Journal papers


Preprints

  • U. Aeberhard,
    Simulation of light propagation in thin semiconductor films with non-local electron-photon interaction,
    http://arxiv.org/abs/1308.3159

2025

  • Klaus Jäger, Urs Aeberhard, Esther Alarcon Llado, Benedikt Bläsi, Sven Burger, Bruno Ehrler, Wilfried Favre, Antonín Fejfar, Tristan Gageot, Ivan Gordon, Henning Helmers, Oliver Höhn, Olindo Isabella, Marko Jošt, Martin Ledinský, Jyotirmoy Mandal, Phillip Manley, Delfina Muñoz, Zunaid Omair, Juan Camilo Ortiz Lizcano, Ulrich W Paetzold, Aaswath P Raman, Hitoshi Sai, Rebecca Saive, Martina Schmid, Eli Yablonovitch, Christiane Becker
    Optics for terawatt-scale photovoltaics: review and perspectives,
    Advances in Optics and Photonics 17,185-294 (2025)

2024

  • S.J Zeder, B Blülle, B Ruhstaller, U. Aeberhard,
    Optical multiscale model for quantification of photon recycling including incoherent light scattering,
    Optics Express 32, 34154 (2024)
  • U. Aeberhard,N. Natsch, A. Schneider, S. J. Zeder, H. Carrillo-Nuñez, B. Blülle, B. Ruhstaller,
    Multi-Scale Simulation of Reverse-Bias Breakdown in All-Perovskite Tandem Photovoltaic Modules under Partial Shading Conditions,
    Solar RRL 8, 2400492 (2024)
  • U. Aeberhard, S. J. Zeder, B. Ruhstaller,
    Effects of Photon Recycling and Luminescent Coupling in All‐Perovskite Tandem Solar Cells Assessed by Full Opto‐Electronic Simulation,
    Solar RRL 8, 2400264 (2024)

2023

2022

  • U. Aeberhard, A. Schiller, Y. Masson, S. J. Zeder, B. Blülle, B. Ruhstaller,
    Analysis and optimization of organic tandem solar cells by full opto-electronic simulation,
    Frontiers in Photonics 3 (2022)

2021

  • U. Aeberhard, S. Zeder, B. Ruhstaller
    Reconciliation of dipole emission with detailed balance rates for the simulation of luminescence and photon recycling in perovskite solar cells,
    Optics Express 29, 14773 (2021)
  • F. Li, W. Duan, M. Pomaska, M. Köhler, K. Ding, Y. Pu, U. Aeberhard, U. Rau
    Quantum Transport across Amorphous-Crystalline Interfaces in Tunnel Oxide Passivated Contact Solar Cells: Direct versus Defect-Assisted Tunneling,
    Chinese Physics Letters 38 (3), 36301 (2021)

2020

  • S. Zeder, C. Kirsch, U. Aeberhard, B. Blülle, S. Jenatsch, B. Ruhstaller,
    Coupled 3D master equation and 1D drift‐diffusion approach for advanced OLED modeling,
    J. Soc. Inf. Disp. 28, 440-449 (2020)
  • A. Gonzalo, A. D. Utrilla, U. Aeberhard, V. Braza, D. F. Reyes, D. Fuertes Marrón, J. M. Llorens, B. Alén, T. Ben, D. González, A. Guzman, A. Hierro, J. M. Ulloa,
    Diluted nitride type-II superlattices: Overcoming the difficulties of bulk GaAsSbN in solar cells,
    Sol. Energy Mater. Sol. Cells 210, 110500 (2020)

2019

2018

  • P. Czaja, M. Celino, S. Giusepponi, M. Gusso and U. Aeberhard,
    Ab initio study on localization and finite size effects in the structural, electronic, and optical properties of hydrogenated amorphous silicon
    Computational Materials Science 155, 159-168 (2018)
  • F Li, U. Aeberhard, H Wu, M Qiao, Y Li
    Global minimum beryllium hydride sheet with novel negative Poisson's ratio: first-principles calculations
    RSC Advances 8, 19432-19436 (2018)

