Search Results - "Rolf Erni"

The ground exciton state of formamidinium lead bromide perovskite nanocrystals is a singlet dark state by Tamarat, Philippe, Bodnarchuk, Maryna I., Trebbia, Jean-Baptiste, Erni, Rolf, Kovalenko, Maksym V., Even, Jacky, Lounis, Brahim

“…Lead halide perovskites have emerged as promising new semiconductor materials for high-efficiency photovoltaics, light-emitting applications and quantum…”
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Ultra-narrow room-temperature emission from single CsPbBr3 perovskite quantum dots by Rainò, Gabriele, Yazdani, Nuri, Boehme, Simon C., Kober-Czerny, Manuel, Zhu, Chenglian, Krieg, Franziska, Rossell, Marta D., Erni, Rolf, Wood, Vanessa, Infante, Ivan, Kovalenko, Maksym V.

“…Semiconductor quantum dots have long been considered artificial atoms, but despite the overarching analogies in the strong energy-level quantization and the…”
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Determination of the Local Chemical Structure of Graphene Oxide and Reduced Graphene Oxide by Erickson, Kris, Erni, Rolf, Lee, Zonghoon, Alem, Nasim, Gannett, Will, Zettl, Alex

“…The local atomic structure of graphene oxide (GO) and reduced annealed graphene oxide (raGO) is determined via ultra‐high‐resolution transmission electron…”
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Multi-step atomic mechanism of platinum nanocrystals nucleation and growth revealed by in-situ liquid cell STEM by Dachraoui, Walid, Henninen, Trond R., Keller, Debora, Erni, Rolf

“…The understanding of crystal growth mechanisms has broadened substantially. One significant advancement is based in the conception that the interaction between…”
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Potassium-induced surface modification of Cu(In,Ga)Se2 thin films for high-efficiency solar cells by Chirilă, Adrian, Reinhard, Patrick, Pianezzi, Fabian, Bloesch, Patrick, Uhl, Alexander R., Fella, Carolin, Kranz, Lukas, Keller, Debora, Gretener, Christina, Hagendorfer, Harald, Jaeger, Dominik, Erni, Rolf, Nishiwaki, Shiro, Buecheler, Stephan, Tiwari, Ayodhya N.

“…Compared with their rigid counterparts, thin-film solar cells grown on flexible substrates usually display lower power-conversion efficiencies. Now, the…”
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Multi-resolution convolutional neural networks for inverse problems by Wang, Feng, Eljarrat, Alberto, Müller, Johannes, Henninen, Trond R., Erni, Rolf, Koch, Christoph T.

“…Inverse problems in image processing, phase imaging, and computer vision often share the same structure of mapping input image(s) to output image(s) but are…”
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Three-dimensional atomic imaging of crystalline nanoparticles by Van Aert, Sandra, Batenburg, Kees J., Rossell, Marta D., Erni, Rolf, Van Tendeloo, Gustaaf

“…Crystal power now in 3D Many engineering and chemical applications make use of crystalline nanoparticles, harnessing properties that are controlled by their…”
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The Structure of Sub‐nm Platinum Clusters at Elevated Temperatures by Henninen, Trond R., Bon, Marta, Wang, Feng, Passerone, Daniele, Erni, Rolf

“…Little is known about metallic clusters consisting merely of a dozen of atoms or even less, despite of their importance in catalysis and crystal nucleation…”
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Formation of Au Nanoparticles in Liquid Cell Transmission Electron Microscopy: From a Systematic Study to Engineered Nanostructures by Zhang, Yucheng, Keller, Debora, Rossell, Marta D, Erni, Rolf

“…In this work, a systematic study of the effect of electron dose rate, solute concentration, imaging mode (broad beam vs scanning probe mode), and liquid cell…”
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Noise2Atom: unsupervised denoising for scanning transmission electron microscopy images by Wang, Feng, Henninen, Trond R., Keller, Debora, Erni, Rolf

“…We propose an effective deep learning model to denoise scanning transmission electron microscopy (STEM) image series, named Noise2Atom, to map images from a…”
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Periodic Giant Polarization Gradients in Doped BiFeO3 Thin Films by Campanini, Marco, Erni, Rolf, Yang, Chan−Ho, Ramesh, Ramamoorthy, Rossell, Marta D

