Optimizing light harvesting and carrier transport through control of structure and composition
The field of PEC solar fuel production began with the observation of water photo-oxidation on TiO2. Indeed, semiconducting metal oxides generally are attractive photoelectrodes for solar water splitting as the relatively high electronegativity of oxygen results in the formation of stable compounds based on O2– anions. However the identification of an ideal metal oxide photoelectrode materials remains a challenge. Given the vast number of possibilities, ternary and more complex multinary oxides hold much promise for future development. LIMNO works to rationally engineering the band gap in promising ternary and multinary oxides, and to develop preparation routes to control the structure and nature/concentration of defects in these materials. We use advanced purtabation and transient (photo)electrochemical analysis techniques to understand the processes of charge transport and interfacial charge transfer in operando in order to advance the performance of this promising class of semiconducting materials. See examples of our work below.
Representative publications:
Please note that the publication lists from Infoscience integrated into the EPFL website, lab or people pages are frozen following the launch of the new version of platform. The owners of these pages are invited to recreate their publication list from Infoscience. For any assistance, please consult the Infoscience help or contact support.
Insights into the interfacial carrier behaviour of copper ferrite ( CuFe2O4) photoanodes for solar water oxidation
Journal Of Materials Chemistry A. 2019-01-28. Vol. 7, num. 4, p. 1669-1677. DOI : 10.1039/c8ta11160j.Please note that the publication lists from Infoscience integrated into the EPFL website, lab or people pages are frozen following the launch of the new version of platform. The owners of these pages are invited to recreate their publication list from Infoscience. For any assistance, please consult the Infoscience help or contact support.
Spinel Structural Disorder Influences Solar-Water-Splitting Performance of ZnFe2 O4 Nanorod Photoanodes
Advanced Materials. 2018. p. 1801612. DOI : 10.1002/adma.201801612.Please note that the publication lists from Infoscience integrated into the EPFL website, lab or people pages are frozen following the launch of the new version of platform. The owners of these pages are invited to recreate their publication list from Infoscience. For any assistance, please consult the Infoscience help or contact support.
Evaluating spinel ferrites MFe2O4 (M = Cu, Mg, Zn) as photoanodes for solar water oxidation: prospects and limitations
Sustainable Energy & Fuels. 2018. Vol. 2, num. 1, p. 103-117. DOI : 10.1039/C7SE00448F.Please note that the publication lists from Infoscience integrated into the EPFL website, lab or people pages are frozen following the launch of the new version of platform. The owners of these pages are invited to recreate their publication list from Infoscience. For any assistance, please consult the Infoscience help or contact support.
Evaluating Charge Carrier Transport and Surface States in CuFeO
Chemistry of Materials. 2017. Vol. 29, num. 11, p. 4952-4962. DOI : 10.1021/acs.chemmater.7b01284.Please note that the publication lists from Infoscience integrated into the EPFL website, lab or people pages are frozen following the launch of the new version of platform. The owners of these pages are invited to recreate their publication list from Infoscience. For any assistance, please consult the Infoscience help or contact support.
Robust Hierarchically Structured Biphasic Ambipolar Oxide Photoelectrodes for Light-Driven Chemical Regulation and Switchable Logic Applications
Advanced Materials. 2016. Vol. 28, num. 42, p. 9308-9312. DOI : 10.1002/adma.201602265.Please note that the publication lists from Infoscience integrated into the EPFL website, lab or people pages are frozen following the launch of the new version of platform. The owners of these pages are invited to recreate their publication list from Infoscience. For any assistance, please consult the Infoscience help or contact support.