maijenburg, Noel Goethals, Wilfried Sigle, Anne Spende, Florent Yang, Bernhard Kaiser, Wolfram Jaegermann, Sun-Young Park, Guido Mul, Christina Trautmann, Maria Eugenia Toimil-Molares (Corresponding Author)

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)
36 Downloads (Pure)

Abstract

In this work, the fabrication of zinc oxide (ZnO) nanowire networks is presented. By combining ion-track technology, electrochemical deposition, and atomic layer deposition, hierarchical and self-supporting three-dimensional (3D) networks of pure ZnO- and TiO2-coated ZnO nanowires were synthesized. Analysis by means of high-resolution transmission electron microscopy revealed a highly crystalline structure of the electrodeposited ZnO wires and the anatase phase of the TiO2 coating. In photoelectrochemical measurements, the ZnO and ZnO/TiO2 nanowire networks, used as anodes, generated higher photocurrents compared to those produced by their film counterparts. The ZnO/TiO2 nanowire network exhibited the highest photocurrents. However, the protection by the TiO2 coatings against chemical corrosion still needs improvement. The one-dimensionality of the nanowires and the large electrolyte-accessible area make these 3D networks promising photoelectrodes, due to the improved transport properties of photogenerated charge carriers and faster redox reactions at the surface. Moreover, they can find further applications in e.g., sensing, catalytical, and piezoelectric devices.
Original languageEnglish
Article number693
Number of pages14
JournalNanomaterials
Volume8
Issue number9
DOIs
Publication statusPublished - 6 Sep 2018

Fingerprint

Zinc Oxide
Zinc oxide
Nanowires
Photocurrents
Piezoelectric devices
Coatings
Atomic layer deposition
Redox reactions
High resolution transmission electron microscopy
Charge carriers
Transport properties
Titanium dioxide
Electrolytes
Anodes
Wire
Ions
Corrosion
Crystalline materials
Fabrication

Keywords

  • Etched ion-track membrane
  • water splitting
  • Photoelectrochemical applications
  • TiO2
  • ZnO
  • Core-shell nanowires
  • Nanowire network
  • Electrodeposition
  • Water splitting
  • TiO

Cite this

Movsesyan, L., Maijenburg, A. W., Goethals, N., Sigle, W., Spende, A., Yang, F., ... Toimil-Molares, M. E. (2018). ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applications. Nanomaterials, 8(9), [693]. https://doi.org/10.3390/nano8090693
Movsesyan, Liana ; Maijenburg, Albert Wouter ; Goethals, Noel ; Sigle, Wilfried ; Spende, Anne ; Yang, Florent ; Kaiser, Bernhard ; Jaegermann, Wolfram ; Park, Sun-Young ; Mul, Guido ; Trautmann, Christina ; Toimil-Molares, Maria Eugenia. / ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applications. In: Nanomaterials. 2018 ; Vol. 8, No. 9.
@article{4affb2b1c9f84dc29c3119c8337ce307,
title = "ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applications",
abstract = "In this work, the fabrication of zinc oxide (ZnO) nanowire networks is presented. By combining ion-track technology, electrochemical deposition, and atomic layer deposition, hierarchical and self-supporting three-dimensional (3D) networks of pure ZnO- and TiO2-coated ZnO nanowires were synthesized. Analysis by means of high-resolution transmission electron microscopy revealed a highly crystalline structure of the electrodeposited ZnO wires and the anatase phase of the TiO2 coating. In photoelectrochemical measurements, the ZnO and ZnO/TiO2 nanowire networks, used as anodes, generated higher photocurrents compared to those produced by their film counterparts. The ZnO/TiO2 nanowire network exhibited the highest photocurrents. However, the protection by the TiO2 coatings against chemical corrosion still needs improvement. The one-dimensionality of the nanowires and the large electrolyte-accessible area make these 3D networks promising photoelectrodes, due to the improved transport properties of photogenerated charge carriers and faster redox reactions at the surface. Moreover, they can find further applications in e.g., sensing, catalytical, and piezoelectric devices.",
keywords = "Etched ion-track membrane, water splitting, Photoelectrochemical applications, TiO2, ZnO, Core-shell nanowires, Nanowire network, Electrodeposition, Water splitting, TiO",
author = "Liana Movsesyan and Maijenburg, {Albert Wouter} and Noel Goethals and Wilfried Sigle and Anne Spende and Florent Yang and Bernhard Kaiser and Wolfram Jaegermann and Sun-Young Park and Guido Mul and Christina Trautmann and Toimil-Molares, {Maria Eugenia}",
year = "2018",
month = "9",
day = "6",
doi = "10.3390/nano8090693",
language = "English",
volume = "8",
journal = "Nanomaterials",
issn = "2079-4991",
publisher = "Multidisciplinary Digital Publishing Institute",
number = "9",

