Info message Dieser Inhalt ist nicht auf Deutsch verfügbar. Hinweis nicht mehr anzeigen. Scientific Highlights Scientific Highlights Titel Datum Jahr Jahr201920182017201620152014201320122011201020092008 Monat MonatJanuarFebruarMärzAprilMaiJuniJuliAugustSeptemberOktoberNovemberDezember 11. Februar 2019 Electronic localization in CaVO3 films via bandwidth control Understanding and controlling the electronic structure of thin layers of quantum materials is a crucial first step towards designing heterostructures where new phases and phenomena, including the metal-insulator transition (MIT), emerge. Here, we demonstrate control of the MIT via tuning electronic bandwidth and local site environment through selection of the number of atomic layers deposited. 8. Februar 2019 Emergent magnetic monopole dynamics in macroscopically degenerate artificial spin ice Magnetic monopoles, proposed as elementary particles that act as isolated magnetic south and north poles, have long attracted research interest as magnetic analogs to electric charge. In solid-state physics, a classical analog to these elusive particles has emerged as topological excitations within pyrochlore spin ice systems. We present the first real-time imaging of emergent magnetic monopole motion in a macroscopically degenerate artificial spin ice system consisting of thermally activated Ising-type nanomagnets lithographically arranged onto a pre-etched silicon substrate. factors are observed. 17. Januar 2019 Improved Photoelectrochemical Water Splitting of CaNbO2N Photoanodes by CoPi Photodeposition and Surface Passivation Photoelectrochemical (PEC) solar water splitting is a promising approach to convert solar energy into sustainable hydrogen fuel using semiconductor electrodes. Owing to their visible light absorption properties, oxynitrides have shown to be attractive photocatalysts for this application. In this study, the influence of the preparation method of CaNbO2N particles on their morphological and optical properties, and thereby their PEC performance, is investigated. The best performing CaNbO2N photoanode is produced by ammonolysis of Nb-enriched calcium niobium oxide. 4. Januar 2019 Oxynitride Thin Films versus Particle-Based Photoanodes: A Comparative Study for Photoelectrochemical Solar Water Splitting The solar water splitting process assisted by semiconductor photocatalysts attracts growing research interests worldwide for the production of hydrogen as a clean and sustainable energy carrier. Because of their optical and electrical properties, several oxynitride materials show great promise for the fabrication of efficient photocatalysts for solar water splitting. This study reports a comparative investigation of particle- and thin-film-based photocatalysts using three different oxynitride materials. Mit Sidebar Contact Thin Films and Interfaces Group Paul Scherrer Institut 5232 Villigen PSI Switzerland Homepage Professor Dr. Dr. h.c. Thomas Lippert Head of Group OFLB/U110 tel: +41 56 310 4076 fax: +41 56 310 2688 thomas.lippert@psi.ch Seminars Thin Films and Interfaces Group Seminars ENE Seminars CMT seminar/journal club Homepage NUM Research with Neutrons and Muons NUM Division at PSI PSI Scientific Reports Archive 2006-2012. The Scientific Reports – containing accounts of research topics from all the different areas – provide an impression of the variety of subjects researched at PSI. Open Positions Job Opportunities at Research Division NUM.
11. Februar 2019 Electronic localization in CaVO3 films via bandwidth control Understanding and controlling the electronic structure of thin layers of quantum materials is a crucial first step towards designing heterostructures where new phases and phenomena, including the metal-insulator transition (MIT), emerge. Here, we demonstrate control of the MIT via tuning electronic bandwidth and local site environment through selection of the number of atomic layers deposited.
8. Februar 2019 Emergent magnetic monopole dynamics in macroscopically degenerate artificial spin ice Magnetic monopoles, proposed as elementary particles that act as isolated magnetic south and north poles, have long attracted research interest as magnetic analogs to electric charge. In solid-state physics, a classical analog to these elusive particles has emerged as topological excitations within pyrochlore spin ice systems. We present the first real-time imaging of emergent magnetic monopole motion in a macroscopically degenerate artificial spin ice system consisting of thermally activated Ising-type nanomagnets lithographically arranged onto a pre-etched silicon substrate. factors are observed.
17. Januar 2019 Improved Photoelectrochemical Water Splitting of CaNbO2N Photoanodes by CoPi Photodeposition and Surface Passivation Photoelectrochemical (PEC) solar water splitting is a promising approach to convert solar energy into sustainable hydrogen fuel using semiconductor electrodes. Owing to their visible light absorption properties, oxynitrides have shown to be attractive photocatalysts for this application. In this study, the influence of the preparation method of CaNbO2N particles on their morphological and optical properties, and thereby their PEC performance, is investigated. The best performing CaNbO2N photoanode is produced by ammonolysis of Nb-enriched calcium niobium oxide.
4. Januar 2019 Oxynitride Thin Films versus Particle-Based Photoanodes: A Comparative Study for Photoelectrochemical Solar Water Splitting The solar water splitting process assisted by semiconductor photocatalysts attracts growing research interests worldwide for the production of hydrogen as a clean and sustainable energy carrier. Because of their optical and electrical properties, several oxynitride materials show great promise for the fabrication of efficient photocatalysts for solar water splitting. This study reports a comparative investigation of particle- and thin-film-based photocatalysts using three different oxynitride materials.
