output
20092025
most citedOn-surface synthesis of graphene nanoribbons with zigzag edge topology

1.5k citations

Showing 2020Show all

35 papers · 1 filter

gr-qc2020★ 4 cited

The gravitational Higgs mechanism and resulting smoking gun effects

Verena Krall, Andrew Coates, Kostas D. Kokkotas

Recently, a toy model was introduced to demonstrate that screening mechanisms in alternative theories of gravitation can hide additional effects. In this model a scalar field is ch…

nlin.AO2020★ 11 cited

Reconfigurable Computation in Spiking Neural Networks

Fabio Schittler Neves, Marc Timme

The computation of rank ordering plays a fundamental role in cognitive tasks and offers a basic building block for computing arbitrary digital functions. Spiking neural networks ha…

cond-mat.mes-hall2020★ 83 cited

Designer spin order in diradical nanographenes

Yuqiang Zheng, Can Li, Chengyang Xu +14

The magnetic properties of carbon materials are at present the focus of an intense research effort in physics, chemistry and materials science due to their potential applications i…

cond-mat.mes-hall2020★ 23 cited

Topological Hall effect arising from the mesoscopic and microscopic non-coplanar magnetic structure in MnBi

Yangkun He, Sebastian Schneider, Toni Helm +9

The topological Hall effect (THE), induced by the Berry curvature, which originates from non-zero scalar spin chirality, is an important feature for mesoscopic topological structur…

cs.AR2020★ 32 cited

ExPAN(N)D: Exploring Posits for Efficient Artificial Neural Network Design in FPGA-based Systems

Suresh Nambi, Salim Ullah, Aditya Lohana +3

The recent advances in machine learning, in general, and Artificial Neural Networks (ANN), in particular, has made smart embedded systems an attractive option for a larger number o…

physics.app-ph2020★ 56 cited

Revealing the internal luminescence quantum efficiency of perovskite films via accurate quantification of photon recycling

Paul Fassl, Vincent Lami, Felix J. Berger +6

The internal luminescence quantum efficiency () provides an excellent assessment of the optoelectronic quality of semiconductors. To determine $Q_\mathrm…

physics.soc-ph2020★ 18 cited

Social distancing in pedestrian dynamics and its effect on disease spreading

Sina Sajjadi, Alireza Hashemi, Fakhteh Ghanbarnejad

Non-pharmaceutical measures such as social distancing, can play an important role to control an epidemic in the absence of vaccinations. In this paper, we study the impact of socia…

cond-mat.mtrl-sci2020★ 91 cited

Are Shockley-Read-Hall and ABC models valid for lead halide perovskites?

Alexander Kiligaridis, Pavel Frantsuzov, Aymen Yangui +5

Metal halide perovskites are an important class of emerging semiconductors. Their charge dynamics is poorly understood due to limited knowledge of defect physics and charge recombi…

cond-mat.mes-hall2020★ 6 cited

Surface phonon induced rotational dissipation for nanoscale solid-state gears

Huang-Hsiang Lin, Alexander Croy, Rafael Gutierrez +1

Compared to nanoscale friction of translational motion, the mechanisms of rotational friction have received less attention. Such motion becomes an important issue for the miniaturi…

physics.soc-ph2020★ 6 cited

Traffic flow splitting from crowdsourced digital route choice support

David-Maximilian Storch, Malte Schröder, Marc Timme

Digital technology is fundamentally transforming human mobility. Route choices in particular are greatly affected by the availability of traffic data, increased connectivity of dat…

physics.soc-ph2020★ 59 cited

Incentive-driven transition to high ride-sharing adoption

David-Maximilian Storch, Marc Timme, Malte Schröder

Ride-sharing - the combination of multiple trips into one - may substantially contribute towards sustainable urban mobility. It is most efficient at high demand locations with many…

physics.app-ph2020★ 28 cited

Energy Level Alignment in Ternary Organic Solar Cells

Vincent Lami, Yvonne J. Hofstetter, Julian F. Butscher +1

Ternary organic solar cells (TOSC) are currently under intensive investigation, recently reaching a record efficiency of 17.1%. The origin of the device open-circuit voltage (VOC),…

physics.app-ph2020★ 171 cited

Shining Light on Photoluminescence Properties of Metal Halide Perovskites

Katelyn P. Goetz, Alexander D. Taylor, Fabian Paulus +1

Lead halide perovskites are a remarkable class of materials that have emerged over the past decade as being suitable for application in a broad range of devices, such as solar cell…

physics.app-ph2020★ 65 cited

Sequentially Deposited versus Conventional Nonfullerene Organic Solar Cells: Interfacial Trap States, Vertical Stratification, and Exciton Dissociation