}

Movsesyan, L, Maijenburg, AW, Goethals, N, Sigle, W, Spende, A, Yang, F, Kaiser, B, Jaegermann, W, Park, S-Y, Mul, G, Trautmann, C & Toimil-Molares, ME 2018, 'ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applications' Nanomaterials, vol. 8, no. 9, 693. https://doi.org/10.3390/nano8090693

ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applications. / Movsesyan, Liana (Corresponding Author); Maijenburg, Albert Wouter; Goethals, Noel; Sigle, Wilfried; Spende, Anne; Yang, Florent; Kaiser, Bernhard; Jaegermann, Wolfram; Park, Sun-Young; Mul, Guido ; Trautmann, Christina; Toimil-Molares, Maria Eugenia (Corresponding Author).

In: Nanomaterials, Vol. 8, No. 9, 693, 06.09.2018.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applications

AU - Movsesyan, Liana

AU - Maijenburg, Albert Wouter

AU - Goethals, Noel

AU - Sigle, Wilfried

AU - Spende, Anne

AU - Yang, Florent

AU - Kaiser, Bernhard

AU - Jaegermann, Wolfram

AU - Park, Sun-Young

AU - Mul, Guido

AU - Trautmann, Christina

AU - Toimil-Molares, Maria Eugenia

PY - 2018/9/6

Y1 - 2018/9/6

N2 - In this work, the fabrication of zinc oxide (ZnO) nanowire networks is presented. By combining ion-track technology, electrochemical deposition, and atomic layer deposition, hierarchical and self-supporting three-dimensional (3D) networks of pure ZnO- and TiO2-coated ZnO nanowires were synthesized. Analysis by means of high-resolution transmission electron microscopy revealed a highly crystalline structure of the electrodeposited ZnO wires and the anatase phase of the TiO2 coating. In photoelectrochemical measurements, the ZnO and ZnO/TiO2 nanowire networks, used as anodes, generated higher photocurrents compared to those produced by their film counterparts. The ZnO/TiO2 nanowire network exhibited the highest photocurrents. However, the protection by the TiO2 coatings against chemical corrosion still needs improvement. The one-dimensionality of the nanowires and the large electrolyte-accessible area make these 3D networks promising photoelectrodes, due to the improved transport properties of photogenerated charge carriers and faster redox reactions at the surface. Moreover, they can find further applications in e.g., sensing, catalytical, and piezoelectric devices.

AB - In this work, the fabrication of zinc oxide (ZnO) nanowire networks is presented. By combining ion-track technology, electrochemical deposition, and atomic layer deposition, hierarchical and self-supporting three-dimensional (3D) networks of pure ZnO- and TiO2-coated ZnO nanowires were synthesized. Analysis by means of high-resolution transmission electron microscopy revealed a highly crystalline structure of the electrodeposited ZnO wires and the anatase phase of the TiO2 coating. In photoelectrochemical measurements, the ZnO and ZnO/TiO2 nanowire networks, used as anodes, generated higher photocurrents compared to those produced by their film counterparts. The ZnO/TiO2 nanowire network exhibited the highest photocurrents. However, the protection by the TiO2 coatings against chemical corrosion still needs improvement. The one-dimensionality of the nanowires and the large electrolyte-accessible area make these 3D networks promising photoelectrodes, due to the improved transport properties of photogenerated charge carriers and faster redox reactions at the surface. Moreover, they can find further applications in e.g., sensing, catalytical, and piezoelectric devices.

KW - Etched ion-track membrane

KW - water splitting

KW - Photoelectrochemical applications

KW - TiO2

KW - ZnO

KW - Core-shell nanowires

KW - Nanowire network

KW - Electrodeposition

KW - Water splitting

KW - TiO

UR - http://www.scopus.com/inward/record.url?scp=85053231942&partnerID=8YFLogxK

U2 - 10.3390/nano8090693

DO - 10.3390/nano8090693

M3 - Article

VL - 8

JO - Nanomaterials

JF - Nanomaterials

SN - 2079-4991

IS - 9

M1 - 693

ER -

Movsesyan L, Maijenburg AW, Goethals N, Sigle W, Spende A, Yang F et al. ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applications. Nanomaterials. 2018 Sep 6;8(9). 693. https://doi.org/10.3390/nano8090693