Composite Nanostructures of TiO2 and ZnO for Water Splitting Application: Atomic Layer Deposition Growth and Density Functional Theory Investigation

Journal article
(Original article)


Publication Details

Author(s): Kulmas M, Paerson L, Höflich K, Bashouti MY, Wu Y, Göbelt M, Ristein J, Bachmann J, Meyer B, Christiansen S
Journal: Advanced Functional Materials
Publisher: Wiley-VCH Verlag
Publication year: 2016
Volume: 26
Journal issue: 27
Pages range: 4882-4889
ISSN: 1616-301X
eISSN: 1616-3028


Abstract


The commercialization of solar fuel devices requires the development of novel engineered photoelectrodes for water splitting applications which are based on redundant, cheap, and environmentally friendly materials. In the current study, a combination of titanium dioxide (TiO) and zinc oxide (ZnO) onto nanotextured silicon is utilized for a composite electrode with the aim to overcome the individual shortcomings of the respective materials. The properties of conformal coverage of TiO and ZnO layers are designed on the atomic scale by the atomic layer deposition technique. The resulting photoanode shows not only promising stability but also nine times higher photocurrents than an equivalent photoanode with a pure TiO encapsulation onto the nanostructured silicon. Density functional theory calculations indicate that segregation of TiO at the ZnO surfaces is favorable and leads to the stabilization of the ZnO layers in water environments. In conclusion, the novel designed composite material constitutes a promising base for a stable and effective photoanode for the water oxidation reaction.



FAU Authors / FAU Editors

Bachmann, Julien Prof.
Lehrstuhl für Chemistry of thin film materials
Meyer, Bernd Prof. Dr.
Professur für Computational Chemistry
Ristein, Jürgen apl. Prof. Dr.
Lehrstuhl für Laserphysik
Wu, Yanlin
Lehrstuhl für Anorganische und Allgemeine Chemie


Additional Organisation
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Exzellenz-Cluster Engineering of Advanced Materials
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


External institutions with authors

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light


Research Fields

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials
C Photonic and Optical Materials
Exzellenz-Cluster Engineering of Advanced Materials
A3 Multiscale Modeling and Simulation
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Kulmas, M., Paerson, L., Höflich, K., Bashouti, M.Y., Wu, Y., Göbelt, M.,... Christiansen, S. (2016). Composite Nanostructures of TiO2 and ZnO for Water Splitting Application: Atomic Layer Deposition Growth and Density Functional Theory Investigation. Advanced Functional Materials, 26(27), 4882-4889. https://dx.doi.org/10.1002/adfm.201505524

MLA:
Kulmas, Marina, et al. "Composite Nanostructures of TiO2 and ZnO for Water Splitting Application: Atomic Layer Deposition Growth and Density Functional Theory Investigation." Advanced Functional Materials 26.27 (2016): 4882-4889.

BibTeX: 

Last updated on 2019-03-06 at 16:29