Prof. Dr. Beat Ruhstaller

ZHAW School of Engineering
Forschungsschwerpunkt Organic Electronics & Photovoltaics
Technikumstrasse 71
8400 Winterthur

+41 (0) 58 934 78 36
beat.ruhstaller@zhaw.ch

Arbeit an der ZHAW

Leitungsfunktion

Schwerpunktleitung Organische Elektronik und Photovoltaik

Tätigkeit an der ZHAW

- Leitung des Schwerpunkts Organische Elektronik und Photovoltaik (OEPHO) am ICP
- Dozent für die Fächer "Organische Elektronik und Photovoltaik", "Simulation mechatronischer Systeme", "Einführung in die Mikrosystemtechnik", "CAE in Sensorik und Aktorik", "Applied Photonics", "Physik für Unternehmensinformatiker", "Physik für Verkehrssysteme"

www.zhaw.ch/icp/oepho

Aus- und Weiterbildung

Arbeits- und Forschungsschwerpunkte, Spezialkenntnisse

(Aktualisierte Publikationsliste und Citation Index ist auf Google Scholar verfügbar.)

Publikationen seit 2007 (Publications since 2007)

Book Chapters

[1] B. Ruhstaller, E. Knapp, B. Perucco, N. Reinke, D. Rezzonico and F. Müller, "Advanced Numerical Simulation of Organic Light-emitting Devices", Optoelectronic Devices and Properties, Oleg Sergiyenko (Ed.), ISBN 978-953-307-204-3, (2011)

Peer-reviewed Articles (since 2007)

[2] T. Lanz, M. Bonmarin, M. Stückelberger, C. Schlumpf, C. Ballif, B. Ruhstaller, "Electro-Thermal Finite Element Modeling for Defect Characterization in Thin-Film Silicon Solar Modules", IEEE J. Sel. Topics in Quantum Electronics 99, 1-1 (2013)

[3] M.T. Neukom, S. Züfle, B. Ruhstaller, "Reliable extraction of organic solar cell parameters by combining steady-state and transient techniques", Organic Electronics 13, 2910 (2012)

[4] E. Knapp, B. Ruhstaller, "The role of shallow traps in dynamic characterization of organic semiconductor devices", J. Appl. Phys. 112 (2), 024519-024519-6 (2012)

[5] T. Lanz, L. Fang, S.-J. Baik, K.S. Lim, B. Ruhstaller, "Photocurrent increase in amorphous Si solar cells by increased reflectivity of LiF/Al electrodes", Solar Energy Materials and Solar Cells (2012)

[6] B. Perucco, N.A. Reinke, D. Rezzonico, E. Knapp, S. Harkema, B. Ruhstaller, "On the exciton profile in OLEDs-seamless optical and electrical modeling", Organic Electronics 13 (2012)

[7] E. Knapp and B. Ruhstaller, “Numerical impedance analysis for organic semiconductors with exponential density of localized states”, Appl. Phys. Lett. 99, 093304 (2011)

[8] T. Lanz, B. Ruhstaller, C. Battaglia, and C. Ballif, "Extended light scattering model incorporating coherence for thin-film silicon solar cells", Journal of Applied Physics 110, 033111 (2011)

[9] M. Neukom, N.A. Reinke, B. Ruhstaller, "Charge extraction with linearly increasing voltage: A numerical model for parameter extraction", Solar Energy 85, 6, 1250-1256 (2011)

[10] E. Knapp and B. Ruhstaller, "Numerical analysis of steady-state and transient charge transport in organic semiconductor devices", Optical and Quantum Electronics, (2011)

[11] D. Rezzonico, B. Perucco, E. Knapp, R. Häusermann, N.A. Reinke, F. Müller, and B. Ruhstaller, "Numerical analysis of exciton dynamics in organic light-emitting devices and solar cells", Journal of Photonics for Energy, 1, 011005-1-11, (2011)

[12] T. Lanz, B. Ruhstaller, C. Battaglia, F.-J. Haug, C. Ballif, "Light scattering model for optical simulation of thin film solar cells", Proceeding of the 5th European Photovoltaic Solar Energy Conference and Exhibition, Valencia, Spain - Reference Number : 3AV.1.21, (2010)

