Decoration of TiO2 nanotube layers with WO3 nanocrystals for high-electrochromic activity

Benoit A, Paramasivam I, Nah YC, Roy P, Schmuki P (2009)

Publication Type: Journal article

Publication year: 2009

Journal

Electrochemistry Communications Elsevier

Book Volume: 11

Pages Range: 728-732

Journal Issue: 4

DOI: 10.1016/j.elecom.2009.01.024

Abstract

We report a simple approach to decorate ordered TiO$_2$ nanotube (TiNT) layers with tungsten trioxide nanocrystallites by the controlled hydrolysis of a WCl6 precursor. These WO$_3$ nanocrystallites, when formed, are amorphous, but can be annealed to a monoclinic crystal structure. The WO$_3$ crystallites on the TiO$_2$ nanotube skeleton are electrochemically active, and hence ion insertion reactions are possible. As a result, the decorated nanotube layers show remarkable enhancement of the electrochromic properties. In particular, a significantly lower threshold voltage and an increased electrochromic contrast can be achieved compared with unloaded (neat) TiO$_2$ nanotube layers.

Authors with CRIS profile

Indhumati Paramasivam Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) (LKO) Patrik Schmuki Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) (LKO)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

How to cite

APA:

Benoit, A., Paramasivam, I., Nah, Y.-C., Roy, P., & Schmuki, P. (2009). Decoration of TiO2 nanotube layers with WO3 nanocrystals for high-electrochromic activity. Electrochemistry Communications, 11(4), 728-732. https://doi.org/10.1016/j.elecom.2009.01.024

MLA:

Benoit, A., et al. "Decoration of TiO2 nanotube layers with WO3 nanocrystals for high-electrochromic activity." Electrochemistry Communications 11.4 (2009): 728-732.

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