Photoelectrochemical Poperties of Anodic TiO2 Nanosponge Layers

Sanchez-Tovar R, Lee K, Garcia-Anton J, Schmuki P (2013)

Publication Type: Journal article

Publication year: 2013

Journal

ECS Electrochemistry Letters Electrochemical Society

Book Volume: 2

Pages Range: H9-H11

Journal Issue: 3

DOI: 10.1149/2.005303eel

Abstract

In the present work we grow TiO2 nanosponge structures by anodizing Ti in a glycerol/water/NH4F electrolyte to thickness of some \textgreekmm. We evaluate the photoelectrochemical behavior (bandgap, photocurrent-voltage characteristics) in presence and absence of methanol. Methanol drastically affects the photoresponse (due to hole capture and current doubling). The optimum thickness for photoelectrochemical applications of these nanostructures is dependent on the excitation wavelength. For applications such as solar light water splitting, anodic sponge structure of $≈$500 nm thickness can be beneficially used to increase the photoresponse compared to compact TiO2 layers.

Authors with CRIS profile

Kiyoung Lee Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) Patrik Schmuki Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials

Involved external institutions

Polytechnic University of Valencia / Universidad Politécnica de Valencia ES Spain (ES)

How to cite

APA:

Sanchez-Tovar, R., Lee, K., Garcia-Anton, J., & Schmuki, P. (2013). Photoelectrochemical Poperties of Anodic TiO2 Nanosponge Layers. ECS Electrochemistry Letters, 2(3), H9-H11. https://dx.doi.org/10.1149/2.005303eel

MLA:

Sanchez-Tovar, Rita, et al. "Photoelectrochemical Poperties of Anodic TiO2 Nanosponge Layers." ECS Electrochemistry Letters 2.3 (2013): H9-H11.

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