[13] E. Knapp, R. Häusermann, H. U. Schwarzenbach and B. Ruhstaller, "Numerical simulation of charge transport in disordered organic semiconductor devices", Journal of Applied Physics, 108, 054504-0545012, (2010)

[14] M. Neukom, N.A. Reinke, K.A. Brossi, B. Ruhstaller, "Transient Photocurrent Response of Organic Bulk Heterojunction Solar Cells", Proceeding SPIE 7722 30, (2010)

[15] B. Perucco, N.A. Reinke, F. Müller, D. Rezzonico, B. Ruhstaller, "The influence of the optical environment on the emission profile and methods of its determination", Proceeding SPIE 7722 14, (2010)

[16] B. Perucco, N. A. Reinke, D. Rezzonico, M. Moos, and B. Ruhstaller, "Analysis of the emission profile in organic light-emitting devices", Optics Express, 18 (S2), A246-A260, (2010)

[17] R. Häusermann, E. Knapp, M. Moos, N. A. Reinke, Th. Flatz, and B. Ruhstaller, "Coupled optoelectronic simulation of organic bulk-heterojunction solar cells: Parameter extraction and sensitivity analysis", J. Appl. Phys. 106, 10450 (2009)

[18] T. Lanz, B. Perucco, D. Rezzonico, F. Müller, N. A. Reinke, R. Häusermann, B. Ruhstaller, "Optical simulation of arbitrary thin film solar cells with rough interfaces", Proceedings of the 4th European Photovoltaic Solar Energy Conference and Exhibition, Paper 3BV.4.57, Hamburg, Germany, (2009)

[19] B. Ruhstaller, T. Flatz, D. Rezzonico, M. Moos, N. Reinke, E. Huber, R. Häusermann, B. Perucco, "Comprehensive simulation of light-emitting and light-harvesting organic devices", Proceedings of the SPIE Photonics Conference, San Diego, 7051, J510, ISBN 9780819472717 (2008)

[20] B. Ruhstaller, T. Flatz, M. Moos et al., "Optoelectronic OLED modeling for device optimization and analysis”, Society for Information Display (SID) International Symposium Digest of Technical Papers, 38, 1686-1690 (2007)

Beruflicher Werdegang

1997 - 2000 Research Assistant, University of California Santa Cruz
2000 - 2002 Postdoctoral Researcher, IBM Zurich Research Laboratory
2002 - 2004 Wissenschaftlicher Mitarbeiter, Zürcher Hochschule Winterthur
2003 - 2004 Lehrbeauftragter für Physik, Hochschule für Technik Rapperswil
2007 Gründer der Fluxim AG
ab 2004 Dozent für Modellbildung und Simulation, Zürcher Hochschule Winterthur
2007 - 2010 Institutsleiter ICP
ab 2011 Geschäftsleiter und VRP der Fluxim AG
2011 - 2018 Stv. Institutsleiter ICP
ab 2021 Experte für Innosuisse

Aus- und Fortbildung

1997 Dipl. Phys. ETH
1998 M.Sc. in Physics, University of California Santa Cruz
2000 Ph.D. in Physics, University of California Santa Cruz
2006 Executive MBA, Zurich University of Applied Sciences

Mitglied in Netzwerken

Projekte

Publikationen

Beiträge in wissenschaftlicher Zeitschrift, peer-reviewed

Battaglia, Mattia; Comi, Ennio; Stadelmann, Thilo; Hiestand, Roman; Ruhstaller, Beat; Knapp, Evelyne,

2023.

Deep ensemble inverse model for image-based estimation of solar cell parameters.

APL Machine Learning.

1(3), S. 036108.

Verfügbar unter: https://doi.org/10.1063/5.0139707
Kissling, Gabriela P.; Ruhstaller, Beat; Pernstich, Kurt P.,

2023.

Measuring frontier orbital energy levels of OLED materials using cyclic voltammetry in solution.

Organic Electronics.

122(106888).

Verfügbar unter: https://doi.org/10.1016/j.orgel.2023.106888
Sem, Stefano; Jenatsch, Sandra; Stavrou, Kleitos; Danos, Andrew; Monkman, Andrew P.; Ruhstaller, Beat,

2022.

Determining non-radiative decay rates in TADF compounds using coupled transient and steady state optical data.

