Search Results - "Widmer, Roland"

Observation and control of maximal Chern numbers in a chiral topological semimetal by Schröter, Niels B. M., Stolz, Samuel, Manna, Kaustuv, de Juan, Fernando, Vergniory, Maia G., Krieger, Jonas A., Pei, Ding, Schmitt, Thorsten, Dudin, Pavel, Kim, Timur K., Cacho, Cephise, Bradlyn, Barry, Borrmann, Horst, Schmidt, Marcus, Widmer, Roland, Strocov, Vladimir N., Felser, Claudia

“…A very high Chern number Topologically nontrivial electronic structure can often be characterized by the Chern number, the value of which is related to the…”
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Rationalizing and Controlling the Surface Structure and Electronic Passivation of Cesium Lead Halide Nanocrystals by Bodnarchuk, Maryna I, Boehme, Simon C, ten Brinck, Stephanie, Bernasconi, Caterina, Shynkarenko, Yevhen, Krieg, Franziska, Widmer, Roland, Aeschlimann, Beat, Günther, Detlef, Kovalenko, Maksym V, Infante, Ivan

“…Colloidal lead halide perovskite nanocrystals (NCs) have recently emerged as versatile photonic sources. Their processing and luminescent properties are…”
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On-surface light-induced generation of higher acenes and elucidation of their open-shell character by Urgel, José I., Mishra, Shantanu, Hayashi, Hironobu, Wilhelm, Jan, Pignedoli, Carlo A., Di Giovannantonio, Marco, Widmer, Roland, Yamashita, Masataka, Hieda, Nao, Ruffieux, Pascal, Yamada, Hiroko, Fasel, Roman

“…Acenes are an important class of polycyclic aromatic hydrocarbons which have recently gained exceptional attention due to their potential as functional organic…”
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On-Surface Growth Dynamics of Graphene Nanoribbons: The Role of Halogen Functionalization by Di Giovannantonio, Marco, Deniz, Okan, Urgel, José I, Widmer, Roland, Dienel, Thomas, Stolz, Samuel, Sánchez-Sánchez, Carlos, Muntwiler, Matthias, Dumslaff, Tim, Berger, Reinhard, Narita, Akimitsu, Feng, Xinliang, Müllen, Klaus, Ruffieux, Pascal, Fasel, Roman

“…On-surface synthesis is a powerful route toward the fabrication of specific graphene-like nanostructures confined in two dimensions. This strategy has been…”
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On-surface synthesis and characterization of individual polyacetylene chains by Wang, Shiyong, Sun, Qiang, Gröning, Oliver, Widmer, Roland, Pignedoli, Carlo A., Cai, Liangliang, Yu, Xin, Yuan, Bingkai, Li, Can, Ju, Huanxin, Zhu, Junfa, Ruffieux, Pascal, Fasel, Roman, Xu, Wei

“…Polyacetylene (PA) comprises one-dimensional chains of sp 2 -hybridized carbon atoms that may take a cis or trans configuration. Owing to its simple chemical…”
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Highly Enantioselective Adsorption of Small Prochiral Molecules on a Chiral Intermetallic Compound by Prinz, Jan, Gröning, Oliver, Brune, Harald, Widmer, Roland

“…Intrinsically chiral surfaces of intermetallic compounds are shown to be novel materials for enantioselective processes. Their advantage is the significantly…”
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Surface science at the PEARL beamline of the Swiss Light Source by Muntwiler, Matthias, Zhang, Jun, Stania, Roland, Matsui, Fumihiko, Oberta, Peter, Flechsig, Uwe, Patthey, Luc, Quitmann, Christoph, Glatzel, Thilo, Widmer, Roland, Meyer, Ernst, Jung, Thomas A., Aebi, Philipp, Fasel, Roman, Greber, Thomas

