Results 1 to 10 of about 1,331 (130)

Scalable quantum photonic platform based on site-controlled quantum dots coupled to circular Bragg grating resonators [PDF]

Light: Science & Applications
The scalable integration of solid-state quantum emitters into photonic nanostructures remains a central challenge for quantum photonic technologies. Here, we demonstrate a robust and streamlined integration strategy that tackles the long-standing issue ...
Kartik Gaur, Avijit Barua, Sarthak Tripathi, Léo J. Roche, Steffen Wilksen, Alexander Steinhoff, Sam Baraz, Neha Nitin, Chirag C. Palekar, Aris Koulas-Simos, Imad Limame, Priyabrata Mudi, Sven Rodt, Christopher Gies, Stephan Reitzenstein   +14 more
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N-Heterocyclic Carbenes on a III-V Semiconductor: From Chain Formation to Ordered Monolayers. [PDF]

Angew Chem Int Ed Engl
The functionalization of GaAs, a model III‐V semiconductor, with N‐heterocyclic carbenes is demonstrated in a multidisciplinary experimental and theoretical approach. In this way, ordered monolayers consisting of chains of molecules binding covalently to the surface are obtained, which are found to strongly modify the surface properties as evident from
Franz M, Das A, Chandola S, Kubicki M, Das M, Sette A, Corona D, Palummo M, Chiodo L, Schöder R, Chahar P, Fuhrmann B, Engelhardt J, Düren O, Rosenzweig DS, Bakos P, Jakob KL, Dähne M, Hogan C, Esser N, Glorius F.   +20 more
europepmc   +2 more sources

Inverted temperature gradients in gold–palladium antenna-reactor nanoparticles [PDF]

Nature Communications
In addition to enhanced fields and possible charge transfer, the concentration of photothermal energy at the nanoscale is a central feature of plasmon-driven photochemistry.
Felix Stete, Shivani Kesarwani, Charlotte Ruhmlieb, Sven H. C. Askes, Florian Schulz, Matias Bargheer, Holger Lange   +6 more
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Flip Angle Errors in Actual Flip Angle Imaging Using Polyvinylpyrrolidone/Water-Based Phantoms. [PDF]

Magn Reson Med
ABSTRACT Purpose The aim of this work is to report and investigate unexpected errors in actual flip angle imaging (AFI) applied to phantom fillings based on polyvinylpyrrolidone (PVP). Methods Flip angle maps of PVP/water mixtures with different PVP ratios were acquired at 3 T and 7 T using a 3D cartesian AFI. The influence of spoiling was investigated
Himburg N, Lutz M, Mitschang L, Frintz JG, Schmitter S.   +4 more
europepmc   +2 more sources

A multiscale <i>in situ</i> time-resolved study of the nano- to millisecond structural dynamics during protein crystallization. [PDF]

J Appl Crystallogr
Protein crystallization is a crucial method for structure determination and biological studies, but its pathways remain poorly understood, often relying on trial and error to initiate crystallization. Using a multitechnique approach, this study investigates structural and diffusion properties across various time and length scales to compare different ...
Beck C, Mosca I, Miñarro LM, Sohmen B, Buchholz C, Maier R, Reichart LF, Grundel AC, Bäuerle F, Nasro R, Banks H, Christmann S, Pastryk KF, Farago B, Czakkel O, Prévost S, Gerlach A, Grimaldo M, Roosen-Runge F, Matsarskaia O, Schreiber F, Seydel T.   +21 more
europepmc   +2 more sources

Is Phenylnitrene a Missing Link in the Formation of Polycyclic Aromatic Nitrogen Heterocycles? [PDF]

Angew Chem Int Ed Engl
A new formation pathway for polycyclic aromatic nitrogen heterocycles (PANHs) has been found. The reaction of phenylnitrene and the propargyl radical leads to quinoline, proving that nitrenes are suitable precursors for nitrogen incorporation mechanisms.
Arns R, McClish R, Hemberger P, Bodi A, Bouwman J, Kasper T, Schleier D.   +6 more
europepmc   +2 more sources

Mitigating Mobile-Ion-Induced Instabilities and Performance Losses in 2D Passivated Perovskite Solar Cells. [PDF]

Adv Mater
This study addresses the challenges of mobile‐ion‐induced instability in perovskite solar cells. Introducing bilayer passivation with ammonium salts (EDAI₂/PEAI and ABS/PEAI) significantly reduces ion density and improves device stability. The approach mitigates the detrimental effects of PEAI‐induced ionic losses, enhancing both performance and ...
Seid BA, Ozen S, Castro-Méndez AF, Neher D, Stolterfoht M, Lang F.   +5 more
europepmc   +2 more sources

Publisher Correction: Following excited-state chemical shifts in molecular ultrafast x-ray photoelectron spectroscopy [PDF]

Nature Communications, 2022
D. Mayer, F. Lever, D. Picconi, J. Metje, S. Alisauskas, F. Calegari, S. Düsterer, C. Ehlert, R. Feifel, M. Niebuhr, B. Manschwetus, M. Kuhlmann, T. Mazza, M. S. Robinson, R. J. Squibb, A. Trabattoni, M. Wallner, P. Saalfrank, T. J. A. Wolf, M. Gühr   +19 more
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Reciprocal space slicing: A time-efficient approach to femtosecond x-ray diffraction

Structural Dynamics, 2021
An experimental technique that allows faster assessment of out-of-plane strain dynamics of thin film heterostructures via x-ray diffraction is presented.
S. P. Zeuschner, M. Mattern, J.-E. Pudell, A. von Reppert, M. Rössle, W. Leitenberger, J. Schwarzkopf, J. E. Boschker, M. Herzog, M. Bargheer   +9 more
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Author Correction: Non-local effect of impurity states on the exchange coupling mechanism in magnetic topological insulators

npj Quantum Materials, 2021
A Correction to this paper has been published: https://doi.org/10.1038/s41535-021-00314 ...
Thiago R. F. Peixoto, Hendrik Bentmann, Philipp Rüßmann, Abdul-Vakhab Tcakaev, Martin Winnerlein, Steffen Schreyeck, Sonja Schatz, Raphael Crespo Vidal, Fabian Stier, Volodymyr Zabolotnyy, Robert J. Green, Chul Hee Min, Celso I. Fornari, Henriette Maaß, Hari Babu Vasili, Pierluigi Gargiani, Manuel Valvidares, Alessandro Barla, Jens Buck, Moritz Hoesch, Florian Diekmann, Sebastian Rohlf, Matthias Kalläne, Kai Rossnagel, Charles Gould, Karl Brunner, Stefan Blügel, Vladimir Hinkov, Laurens W. Molenkamp, Friedrich Reinert   +29 more
doaj   +1 more source