Journal of Materials Chemistry C.

10(12), S. 4878-4885.

Verfügbar unter: https://doi.org/10.1039/D1TC05594A
Zeder, Simon; Ruhstaller, Beat; Aeberhard, Urs,

2022.

Assessment of photon recycling in perovskite solar cells by fully coupled optoelectronic simulation.

Physical Review Applied.

17(1), S. 014023.

Verfügbar unter: https://doi.org/10.1103/PhysRevApplied.17.014023
Aeberhard, Urs; Schiller, Andreas; Masson, Yannick; Zeder, Simon J.; Blülle, Balthasar; Ruhstaller, Beat,

2022.

Analysis and optimization of organic tandem solar cells by full opto-electronic simulation.

Frontiers in Photonics.

3(891565).

Verfügbar unter: https://doi.org/10.3389/fphot.2022.891565
Aeberhard, Urs; Zeder, Simon J.; Ruhstaller, Beat,

2022.

Impact of photon recycling on the light extraction from metal halide perovskite light emitting diodes.

Optical and Quantum Electronics.

54(10), S. 617.

Verfügbar unter: https://doi.org/10.1007/s11082-022-03791-9
Regnat, Markus; Moon, Chang-Ki; Jenatsch, Sandra; Ruhstaller, Beat; Pernstich, Kurt P.,

2022.

Pinpointing the origin of the increased driving voltage during prolonged operation in a phosphorescent OLED based on an exciplex host.

Organic Electronics.

108(106570).

Verfügbar unter: https://doi.org/10.1016/j.orgel.2022.106570
Aeberhard, Urs; Zeder, Simon; Ruhstaller, Beat,

2021.

Reconciliation of dipole emission with detailed balance rates for the simulation of luminescence and photon recycling in perovskite solar cells.

Optics Express.

29(10), S. 14773-14788.

Verfügbar unter: https://doi.org/10.1364/OE.424091
Comi, Ennio; Knapp, Evelyne; Weidmann, Stefano; Kirsch, Christoph; Jenatsch, Sandra; Hiestand, Roman; Ruhstaller, Beat,

2021.

Sinusoidal small-signal (AC) and steady-state (DC) analysis of large-area solar cells.

Solar Energy Advances.

1(100003).

Verfügbar unter: https://doi.org/10.1016/j.seja.2021.100003
Diethelm, Matthias; Penninck, Lieven; Regnat, Markus; Offermans, Ton; Zimmermann, Birger; Kirsch, Christoph; Hiestand, Roman; Altazin, Stéphane; Ruhstaller, Beat,

2020.

Finite element modeling for analysis of electroluminescence and infrared images of thin-film solar cells.

Solar Energy.

209, S. 186-193.

Verfügbar unter: https://doi.org/10.1016/j.solener.2020.08.058
Zeder, Simon; Kirsch, Christoph; Aeberhard, Urs; Blülle, Balthasar; Jenatsch, Sandra; Ruhstaller, Beat,

2020.

Coupled 3D master equation and 1D drift‐diffusion approach for advanced OLED modeling.

Journal of the Society for Information Display.

28(5), S. 440-449.

Verfügbar unter: https://doi.org/10.1002/jsid.903
Jenatsch, Sandra; Züfle, Simon; Blülle, Balthasar; Ruhstaller, Beat,

2020.

Combining steady-state with frequency and time domain data to quantitatively analyze charge transport in organic light-emitting diodes.

Journal of Applied Physics.

127(3).

Verfügbar unter: https://doi.org/10.1063/1.5132599
Jagielski, Jakub; Solari, Simon F.; Jordan, Lucie; Scullion, Declan; Blülle, Balthasar; Li, Yen-Ting; Krumeich, Frank; Chiu, Yu-Cheng; Ruhstaller, Beat; Santos, Elton J. G.; Shih, Chih-Jen,

2020.

Scalable photonic sources using two-dimensional lead halide perovskite superlattices.

Nature Communications.

11(1).

Verfügbar unter: https://doi.org/10.1038/s41467-019-14084-3
Hofmann, Alexander J.L.; Züfle, Simon; Shimizu, Kohei; Schmid, Markus; Wessels, Vivien; Jäger, Lars; Altazin, Stéphane; Ikegami, Keitaro; Khan, Motiur Rahman; Neher, Dieter; Ishii, Hisao; Ruhstaller, Beat; Brütting, Wolfgang,

2019.