“…The Photo‐Emission and Atomic Resolution Laboratory (PEARL) is a new soft X‐ray beamline and surface science laboratory at the Swiss Light Source. PEARL is…”
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Adsorption of Small Hydrocarbons on the Three-Fold PdGa Surfaces: The Road to Selective Hydrogenation by Prinz, Jan, Pignedoli, Carlo A, Stöckl, Quirin S, Armbrüster, Marc, Brune, Harald, Gröning, Oliver, Widmer, Roland, Passerone, Daniele

“…Intermetallic compounds are a promising class of materials as stable and selective heterogeneous catalysts. Here, the (111) and (−1–1–1) single crystal…”
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Handedness-dependent quasiparticle interference in the two enantiomers of the topological chiral semimetal PdGa by Sessi, Paolo, Fan, Feng-Ren, Küster, Felix, Manna, Kaustuv, Schröter, Niels B. M., Ji, Jing-Rong, Stolz, Samuel, Krieger, Jonas A., Pei, Ding, Kim, Timur K., Dudin, Pavel, Cacho, Cephise, Widmer, Roland, Borrmann, Horst, Shi, Wujun, Chang, Kai, Sun, Yan, Felser, Claudia, Parkin, Stuart S. P.

“…It has recently been proposed that combining chirality with topological band theory results in a totally new class of fermions. Understanding how these…”
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Growth Optimization and Device Integration of Narrow‐Bandgap Graphene Nanoribbons by Borin Barin, Gabriela, Sun, Qiang, Di Giovannantonio, Marco, Du, Cheng‐Zhuo, Wang, Xiao‐Ye, Llinas, Juan Pablo, Mutlu, Zafer, Lin, Yuxuan, Wilhelm, Jan, Overbeck, Jan, Daniels, Colin, Lamparski, Michael, Sahabudeen, Hafeesudeen, Perrin, Mickael L., Urgel, José I., Mishra, Shantanu, Kinikar, Amogh, Widmer, Roland, Stolz, Samuel, Bommert, Max, Pignedoli, Carlo, Feng, Xinliang, Calame, Michel, Müllen, Klaus, Narita, Akimitsu, Meunier, Vincent, Bokor, Jeffrey, Fasel, Roman, Ruffieux, Pascal

“…The electronic, optical, and magnetic properties of graphene nanoribbons (GNRs) can be engineered by controlling their edge structure and width with atomic…”
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On-surface Synthesis: What Happens Behind the Scenes? by Stolz, Samuel, Di Giovannantonio, Marco, Gröning, Oliver, Widmer, Roland

“…On-surface synthesis has become a powerful approach to produce low-dimensional carbon-based nanostructures with atomistic precision. A large variety of…”
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Heteroatom-Doped Perihexacene from a Double Helicene Precursor: On-Surface Synthesis and Properties by Wang, Xiao-Ye, Dienel, Thomas, Di Giovannantonio, Marco, Barin, Gabriela Borin, Kharche, Neerav, Deniz, Okan, Urgel, José I, Widmer, Roland, Stolz, Samuel, De Lima, Luis Henrique, Muntwiler, Matthias, Tommasini, Matteo, Meunier, Vincent, Ruffieux, Pascal, Feng, Xinliang, Fasel, Roman, Müllen, Klaus, Narita, Akimitsu

“…We report on the surface-assisted synthesis and spectroscopic characterization of the hitherto longest periacene analogue with oxygen–boron–oxygen (OBO)…”
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On‐Surface Synthesis of Cumulene‐Containing Polymers via Two‐Step Dehalogenative Homocoupling of Dibromomethylene‐Functionalized Tribenzoazulene by Urgel, José I., Di Giovannantonio, Marco, Eimre, Kristjan, Lohr, Thorsten G., Liu, Junzhi, Mishra, Shantanu, Sun, Qiang, Kinikar, Amogh, Widmer, Roland, Stolz, Samuel, Bommert, Max, Berger, Reinhard, Ruffieux, Pascal, Pignedoli, Carlo A., Müllen, Klaus, Feng, Xinliang, Fasel, Roman