Jiangbin Zhang, Moritz H. Futscher, Vincent Lami +16

Bulk-heterojunction (BHJ) non-fullerene organic solar cells prepared from sequentially deposited donor and acceptor layers (sq-BHJ) have recently been promising to be highly effici…

cond-mat.mtrl-sci2020★ 30 cited

Understanding the UV luminescence of zinc germanate: The role of native defects

Jaime Dolado, Ruth Martínez-Casado, Pedro Hidalgo +6

Achieving efficient and stable ultraviolet emission is a challenging goal in optoelectronic devices. Herein, we investigate the UV luminescence of zinc germanate Zn2GeO4 microwires…

physics.app-ph2020★ 103 cited

Insights from Device Modeling of Perovskite Solar Cells

Nir Tessler, Yana Vaynzof

In this perspective, we explore the insights into the device physics of perovskite solar cells gained from modeling and simulation of these devices. We discuss a range of factors t…

physics.app-ph2020★ 10 cited

Dipolar Hole-Blocking Layers for Inverted Perovskite Solar Cells: Effects of Aggregation and Electron Transport Levels

Julian F. Butscher, Qing Sun, Yufeng Wu +7

Herein, we report on the synthesis and investigation of two triazino-isoquinoline tetrafluoroborate electrolytes as hole-blocking layers in methylammonium triiodide perovskite phot…

physics.app-ph2020★ 37 cited

Enhancing the Open-Circuit Voltage of Perovskite Solar Cells by Embedding Molecular Dipoles within their Hole-Blocking Layer

Julian F. Butscher, Sebastian Intorp, Joshua Kress +7

Engineering the energetics of perovskite photovoltaic devices through the deliberate introduction of dipoles to control the built-in potential of the devices offers the opportunity…

physics.app-ph2020★ 81 cited

Efficient and Stable PbS Quantum Dot Solar Cells by Triple-Cation Perovskite Passivation

Miguel Albaladejo-Siguan, David Becker-Koch, Alexander D. Taylor +5

Solution-processed quantum dots (QDs) have a high potential for fabricating low cost, flexible and large-scale solar energy harvesting devices. It has recently been demonstrated th…

physics.app-ph2020★ 40 cited

Energy Transfer to a Stable Donor Suppresses Degradation in Organic Solar Cells

Andreas Weu, Rhea Kumar, Julian F. Butscher +4

Despite many advances towards improving the stability of organic photovoltaic devices, environmental degradation under ambient conditions remains a challenging obstacle for future…

physics.app-ph2020★ 61 cited

Top-down fabricated reconfigurable FET with two symmetric and high-current on-states

Maik Simon, Boshen Liang, Dustin Fischer +4

We demonstrate a top-down fabricated reconfigurable field effect transistor (RFET) based on a silicon nanowire that can be electrostatically programmed to p- and n-configuration. T…

q-bio.PE2020★ 17 cited

Discontinuous epidemic transition due to limited testing

Davide Scarselli, Nazmi Burak Budanur, Marc Timme +1

High impact epidemics constitute one of the largest threats humanity is facing in the 21st century. Testing, contact tracing and quarantining are critical in slowing down epidemic…

physics.soc-ph2020★ 61 cited

Open data base analysis of scaling and spatio-temporal properties of power grid frequencies

Leonardo Rydin Gorjão, Richard Jumar, Heiko Maass +7

The electrical energy system has attracted much attention from an increasingly diverse research community. Many theoretical predictions have been made, from scaling laws of fluctua…

physics.app-ph2020★ 7 cited

Top Dielectric Induced Ambipolarity in an n-channel dual-gated Organic Field Effect Transistor

Kaushik Bairagi, Elisabetta Zuccatti, Francesco Calavalle +6

The realization of both p-type and n-type operations in a single organic field effect transistor (OFET) is critical for simplifying the design of complex organic circuits. Typicall…