Dipolar doping of organic semiconductors to enhance carrier injection.

Physical Review Applied.

12(6), S. 064052.

Verfügbar unter: https://doi.org/10.1103/PhysRevApplied.12.064052
Regnat, Markus; Pernstich, Kurt P.; Kim, Kwon‐Hyeon; Kim, Jang‐Joo; Nüesch, Frank; Ruhstaller, Beat,

2019.

Routes for efficiency enhancement in fluorescent TADF exciplex host OLEDs gained from an electro‐optical device model.

Advanced Electronic Materials.

6(2), S. 1900804.

Verfügbar unter: https://doi.org/10.1002/aelm.201900804
Diethelm, Matthias; Schiller, Andreas; Kawecki, Maciej; Devižis, Andrius; Blülle, Balthasar; Jenatsch, Sandra; Knapp, Evelyne; Grossmann, Quirin; Ruhstaller, Beat; Nüesch, Frank; Hany, Roland,

2019.

The dynamic emission zone in sandwich polymer light‐emitting electrochemical cells.

Advanced Functional Materials.

2019(1906803).

Verfügbar unter: https://doi.org/10.1002/adfm.201906803
Regnat, Markus; Pernstich, Kurt; Ruhstaller, Beat,

2019.

Influence of the bias-dependent emission zone on exciton quenching and OLED efficiency.

Organic Electronics.

70, S. 219-226.

Verfügbar unter: https://doi.org/10.1016/j.orgel.2019.04.027
Neukom, Martin T.; Schiller, Andreas; Züfle, Simon; Knapp, Evelyne; Ávila, Jorge; Pérez-del-Rey, Daniel; Dreessen, Chris; Zanoni, Kassio P.S.; Sessolo, Michele; Bolink, Henk J.; Ruhstaller, Beat,

2019.

Consistent device simulation model describing perovskite solar cells in steady-state, transient, and frequency domain.

ACS Applied Materials & Interfaces.

11(26), S. 23320-23328.

Verfügbar unter: https://doi.org/10.1021/acsami.9b04991
Regnat, Markus; Pernstich, Kurt P.; Züfle, Simon; Ruhstaller, Beat,

2018.

Analysis of the bias-dependent split emission zone in phosphorescent OLEDs.

ACS Applied Materials & Interfaces.

10(37), S. 31552-31559.

Verfügbar unter: https://doi.org/10.1021/acsami.8b09595
Fluhr, Daniel; Züfle, Simon; Muhsin, Burhan; Öttking, Rolf; Seeland, Marco; Roesch, Roland; Schubert, Ulrich S.; Ruhstaller, Beat; Krischok, Stefan; Hoppe, Harald,

2018.

Aluminum electrode insulation dynamics via interface oxidation by reactant diffusion in organic layers.

Physica status solidi A.

215(23).

Verfügbar unter: https://doi.org/10.1002/pssa.201800474
Altazin, Stéphane; Stepanova, L.; Werner, J.; Niesen, B.; Ballif, C.; Ruhstaller, B.,

2018.

Design of perovskite/crystalline-silicon monolithic tandem solar cells.

Optics Express.

26(10), S. A579-A590.

Verfügbar unter: https://doi.org/10.1364/OE.26.00A579
Neukom, Martin; Züfle, Simon; Jenatsch, Sandra; Ruhstaller, Beat,

2018.

Opto-electronic characterization of third-generation solar cells.

Science and Technology of Advanced Materials.

19(1), S. 291-316.

Verfügbar unter: https://doi.org/10.1080/14686996.2018.1442091
Wang, Lei; Jenatsch, Sandra; Ruhstaller, Beat; Hinderling, Christian; Gesevičius, Donatas; Hany, Roland; Nüesch, Frank,

2018.

Organic salt semiconductor with high photoconductivity and long carrier lifetime.

Advanced Functional Materials.

28(16), S. 1705724.

Verfügbar unter: https://doi.org/10.1002/adfm.201705724
Jenatsch, Sandra; Altazin, Stéphane; Will, Paul Anton; Neukom, Martin T.; Knapp, Evelyne; Züfle, Simon; Lenk, Simone; Reineke, Sebastian; Ruhstaller, Beat,

2018.

