Ralph Steininger
Karlsruhe Institute of Technology
101 Papers
190 Citations
Ralph Steininger is an academic researcher from Karlsruhe Institute of Technology. The author has contributed to research in topics: Chemistry & Goethite. The author has an hindex of 19, co-authored 93 publications.
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Papers
Bridging the efficiency gap: fully bridged dinuclear Cu(I)-complexes for singlet harvesting in high-efficiency OLEDs.
Daniel Volz,Ying Chen,Manuela Wallesch,Rui Liu,Charlotte Fléchon,Daniel M. Zink,Jana Friedrichs,Harald Flügge,Ralph Steininger,Jörg Göttlicher,Clemens Heske,Lothar Weinhardt,Stefan Bräse,Franky So,Thomas Baumann +14 more
TL;DR: It is demonstrated that using a solution-processed, fully bridged dinuclear Cu(I)-complex can yield very high efficiencies, and an optimized device gives a maximum external quantum efficiency.
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Thallium speciation and extractability in a thallium- and arsenic-rich soil developed from mineralized carbonate rock.
Andreas Voegelin,Numa Pfenninger,Julia Petrikis,Juraj Majzlan,Michael Plötze,Anna-Caterina Senn,Stefan Mangold,Ralph Steininger,Jörg Göttlicher +8 more
TL;DR: This study provides first direct spectroscopic evidence for Tl(I) uptake by illite and indicates the need for further studies on the sorption of Tl to clay minerals and Mn-oxides and its impact on Tl solubility in soils.
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New insights into hydrothermal vent processes in the unique shallow-submarine arc-volcano, Kolumbo (Santorini), Greece
Stephanos P. Kilias,Paraskevi Nomikou,Dimitrios Papanikolaou,Paraskevi N. Polymenakou,Athanasios Godelitsas,Ariadne Argyraki,Steven Carey,P. Gamaletsos,P. Gamaletsos,T. J. Mertzimekis,Eleni Stathopoulou,Joerg Goettlicher,Ralph Steininger,Konstantina Betzelou,Isidoros Livanos,Christos A. Christakis,Katherine L.C. Bell,Michael Scoullos +17 more
TL;DR: It is highlighted that acidic shallow-submarine hydrothermal vents nourish marine ecosystems in which nitrifying Archaea are important and suggest ferrihydrite-type Fe3+-(hydrated)-oxyhydroxides in associated low-temperature iron mats are formed by anaerobic Fe2+-oxidation, dependent on microbially produced nitrate.
CAT-ACT-A new highly versatile x-ray spectroscopy beamline for catalysis and radionuclide science at the KIT synchrotron light facility ANKA.
Anna Zimina,Kathy Dardenne,Melissa A. Denecke,Dmitry E. Doronkin,E. Huttel,Henning Lichtenberg,Stefan Mangold,Tim Pruessmann,J. Rothe,Th. Spangenberg,Ralph Steininger,Tonya Vitova,Horst Geckeis,Jan-Dierk Grunwaldt +13 more
TL;DR: CAT-ACT augments present capabilities at the INE-Beamline by increasing the flux and extending the energy range into the hard X-ray regime, and combines state-of-the-art optics with a unique infrastructure for radionuclide and catalysis research.
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Structural incorporation of As5+ into hematite.
Ralph M. Bolanz,Maria Wierzbicka-Wieczorek,Mária Čaplovičová,Peter Uhlík,Jörg Göttlicher,Ralph Steininger,Juraj Majzlan +6 more
TL;DR: Evidence is presented that, besides adsorption, the incorporation of As into the hematite crystals can be of great relevance for As immobilization and a new immobilization mechanism and potentially long-lasting storage facility for As(5+) by iron oxides is presented.
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