Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Max Koentopp"'
Autor:
Christophe Ballif, S. Seren, Elisa Tonelli, Pierre Saint-Cast, Renate Horbelt, Bernd Weber, Stephen Devenport, Stefan W. Glunz, Jan Ebser, Wolfgang Oswald, Verena Mertens, Chiara Busto, F Ferrazza, Tabitha Ballmann, Christian Schmiga, Barbara Terheiden, Maximilian Scherff, Michael Rauer, Giso Hahn, D.J. Morrison, Federico Grasso, Jonas Geissbuehler, Jörg Müller, Yvonne Schiele, Max Koentopp, Zachary C. Holman, Antoine Descoeudres, Danilo Antonelli, Silvia Martin de Nicolas, Stefaan De Wolf
Publikováno v:
physica status solidi (a). 212:13-24
Reducing wafer thickness while increasing power conversion efficiency is the most effective way to reduce cost per Watt of a silicon photovoltaic module. Within the European project 20 percent efficiency on less than 100-mu m-thick, industrially feas
Autor:
Maximilian Kauert, Antje Schönmann, G. Zimmermann, Stefan Bordihn, Jörg Müller, Tabitha Ballmann, C. Peters, Janko Cieslak, Max Koentopp, C. Klenke, Verena Mertens
Publikováno v:
Energy Procedia. 55:396-399
We investigate the wafer-thickness dependence of double-side contacted rear junction n-type solar cells, theoretically by PC1D simulations and experimentally. To get the correct input parameters for PC1D, we first fit PC1D simulation to a rear juncti
Autor:
Marcel Mayor, Heiko B. Weber, Ferdinand Evers, Matthias G. Fischer, Max Koentopp, Carsten von Hänisch, Florian Weigend, R. Ochs, Mark Elbing
Publikováno v:
Proceedings of the National Academy of Sciences. 102:8815-8820
We have designed and synthesized a molecular rod that consists of two weakly coupled electronic π -systems with mutually shifted energy levels. The asymmetry thus implied manifests itself in a current–voltage characteristic with pronounced depende
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 18:255-257
We report calculations using density functional theory (DFT) for the conductance of an organic molecule that has been studied experimentally by Reichert et al. (Phys. Rev. Lett. 88 (2002) 176804). Our calculations are based on the nonequilibrium Gree
Publikováno v:
Nano letters. 11(4)
We simultaneously measure conductance and force across nanoscale junctions. A new, two-dimensional histogram technique is introduced to statistically extract bond rupture forces from a large data set of individual junction elongation traces. For the
Autor:
Max Koentopp, Mark S. Hybertsen, Adam C. Whalley, Young S. Park, Latha Venkataraman, Maria Kamenetska, Michael L. Steigerwald, Colin Nuckolls
Publikováno v:
Physical Review Letters. 102
We analyze the formation and evolution statistics of single molecule junctions bonded to gold electrodes using amine, methyl sulfide and dimethyl phosphine link groups by measuring conductance as a function of junction elongation. For each link, maxi
Standard first principles calculations of transport through single molecules miss exchange-correlation corrections to the Landauer formula. From Kubo response theory, both the Landauer formula and these corrections in the limit of zero bias are deriv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::290a8bc9c800d6f1be5a58d538f02b10
Publikováno v:
Journal of Physics: Condensed Matter. 20:083203
Density functional calculations for the electronic conductance of single molecules are now common. We examine the methodology from a rigorous point of view, discussing where it can be expected to work, and where it should fail. When molecules are wea
Publikováno v:
Nano Letters; Apr2011, Vol. 11 Issue 4, p1518-1523, 6p
Publikováno v:
Energy Procedia. :38-46
To further increase the efficiency of PV modules, a variety of technical approaches targeting losses on cell and module level are pursued. Module efficiency is usually stated at standard test conditions (STC) whereas conditions during operation in th