Hierarchical DSSC structures based on 'single walled' TiO2 nanotube arrays reach a back-side illumination solar light conversion efficiency of 8%

Journal article


Publication Details

Author(s): So S, Hwang I, Schmuki P
Journal: Energy and Environmental Science
Publication year: 2015
Volume: 8
Journal issue: 3
Pages range: 849-854
ISSN: 1754-5692


Abstract

In the present work we introduce a path to the controlled construction of DSSCs based on hierarchically structured single walled, self-organized TiO2 layers. In a first step we describe a simple approach to selectively remove the inner detrimental shell of anodic TiO2 nanotubes (NTs). This then allows controlled well-defined layer-by-layer decoration of these TiO2-NT walls with TiO2 nanoparticles (in contrast to conventional TiO2 nanotubes). We show that such defined multiple layered decoration can be optimized to build dye sensitized solar cells that (under back-side illumination conditions) can yield solar light conversion efficiencies to the extent of 8%. The beneficial effects observed can be ascribed to a combination of three factors: (1) improved electronic properties of the ``single walled'' tubes themselves, (2) a further improvement of the electronic properties by the defined TiCl4 treatment, and (3) a higher specific dye loading that becomes possible for the layer-by-layer decorated single walled tubes.


FAU Authors / FAU Editors

Hwang, Imgon
Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)
Schmuki, Patrik Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)
So, Seulgi
Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


Research Fields

D Catalytic Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
So, S., Hwang, I., & Schmuki, P. (2015). Hierarchical DSSC structures based on 'single walled' TiO2 nanotube arrays reach a back-side illumination solar light conversion efficiency of 8%. Energy and Environmental Science, 8(3), 849-854. https://dx.doi.org/10.1039/c4ee03729d

MLA:
So, Seulgi, Imgon Hwang, and Patrik Schmuki. "Hierarchical DSSC structures based on 'single walled' TiO2 nanotube arrays reach a back-side illumination solar light conversion efficiency of 8%." Energy and Environmental Science 8.3 (2015): 849-854.

BibTeX: 

Last updated on 2019-21-03 at 02:08