“…The ultimate challenge for the development of new multiferroics with enhanced properties lies in achieving nanoscale control of the coupling between different…”
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High-Mobility In2O3:H Electrodes for Four-Terminal Perovskite/CuInSe2 Tandem Solar Cells by Jiang, Yan, Feurer, Thomas, Carron, Romain, Sevilla, Galo Torres, Moser, Thierry, Pisoni, Stefano, Erni, Rolf, Rossell, Marta D, Ochoa, Mario, Hertwig, Ramis, Tiwari, Ayodhya N, Fu, Fan

“…Four-terminal (4-T) tandem solar cells (e.g., perovskite/CuInSe2 (CIS)) rely on three transparent conductive oxide electrodes with high mobility and low free…”
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A strong electro-optically active lead-free ferroelectric integrated on silicon by Abel, Stefan, Stöferle, Thilo, Marchiori, Chiara, Rossel, Christophe, Rossell, Marta D., Erni, Rolf, Caimi, Daniele, Sousa, Marilyne, Chelnokov, Alexei, Offrein, Bert J., Fompeyrine, Jean

“…The development of silicon photonics could greatly benefit from the linear electro-optical properties, absent in bulk silicon, of ferroelectric oxides, as a…”
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A two-dimensional polymer prepared by organic synthesis by Kissel, Patrick, Erni, Rolf, Schweizer, W. Bernd, Rossell, Marta D., King, Benjamin T., Bauer, Thomas, Götzinger, Stephan, Schlüter, A. Dieter, Sakamoto, Junji

“…Synthetic polymers are widely used materials, as attested by a production of more than 200 millions of tons per year, and are typically composed of linear…”
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Localization and segmentation of atomic columns in supported nanoparticles for fast scanning transmission electron microscopy by Eliasson, Henrik, Erni, Rolf

“…To accurately capture the dynamic behavior of small nanoparticles in scanning transmission electron microscopy, high-quality data and advanced data processing…”
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Atomic Scale Study on Growth and Heteroepitaxy of ZnO Monolayer on Graphene by Hong, Hyo-Ki, Jo, Junhyeon, Hwang, Daeyeon, Lee, Jongyeong, Kim, Na Yeon, Son, Seungwoo, Kim, Jung Hwa, Jin, Mi-Jin, Jun, Young Chul, Erni, Rolf, Kwak, Sang Kyu, Yoo, Jung-Woo, Lee, Zonghoon

“…Atomically thin semiconducting oxide on graphene carries a unique combination of wide band gap, high charge carrier mobility, and optical transparency, which…”
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Copper sulfide nanoparticles as high-performance cathode materials for Mg-ion batteries by Kravchyk, Kostiantyn V., Widmer, Roland, Erni, Rolf, Dubey, Romain J.-C., Krumeich, Frank, Kovalenko, Maksym V., Bodnarchuk, Maryna I.

“…Rechargeable magnesium batteries are appealing as safe, low-cost systems with high-energy-density storage that employ predominantly dendrite-free magnesium…”
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Direct Evidence of Surface Reduction in Monoclinic BiVO4 by Rossell, Marta D., Agrawal, Piyush, Borgschulte, Andreas, Hébert, Cécile, Passerone, Daniele, Erni, Rolf

“…Local measurements of the oxidation state of vanadium in monoclinic BiVO4 particles by means of electron energy-loss spectroscopy in scanning transmission…”
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Millisecond photonic sintering of iron oxide doped alumina ceramic coatings by Gilshtein, Evgeniia, Pfeiffer, Stefan, Rossell, Marta D., Sastre, Jordi, Gorjan, Lovro, Erni, Rolf, Tiwari, Ayodhya N., Graule, Thomas, Romanyuk, Yaroslav E.

“…The sintering of alumina (Al 2 O 3 ) traditionally occurs at high temperatures (up to ca. 1700 °C) and in significantly long times (up to several hours), which…”
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Magnetoelectric coupling in micropatterned BaTiO3/CoFe2O4 epitaxial thin film structures: Augmentation and site-dependency by Kim, Donghoon, Rossell, Marta D., Campanini, Marco, Erni, Rolf, Puigmartí-Luis, Josep, Chen, Xiang-Zhong, Pané, Salvador

“…The prominent magnetoelectric (ME) effect in ME composites usually originates from an interfacial strain-mediated coupling between ferroelectric and…”
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