2017

  • U. Aeberhard,
    Nano-Structure Solar Cells,
    in: Handbook of Optoelectronic Device Modelling and Simulation, pp. 441-447, Taylor&Francis Oct. 2017, Ed. J. Piprek doi:10.1201/9781315152318-20

2016

  • U. Aeberhard, P. Czaja, M. Ermes, B. E. Pieters, G. Chistiakova, K. Bittkau, A. Richter, K. Ding, S. Giusepponi, M. Celino
    Towards a multi-scale approach to the simulation of silicon hetero-junction solar cells,
    Journal of Green Engineering 5, 11-32 (2016)

2015

  • E. Moulin, T. C. M. Müller, M. Warzecha, A. Hoffmann, U. W. Paetzold and U. Aeberhard,
    Highly transparent front electrodes with metal fingers for p-i-n thin-film silicon solar cells,
    EPJ Photovoltaics 6, 60501 (2015)

2014

  • U. Aeberhard,
    Quantum-kinetic theory of steady-state photocurrent generation in thin films: Coherent versus incoherent coupling,
    Phys. Rev. B 89, 115303 (2014)

2013

  • K. Ding, U. Aeberhard, F. Finger, and U. Rau,
    Amorphous silicon oxide buffer layers for silicon heterojunction solar cells with microcrystalline silicon oxide contact layers,
    J. Appl. Phys. 113, 134501 (2013)
  • U. Aeberhard,
    Theoretical investigation of direct and phonon-assisted tunneling currents in InAlGaAs-InGaAs bulk and quantum well interband tunnel junctions for multijunction solar cells,
    Phys. Rev. B 87, 081302(R) (2013)

2012

  • U. Aeberhard,
    Non-equilibrium Green's function theory of excitonic effects in the photocurrent response of semiconductor nanostructures,
    Phys. Rev. B 86, 115317 (2012)
  • K. Ding, U. Aeberhard, O. Astakhov, U. Breuer, M. Beigmohamadi, S. Suckow, B. Berghoff, W. Beyer,
    F. Finger, R. Carius and U. Rau,
    Defect passivation by hydrogen reincorporation for silicon quantum dots in SiC/SiOx hetero-superlattice,
    J. Non-Cryst. Solids 358, 2145 (2012)

2011

  • T. C. M. Müller, E. Moulin and U. Aeberhard,
    Improvement of hydrogenated microcrystalline (μc−Si:H) single junction solar cells with upconverter at rear side,
    Energy Procedia 10, 76 (2011)
  • K.Ding, U. Aeberhard, O. Astakhov, F. Köhler, W.Beyer, F. Finger, R.Carius and U. Rau,
    Silicon quantum dot formation in SiC/SiOx hetero-superlattices,
    Energy Procedia 10, 249 (2011)

2005-2010

  • U. Aeberhard, K. Wakabayashi and M. Sigrist,
    Effect of spin-orbit coupling on zero-conductance resonances in asymmetrically coupled one-dimensional rings,
    Phys. Rev. B 72, 075328 (2005)