“…Cumulene compounds are notoriously difficult to prepare and study because their reactivity increases dramatically with the increasing number of consecutive…”
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Zeolite-Templated Carbon as a Stable, High Power Magnesium-Ion Cathode Material by Dubey, Romain J.-C, Colijn, Tess, Aebli, Marcel, Hanson, Erin E, Widmer, Roland, Kravchyk, Kostiantyn V, Kovalenko, Maksym V, Stadie, Nicholas P

“…One strategy to overcome the slow kinetics associated with electrochemical magnesium ion storage is to employ a permanently porous, capacitive cathode material…”
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How to Control the Selectivity of Palladium-based Catalysts in Hydrogenation Reactions: The Role of Subsurface Chemistry by Armbrüster, Marc, Behrens, Malte, Cinquini, Fabrizio, Föttinger, Karin, Grin, Yuri, Haghofer, Andreas, Klötzer, Bernhard, Knop-Gericke, Axel, Lorenz, Harald, Ota, Antje, Penner, Simon, Prinz, Jan, Rameshan, Christoph, Révay, Zsolt, Rosenthal, Dirk, Rupprechter, Günther, Sautet, Philippe, Schlögl, Robert, Shao, Lidong, Szentmiklósi, László, Teschner, Detre, Torres, Daniel, Wagner, Ronald, Widmer, Roland, Wowsnick, Gregor

“…Discussed are the recent experimental and theoretical results on palladium‐based catalysts for selective hydrogenation of alkynes obtained by a number of…”
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Electronic Decoupling and Single‐Molecule Charging of C60 on h‐BN/Rh(111) by Bommert, Max, Günzburger, Gino, Widmer, Roland, Schuler, Bruno, Gröning, Oliver

“…A detailed understanding of the interaction between molecules and 2D materials is crucial to implement molecular films into next‐generation 2D material‐organic…”
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Boron Nitride Nanomesh: Functionality from a Corrugated Monolayer by Berner, Simon, Corso, Martina, Widmer, Roland, Groening, Oliver, Laskowski, Robert, Blaha, Peter, Schwarz, Karlheinz, Goriachko, Andrii, Over, Herbert, Gsell, Stefan, Schreck, Matthias, Sachdev, Hermann, Greber, Thomas, Osterwalder, Jürg

“…A nanotemplate surface that functions as a regular array of traps for molecules such as naphthalocyanine (see picture) is provided by a nanomesh of hexagonal…”
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Asymmetric Molecular Adsorption and Regioselective Bond Cleavage on Chiral PdGa Crystals by Merino‐Diez, Nestor, Amador, Raymond, Stolz, Samuel T., Passerone, Daniele, Widmer, Roland, Gröning, Oliver

“…Homogenous enantioselective catalysis is nowadays the cornerstone in the manufacturing of enantiopure substances, but its technological implementation suffers…”
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Sterically Selective [3 + 3] Cycloaromatization in the On-Surface Synthesis of Nanographenes by Kinikar, Amogh, Wang, Xiao-Ye, Di Giovannantonio, Marco, Urgel, José I., Liu, Pengcai, Eimre, Kristjan, Pignedoli, Carlo A., Stolz, Samuel, Bommert, Max, Mishra, Shantanu, Sun, Qiang, Widmer, Roland, Qiu, Zijie, Narita, Akimitsu, Müllen, Klaus, Ruffieux, Pascal, Fasel, Roman

“…Surface-catalyzed reactions have been used to synthesize carbon nanomaterials with atomically predefined structures. The recent discovery of a gold…”
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Overcoming the High-Voltage Limitations of Li-Ion Batteries Using a Titanium Nitride Current Collector by Wang, Shutao, Kravchyk, Kostiantyn V, Filippin, Alejandro N, Widmer, Roland, Tiwari, Ayodhya N, Buecheler, Stephan, Bodnarchuk, Maryna I, Kovalenko, Maksym V

“…The major obstacle to commercialization of high-voltage Li-ion batteries is the lack of oxidatively stable and inexpensive current collectors that can operate…”
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