Quantitative analysis of charge transport in intrinsic and doped organic semiconductors combining steady-state and frequency-domain data.

Journal of Applied Physics.

124(105501).

Verfügbar unter: https://doi.org/10.1063/1.5044494
Diethelm, Matthias; Penninck, Lieven; Altazin, Stéphane; Hiestand, Roman; Kirsch, Christoph; Ruhstaller, Beat,

2018.

Quantitative analysis of pixel crosstalk in AMOLED displays.

Journal of Information Display.

19(2), S. 61-69.

Verfügbar unter: https://doi.org/10.1080/15980316.2018.1428232
Altazin, Stéphane; Kirsch, Christoph; Knapp, Evelyne; Stous, Alexandre; Ruhstaller, Beat,

2018.

Refined drift-diffusion model for the simulation of charge transport across layer interfaces in organic semiconductor devices.

Journal of Applied Physics.

124(13), S. 135501.

Verfügbar unter: https://doi.org/10.1063/1.5043245
Züfle, Simon; Altazin, Stéphane; Hofmann, Alexander; Jäger, Lars; Neukom, Martin T.; Brütting, Wolfgang; Ruhstaller, Beat,

2017.

Determination of charge transport activation energy and injection barrier in organic semiconductor devices.

Journal of Applied Physics.

122(115502).

Verfügbar unter: https://doi.org/10.1063/1.4992041
Züfle, Simon; Altazin, Stéphane; Hofmann, Alexander; Jäger, Lars; Neukom, Martin; Schmidt, Tobias D.; Brütting, Wolfgang; Ruhstaller, Beat,

2017.

The use of charge extraction by linearly increasing voltage in polar organic light-emitting diodes.

Journal of Applied Physics.

121(175501).

Verfügbar unter: https://doi.org/10.1063/1.4982903
Kirsch, Christoph; Altazin, Stéphane; Hiestand, Roman; Beierlein, Tilman; Ferrini, Rolando; Offermans, Ton; Pennick, L.; Ruhstaller, Beat,

2017.

Electrothermal simulation of large-area semiconductor devices.

The International Journal of Multiphysics.

11(2), S. 127-136.

Verfügbar unter: https://doi.org/10.21152/1750-9548.11.2.127
Neukom, Martin; Züfle, Simon; Knapp, Evelyne; Makha, Mohammed; Hany, Roland; Ruhstaller, Beat,

2017.

Why perovskite solar cells with high efficiency show small IV-curve hysteresis.

Solar Energy Materials & Solar Cells.

169, S. 159-166.

Verfügbar unter: https://doi.org/10.1016/j.solmat.2017.05.021
Altazin, Stéphane; Züfle, Simon; Knapp, Evelyne; Kirsch, Christoph; Schmidt, T.D.; Jäger, L.; Noguchi, Y.; Brütting, W.; Ruhstaller, Beat,

2016.

Simulation of OLEDs with a polar electron transport layer.

Organic Electronics.

39, S. 244-249.

Verfügbar unter: https://doi.org/10.1016/j.orgel.2016.10.014
Züfle, Simon; Neukom, Martin T.; Altazin, Stéphane; Zinggeler, Marc; Chrapa, Marek; Offermans, Ton; Ruhstaller, Beat,

2015.

An effective area approach to model lateral degradation in organic solar cells.

Advanced Energy Materials.

5(20).

Verfügbar unter: https://doi.org/10.1002/aenm.201500835
Jenatsch, Sandra; Geiger, Thomas; Heier, Jakob; Kirsch, Christoph; Nüesch, Frank; Paracchino, Adriana; Rentsch, Daniel; Ruhstaller, Beat; Véron, Anna C.; Hany, Roland,

2015.

Influence of chemically p-type doped active organic semiconductor on the film thickness versus performance trend in cyanine/C60 bilayer solar cells.

Science and Technology of Advanced Materials.

16(3).

Verfügbar unter: https://doi.org/10.1088/1468-6996/16/3/035003
Knapp, Evelyne; Ruhstaller, Beat,

2015.

Analysis of negative capacitance and self-heating in organic semiconductor devices.