Conference proceedings

  • U. Aeberhard, M. Neukom, A. Schiller, S. Zuefle, S. Jenatsch, B. Bluelle, S. Altazin, L. Stepanova, E. Knapp, C. Kirsch, B. Ruhstaller,
    Computational device optimization and parameter extraction for perovskite-based solar cells
    Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IX, 11275, 112750B (2020)
  • U. Aeberhard, S. Altazin, L. Stepanova, A. Stous, B. Blülle, C. Kirsch, E.Knapp, B. Ruhstaller,
    Numerical optimization of organic and hybrid multijunction solar cells
    Proc. 46th IEEE PVSC, Chicago, June 2019
  • U. Aeberhard,
    Simulation of Thermal Photocarrier Escape in Quantum Well Solar Cells: Electron-Electron vs. Electron-Phonon Interaction
    Proc. 46th IEEE PVSC, Chicago, June 2019
  • U. Aeberhard,
    Simulation of absorption, photogeneration and carrier extraction in nanostructure-based and ultra-thin film solar cell devices beyond the classical picture
    Proc. SPIE,  published online
  • U. Aeberhard and U. Rau,
    Microscopic theory of absorption and emission in nanostructured solar cells: beyond the generalized Planck formula
    Proc. 24th EU PVSEC, Hamburg, 2009
  • U. Aeberhard and R.H. Morf,
    Photovoltaic properties of coupled quantum well structures: microscopic theory and numerical simulation
    Proc. 23rd EU PVSEC, Valencia, 2008)
  • U. Aeberhard and R.H. Morf,
    Microscopic Modelling of Quantum Well Solar Cells
    Proc. 22nd EU PVSEC, Milano, 2007
  • U. Aeberhard and R.H. Morf,
    Microscopic Modelling of Quantum Well Solar Cells
    SISPAD 07, Wien, 2007

Theses and book chapters

  • SJ Zeder, U. Aeberhard, B. Ruhstaller, W. Tress,
    Photon recycling in metal halide perovskites: Its modeling and relevance to optoelectronic devices,
    in: Metal Halide Perovskites for Generation, Manipulation and Detection of Light, pp. 507-545, Elsevier, 2023, 10.1016/B978-0-323-91661-5.00001-5
  • U. Aeberhard,
    Nano-Structure Solar Cells,
    in: Handbook of Optoelectronic Device Modelling and Simulation, pp. 441-447, Taylor&Francis Oct. 2017, Ed. J. Piprek, doi:10.1201/9781315152318-20
  • U. Aeberhard and R.H. Morf,
    Photovoltaic Effects in Quantum Confined Systems: Microscopic Theory and Numerical Simulation
    Chapter 4 of: "Physics of Nanostructured Solar Cells", Nova Science Publishers, 2010
  • U. Aeberhard,
    A Microscopic Theory of Quantum Well Photovoltaics,
    (PhD thesis, ETH Zuerich, 2008)

Presentations at international conferences and workshops:

