Publications de Wiktor Stefan Bourée

Evaluating Charge Carrier Transport and Surface States in CuFeO

Kevin Sivula, Florian Le Formal, Nestor Guijarro Carratala, 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

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

A Gibeon meteorite yields a high-performance water oxidation electrocatalyst

Paul Joseph Dyson, Arnaud Magrez, Kevin Sivula, Florian Le Formal, Aswin Gopakumar, Nestor Guijarro Carratala, Mathieu Steven Prévot, 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

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

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

Challenges towards Economic Fuel Generation from Renewable Ellectricity: The Heed for Efficient Electro-Catalysis

Kevin Sivula, Florian Le Formal, Mathieu Steven Prévot, Wiktor Stefan Bourée

Utilizing renewable sources of energy is very attractive to provide the growing population on earth in the future but demands the development of efficient storage to mitigate their intermittent nature. Chemical storage, with energy stored in the bonds of c ...

Swiss Chemical Soc2015