Nicolas Tétreault

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Related publications (25)

Cathodic shift in onset potential of solar oxygen evolution on hematite by 13-group oxide overlayers

Michael Graetzel, Maurin Cornuz, Kevin Sivula, Florian Le Formal, Jérémie Minh-Châu Brillet, Nicolas Tétreault, Takashi Hisatomi

The onset potential of photoelectrochemical water oxidation on ultrathin hematite was improved by up to 200 mV by the chemical bath deposition of 13-group oxides as overlayers. It is proposed that the corundum-type overlayers released lattice strain of the ...

2011

Passivating surface states on water splitting hematite photoanodes with alumina overlayers

Michael Graetzel, Maurin Cornuz, Kevin Sivula, Florian Le Formal, Nicolas Tétreault, Thomas Moehl

Hematite is a promising material for inexpensive solar energy conversion via water splitting but has been limited by the large overpotential (0.5-0.6 V) that must be applied to afford high water oxidation photocurrent. This has conventionally been addresse ...

2011

High-Efficiency Solid-State Dye-Sensitized Solar Cells: Fast Charge Extraction through Self-Assembled 3D Fibrous Network of Crystalline TiO2 Nanowires

László Forró, Michael Graetzel, Shaik Mohammed Zakeeruddin, Arnaud Magrez, Laurent Gabriel Félix Alexandre Stéphane Bungener, Jérémie Minh-Châu Brillet, Nicolas Tétreault, Rita Smajda, Endre Horvath, Thomas Moehl, Peng Wang

Herein, we present a novel morphology for solid-state dye-sensitized solar cells based on the simple and straightforward self-assembly of nanorods into a 3D fibrous network of fused single-crystalline anatase nanowires. This architecture offers a high roug ...

American Chemical Society2010

Dye-Sensitized Solar Cell Based on a Three-Dimensional Photonic Crystal

Nicolas Tétreault, Stefan Guldin

We present a material assembly route for the manufacture of dye-sensitized solar cells, coupling a high-surface mesoporous layer to a three-dimensional photonic crystal (PC) Material synthesis aided by self-assembly on two length scales provided electrical ...

American Chemical Society2010

Pore-Filling of Spiro-OMeTAD in Solid-State Dye Sensitized Solar Cells: Quantification, Mechanism, and Consequences for Device Performance

Michael Graetzel, Jérémie Minh-Châu Brillet, Nicolas Tétreault

In this paper, the pore filling of spiro-OMeTAD (2,2',7,7'-tetrakis-(N,N-di-p-methoxyphenylamine)9,9'-spirobifluorene) in mesoporous TiO2 film is quantified for the first time using XPS depth profiling and UV-Vis absorption spectroscopy. It is shown that s ...

2009

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