Invited talks

  • Simulation of advanced-concept solar cells beyond the limitations of the drift-diffusion picture
    (AMaSiS workshop, Berlin, 12.09.2024).
  • Advanced simulation of perovskite-based tandem solar cells
    (SPIE Photonics West 2023, San Francisco (USA), 30.01.2023)
  • Simulation of photon recycling in thin film solar cells - from non-equilibrium Green's functions to luminescent coupling in perovskite-based tandems (UW-Madison's Grainger Institute Computing in Engineering Forum 2022, online, 20.09.2022)
  • Quantum Transport with Light-Matter Interaction (CECAM workshop on Quantum Transport Methods and Algorithms: From Particles to Waves Approaches, Zürich, 08.07.2022)
  • Computational device optimization and parameter extraction for perovskite-based solar cells
    (SPIE Photonics West OPTO 2020, 05.02.2020)
  • Computational characterization of passivated contacts for silicon solar cells
    (Renewable Energy meets HPC: Final conference of EoCoE, Nicosia, Cyprus, 17.09.2018)
  • Microscopic Simulation of Recombination & Transport at Heterointerfaces in Solar Cells
    (SimOEP18, Winterthur, 05.09.2018)
  • NEGF Theory of Photovoltaics at the Nanoscale - Progress & Challenges
    (PNGFVII, Frascati, Italy, 30.08.2018)
  • A quantum-kinetic perspective on PV device operation in nanostructure-based solar cells
    (MRS Spring Meeting, Phoenix, 21.04.2017)
  • Multi-scale simulation of nanostructure-based solar cell devices
    (SLQM opening workshop, FZ Jülich, 04.04.2017)
  • Photovoltaic reciprocity and quasi-Fermi level splitting in nanostructure-based solar cells
    (SPIE Photonics West OPTO, 01.02.2017)
  • Quasi-ballistic hot-carrier transport in ultrathin solar cells
    (HEMP 2016 workshop, Imperial College London,15.09.2016)
  • NEGF theory of photovoltaics at the nanoscale - from quantum fields to solar cell characteristics
    (Invited seminar at Bremen Center for Computational Materials Science, 02.05.2016)
  • Simulation of nanostructure-based solar cells beyond the limits of the semiclassical approximation
    (Theory and Modelling for PV, Univ. Aix-Marseille, 01.10.2015)
  • Nonequilibrium Green's function theory of nanostructure solar cells
    (PNGF VI conference, Lund University, 21.08.2015)
  • Keldysh theory of photovoltaics at the nanoscale - from quantum fields to solar cell characteristics
    (LOMA Seminar, University of Bordeaux, 15.05.2015)
  • Radiative subband transitions in quantum photovoltaic device architectures
    (HEMP 2014 workshop, Imperial College London, 22.07.2014)
  • Nonequilibrium Green's functions for optoelectronic devices
    (NEWLED workshop, University of Rome Tor Vergata, 09.04.2014)
  • Simulation of absorption, photogeneration and carrier extraction in nanostructure based and
    ultra-thin film solar cell devices beyond the classical picture
    (SPIE Photonics West, San Francisco, 02.02.2014)
  • Mesoscopic simulation of charge carrier photogeneration and extraction in nanostructure-based solar cell devices
    (NESEC workshop, PROMES/Université de Perpignan, 11.12.2012)
  • Simulation of direct and phonon-assisted tunneling currents in bulk and quantum well interband tunnel junctions for multijunction solar cells
    (HEMP 2012 workshop, Imperial College London, 18.09.2012)
  • Quantum-kinetic theory of nanostructure based photovoltaic devices
    (IWCE 2012, Madison, 23.05.2012)
  • Quantum-kinetic theory of nanostructure based photovoltaic devices
    (IRDEP/Chimie ParisTech, Paris, 17.02.2012)
  • Quantum-kinetic theory of nanostructure based photovoltaic devices
    (CSE seminar at STFC Daresbury Laboratory, 17.01.2012)
  • Towards an effective microscopic theory of quantum dot solar cells
    (High efficiency materials for photovoltaics workshop, Imperial College London, 11.08.2011)
  • Microscopic theory and numerical simulation of quantum well solar cells
    (SPIE Photonics West 2010, San Francisco, 25.01.2010)
  • Microscopic theory of coupled quantum well structures in photovoltaics
    (MRS spring meeting 2008, San Francisco, 25.03.2008)

