Publications by Mathieu Steven Prévot

CuInGaS2 photocathodes treated with SbX3 (X = Cl, I): the effect of the halide on solar water splitting performance

Kevin Sivula, Nestor Guijarro Carratala, Florian Le Formal, Xavier Adrian Jeanbourquin, Xiaoyun Yu, Mathieu Steven Prévot, Pauline Bornoz, Wiktor Stefan Bourée

The realization of photoelectrochemical tandem cells for efficient solar-to-hydrogen energy conversion is currently impeded by the lack of inexpensive, stable, and efficient photocathodes. The family of sulfide chalcopyrites (CuInxGa1-xS2) has recently dem ...

Iop Publishing Ltd2017

Evaluating Charge Carrier Transport and Surface States in CuFeO

Kevin Sivula, Nestor Guijarro Carratala, Florian Le Formal, Xavier Adrian Jeanbourquin, Mathieu Steven Prévot, Wiktor Stefan Bourée

Interest in delafossite (CuFeO2) as a candidate p-type photocathode for photoelectrochemical (PEC) solar fuel production has recently been increasing, mainly due to its excellent stability in aqueous environments and favorable light absorption properties. ...

American Chemical Society2017

A Gibeon meteorite yields a high-performance water oxidation electrocatalyst

Paul Joseph Dyson, Arnaud Magrez, Kevin Sivula, Nestor Guijarro Carratala, Florian Le Formal, Mathieu Steven Prévot, Aswin Gopakumar, Wiktor Stefan Bourée, Charlotte Marie Sornay, Julie Voit

Examining the electrocatalytic performance of naturally-occurring metallic minerals is of interest for energy conversion applications given their unique atomic composition and formation history. Herein, we report the electrocatalytic function of an iron-ba ...

2016

Improving charge collection with delafossite photocathodes: a host–guest CuAlO2/CuFeO2 approach

Kevin Sivula, Nestor Guijarro Carratala, Yang Li, Mathieu Steven Prévot

p-Type delafossite CuFeO2 has recently been reported as a promising candidate for direct photoelectrochemical solar water reduction in alkaline conditions. However, despite its favorable optical band gap energy and light absorption, this material suffers f ...

Royal Soc Chemistry2016

A Bottom-Up Approach toward All-Solution-Processed High-Efficiency Cu(In,Ga)S

Kevin Sivula, Nestor Guijarro Carratala, Florian Le Formal, Xavier Adrian Jeanbourquin, Xiaoyun Yu, Mathieu Steven Prévot, Pauline Bornoz, Wiktor Stefan Bourée

The development of solution-processable routes to prepare efficient photoelectrodes for water splitting is highly desirable to reduce manufacturing costs. Recently, sulfide chalcopyrites (Cu(In,Ga)S-2) have attracted attention as photocathodes for hydrogen ...

Wiley-VCH Verlag Berlin2016

Robust Hierarchically Structured Biphasic Ambipolar Oxide Photoelectrodes for Light-Driven Chemical Regulation and Switchable Logic Applications

Kevin Sivula, Nestor Guijarro Carratala, Florian Le Formal, Xavier Adrian Jeanbourquin, Mathieu Steven Prévot, Wiktor Stefan Bourée

Tunable ambipolar photoelectrochemical behavior emerges from microdomains of nanostructured p-type CuFeO2 and n-type Fe2O3 that arise from a single facile solution-processed thin fi lm. The switchable operation of this system is controlled by chemical, opt ...

Wiley-Blackwell2016

Self-assembled 2D WSe2 thin films for photoelectrochemical hydrogen production

Kevin Sivula, Nestor Guijarro Carratala, Xiaoyun Yu, Mathieu Steven Prévot

WSe2-a layered semiconductor that can be exfoliated into atomically thin two-dimensional sheets-offers promising characteristics for application in solar energy conversion. However, the lack of controllable, cost-effective methods to scalably fabricate hom ...

Nature Publishing Group2015

Autodecomposition Approach for the Low-Temperature Mesostructuring of Nanocrystal Semiconductor Electrodes

Kevin Sivula, Nestor Guijarro Carratala, Xavier Adrian Jeanbourquin, Xiaoyun Yu, Mathieu Steven Prévot

Templating nanocrystals into mesoporous electrodes using an organic porogen typically requires thermal oxidation at >400 degrees C to completely remove the organic material and afford good electronic properties. These oxidation conditions are incompatible ...

American Chemical Society2015

Enhancing the Performance of a Robust Sol-Gel-Processed p-Type Delafossite CuFeO2 Photocathode for Solar Water Reduction

Kevin Sivula, Nestor Guijarro Carratala, Mathieu Steven Prévot

Delafossite CuFeO2 is a promising material for solar hydrogen production, but is limited by poor photocurrent. Strategies are demonstrated herein to improve the performance of CuFeO2 electrodes prepared directly on transparent conductive substrates by usin ...

Wiley-VCH Verlag Berlin2015

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Mathieu Steven Prévot

Investigating and controlling charge carrier behavior in p-type delafossite CuFeO₂ photocathodes for solar fuel production

CuInGaS2 photocathodes treated with SbX3 (X = Cl, I): the effect of the halide on solar water splitting performance

Evaluating Charge Carrier Transport and Surface States in CuFeO

A Gibeon meteorite yields a high-performance water oxidation electrocatalyst

Improving charge collection with delafossite photocathodes: a host–guest CuAlO2/CuFeO2 approach

A Bottom-Up Approach toward All-Solution-Processed High-Efficiency Cu(In,Ga)S

Robust Hierarchically Structured Biphasic Ambipolar Oxide Photoelectrodes for Light-Driven Chemical Regulation and Switchable Logic Applications

Self-assembled 2D WSe2 thin films for photoelectrochemical hydrogen production

Autodecomposition Approach for the Low-Temperature Mesostructuring of Nanocrystal Semiconductor Electrodes

Enhancing the Performance of a Robust Sol-Gel-Processed p-Type Delafossite CuFeO2 Photocathode for Solar Water Reduction

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Autodecomposition Approach for the Low-Temperature Mesostructuring of Nanocrystal Semiconductor Electrodes

A Gibeon meteorite yields a high-performance water oxidation electrocatalyst

Evaluating Charge Carrier Transport and Surface States in CuFeO

Improving charge collection with delafossite photocathodes: a host–guest CuAlO2/CuFeO2 approach

Self-assembled 2D WSe2 thin films for photoelectrochemical hydrogen production

CuInGaS2 photocathodes treated with SbX3 (X = Cl, I): the effect of the halide on solar water splitting performance

Investigating and controlling charge carrier behavior in p-type delafossite CuFeO₂ photocathodes for solar fuel production

A Bottom-Up Approach toward All-Solution-Processed High-Efficiency Cu(In,Ga)S

Robust Hierarchically Structured Biphasic Ambipolar Oxide Photoelectrodes for Light-Driven Chemical Regulation and Switchable Logic Applications

Enhancing the Performance of a Robust Sol-Gel-Processed p-Type Delafossite CuFeO2 Photocathode for Solar Water Reduction