Contributed talks

  • Simulation of Reverse-Bias Breakdown in All-Perovskite Tandem Solar Cells and its Impact on Module Performance under Partial Shading Conditions,
    (PVSEC-35, Numazu, 14.11.2024)
  • Multi-Scale Simulation of Non-Idealities in All-Perovskite Tandem Photovotaic Modules,
    (EU PVSEC, Vienna, 25.09.2024)
  • Multi-Scale Simulation of Reverse-Bias Breakdown in All-Perovskite Tandem Photovoltaic Modules under Partial Shading Conditions,
    (SimOEP 2024, ZHAW Winterthur, 02.09.2024)
  • Modelling Reverse-Bias Breakdown in All-Perovskite Tandem Modules under Partial Shading Conditions,
    (Tandem PV workshop, Amsterdam, 27.06.2024)
  • Simulation-Based Loss Analysis & Optimization of All-Perovskite Tandem Solar Cells & Modules,
    (EU PVSEC, Lisboa, 20.9.2023)
  • Role of Contacts in the Operation of Valley-Photovoltaic Devices,
    (EU PVSEC, Lisboa 18.09.2023)
  • Quantum transport simulation of valley-photovoltaic devices
    (SPIE Photonics West 2023, San Francisco, 31.01.2023)
  • Impact of photon recycling on the light extraction from metal halide perovskite light emitting diodes
    (SimOEP 2022, Winterthur, 08.09.2022)
  • Photon recycling and luminescent coupling in all-perovskite tandem solar cells quantified by full opto-electronic device simulation
    (2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), Philadelphia)
  • Simulation of hot-carrier filtering in InAs-InP nanowire heterostructures
    (2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), Philadelphia)
  • Photon Recycling and Luminescent Coupling in All-Perovskite Tandem Solar Cells Assessed by Full Opto-Electronic Device Simulation
    (2nd Tandem PV Workshop, Freiburg, 31.5.2022)
  • Photon Recycling and Luminescent Coupling in all-Perovksite Tandem Solar Cells Assessed by a Full Optoelectronic Simulation
    (NanoGe Spring Meeting 2022, online)
  • Rigorous simulation of photon recycling effects in perovskite solar cells and LEDs
    (2021 International Conference on Numerical Simulation of Optoelectronic Devoces (NUSOD), online).
  • Photon recycling in perovskite solar cells assessed by a detailed-balance compatible dipole emission model
    (2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), online)
  • Computational assessment of photon recycling in ultra-thin GaAs solar cells
    (2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), online).
  • Microscopic simulation of hot carrier effects in quantum well solar cells
    (SPIE Photonics West OPTO 2020, 04.02.2020)
  • Numerical Optimization of Organic and Hybrid Multijunction Solar Cells
    (46th IEEE PVSC Chicago, 17.06.2019)
  • Computational characterization of pasivating contacts for silicon solar cells
    (EERA-AMPEA-EoCoE Joint Workshop, Brussels, 07.06.2018)
  • Computational investigation of quantum well superlattice solar cells
    (Spring Meeting of the German Physical Society, Berlin, 12.03.2018)
  • Computational challenges in the NEGF simulation of mesoscopic solar cell components
    (Euro-TMCS II, Cork, Ireland, 09.12.2016)
  • Simulation of Ultra-thin Solar Cells Beyond the Limits of the Semi-classical Bulk Picture
    (43rd IEEE PVSC, Portland, USA, 10.6.2016)
  • Towards a multi-scale approach to the simulation of silicon heterojunction solar cells
    (MultiscaleSolar workshop, Valencia, Spain, 04.11.2015)
  • Photovoltaics at the nanoscale: limits of the semiclassical bulk picture
    (HEMP 2015, London, UK, 11.09.2015)
  • Quantum-kinetic theory of non-radiative processes in nanostructures for photovoltaic energy conversion
    (Euro-TMCS I 2015, Granada, Spain, 30.01.2015)
  • Fluorescence spectra of colloidal QD: impact of QD configuration and carrier dynamics
    (TMCS IV 2014, Salford, UK, 24.01.2014)
  • Photon Green's functions for a consistent theory of absorption and emission in nanostructure-based solar cell devices
    (NUSOD 2013, Vancouver, Canada, 19.08.2013)
  • Rigorous Simulation of InAlGaAs-InGaAs Bulk and Quantum Well Tunnel Junctions for Multijunction Solar Cells
    (IEEE PVSC 39, Tampa FL, USA, 17.06.2013)
  • Quantum-kinetic Theory of Defect-mediated Recombination in Nanostructure-based Photovoltaic Devices
    (MRS Fall Meeting 2012, Boston, 27.11.2012)
  • Quantum-kinetic theory of nanostructure based photovoltaic devices
    (NREL, Golden, 21.5.2012)
  • NEGF theory of quantum-dot fluorescence
    (TMCS III workshop 2012, Leeds, 19.1.2012)
  • Effective microscopic theory of quantum dot superlattice solar cells
    (NUSOD conference 2011, Rome, 7.9.2011)
  • Theory and simulation of charge carrier photogeneration and transport in silicon quantum dot superlattices
    (E-MRS Spring Meeting & Bilateral Energy Conference 2011, Nice, 11.05.2011)
  • Quantum-kinetic theory and numerical simulation of photogeneration and transport in Si-SiOx superlattice absorbers
    (E-MRS Fall Meeting 2010, Warsaw, 14.10.2010)
  • Non-Equilibrium Green's Function Theory of Quantum Photovoltaic Devices
    (CECAM workshop on empirical methods in semiconductor nano-structure
    design and modeling , Manchester University, 25.06.2010)
  • Theory and Simulation of Quantum Photovoltaic Devices
    (3rd Generation Photovoltaics Symposium, HWU Edinburgh, 26.05.2010)
  • Quantum-kinetic theory of  photovoltaic devices with low-dimensional absorbers
    (Talk at the ITP ETH Zürich, 17.03.2010)
  • Quantum-kinetic theory of  photovoltaic devices with low-dimensional absorbers
    (Talk at the Quantsol Workshop 2010, Brigels CH, 10.03.2010)
  • Theory and Simulation of Quantum Photovoltaic Devices
    (24th Umbrella Symposium, Forschungszentrum Jülich, 19.01.2010)
  • Theory and simulation of quantum photovoltaic devices: challenges and strategies
    (Quantum Photovoltaics Group, Imperial College, London, 17.12.2009)
  • Spectral properties of photogenerated carriers in quantum well solar cells
    (E-MRS 2009, Strasbourg, 6. 2009)
  • Towards a microscopic theory of quantum well photovoltaics
    (Balents group meeting, UCSB, 19.03.2008)
  • Quantum well solar cells: microscopic theory and numerical simulation
    (CSULB Physics Colloquium, Long Beach, 17.03.2008)
  • Absorption and Photocurrent of semiconductor quantum wells: a multiband NEGF approach
    (APS march meeting, New Orleans, 12.03.2008)
  • Towards a Microscopic Non-Equilibrium Theory of Quantum Well Photovoltaics 
    (IHT, RWTH Aachen, 02.11.2007)
  • Microscopic Non-Equilibrium Theory of Quantum Well Solar Cells
    (Heraus Seminar 07, Bad Honnef, 31.10.2007)
  • Microscopic modelling of quantum well solar cells
    (SISPAD 07, TU Wien, 26.09.2007)
  • Microscopic modelling of quantum well solar cells
    (22nd EU PVSEC, Milano, 3.09.2007)
  • Microscopic Theory of Quantum Well Solar Cells
    (Imperial College, Quantum Photovoltaics Group, 8. 2007)
  • Microscopic modelling of quantum well solar cells
    (Quantsol, Bad Hofgastein, Austria, 3. 2007)
  • NEGF modelling of QWSC
    (APS march meeting, Denver, USA, 3.2007)

Posters

  • Theory and simulation of nanostructure-based high efficiency
    photovoltaic devices
    (Next generation solar energy II workshop, Erlangen, 9-11.12.13)
  • Non-equilibrium Green's function theory of excitonic effects in the photocurrent
    response of semiconductor nanostructures
    (HEMP 2012 workshop, Imperial College London, 17-18.9.12)
  • Microscopic theory of absorption and emission in nanostructured solar cells:
    beyond the generalized Planck formula
    (24th EU PVSEC, Hamburg, 21-25.9.09)
  • Photovoltaic properties of coupled quantum well structures: microscopic theory and
    numerical simulation
    (23rd EU PVSEC, Valencia, 1.-5.9.08)
  • Microscopic modelling of quantum well solar cells
    (SISPAD 2007, 24.9.-26.9.07,TU Wien)
  • Nonequilibrium Green's function modelling of quantum well solar cells
    (SPG Meeting 2007, 21.-22.2.07, University of Zurich)
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