Journal of Applied Physics.

117(13).

Verfügbar unter: https://doi.org/10.1063/1.4916981
Eck, Michael; Van Pham, Chuyen; Züfle, Simon; Neukom, Martin; Sessler, Martin; Scheunemann, Dorothea; Erdem, Emre; Weber, Stefan; Borchert, Holger; Ruhstaller, Beat; Krüger, Michael,

2014.

Improved efficiency of bulk heterojunction hybrid solar cells by utilizing CdSe quantum dot–graphene nanocomposites.

Physical Chemistry Chemical Physics.

16(24), S. 12251-12260.

Verfügbar unter: https://doi.org/10.1039/c4cp01566e
Jenatsch, Sandra; Hany, Roland; Véron, Anna C.; Neukom, Martin; Züfle, Simon; Borgschulte, Andreas; Ruhstaller, Beat; Nüesch, Frank,

2014.

Influence of molybdenum oxide interface solvent sensitivity on charge trapping in bilayer cyanine solar cells.

The Journal of Physical Chemistry C.

118(30), S. 17036-17045.

Verfügbar unter: https://doi.org/10.1021/jp5005314
Lanz, Thomas; Bonmarin, Mathias; Stuckelberger, Michael; Schlumpf, Christian; Ballif, Christophe; Ruhstaller, Beat,

2013.

Electrothermal finite-element modeling for defect characterization in thin-film silicon solar modules.

IEEE Journal of Selected Topics in Quantum Electronics.

19(5), S. 1-8.

Verfügbar unter: https://doi.org/10.1109/JSTQE.2013.2250259
Lanz, Thomas; Fang, Liang; Baik, Seung Jae; Lim, Kong Su; Ruhstaller, Beat,

2012.

Photocurrent increase in amorphous Si solar cells by increased reflectivity of LiF/Al electrodes.

Solar Energy Materials & Solar Cells.

107, S. 259-262.

Verfügbar unter: https://doi.org/10.1016/j.solmat.2012.06.044
Neukom, M. T.; Züfle, Simon; Ruhstaller, Beat,

2012.

Reliable extraction of organic solar cell parameters by combining steady-state and transient techniques.

Organic Electronics.

13(12), S. 2910-2916.

Verfügbar unter: https://doi.org/10.1016/j.orgel.2012.09.008
Knapp, Evelyne; Ruhstaller, Beat,

2012.

The role of shallow traps in dynamic characterization of organic semiconductor devices.

Journal of Applied Physics.

112(2).

Verfügbar unter: https://doi.org/10.1063/1.4739303
Knapp, Evelyne; Ruhstaller, Beat,

2011.

Numerical analysis of steady-state and transient charge transport in organic semiconductor devices.

Optical and Quantum Electronics.

42(11–13), S. 667-677.

Verfügbar unter: https://doi.org/10.1007/s11082-011-9443-1
Lanz, Thomas; Ruhstaller, Beat; Battaglia, Corsin; Ballif, Christophe,

2011.

Extended light scattering model incorporating coherence for thin-film silicon solar cells.

Journal of Applied Physics.

110(3).

Verfügbar unter: https://doi.org/10.1063/1.3622328
Knapp, Evelyne; Ruhstaller, Beat,

2011.

Numerical impedance analysis for organic semiconductors with exponential distribution of localized states.

Applied Physics Letters.

99(9).

Verfügbar unter: https://doi.org/10.1063/1.3633109
Knapp, Evelyne; Häusermann, Roger; Schwarzenbach, Hansueli; Ruhstaller, Beat,

2010.

Numerical simulation of charge transport in disordered organic semiconductor devices.

Journal of Applied Physics.

108(5), S. 054504-1-054504-8.

Verfügbar unter: https://doi.org/10.1063/1.3475505
Häusermann, R.; Knapp, Evelyne; Moos, M.; Reinke, N. A.; Flatz, T.; Ruhstaller, Beat,

2009.

Coupled opto-electronic simulation of organic bulk-heterojunction solar cells : parameter extraction and sensitivity analysis.

Journal of Applied Physics.

106(10), S. 104507.

Verfügbar unter: https://doi.org/10.1063/1.3259367
Leger, J.M.; Carter, S.A.; Ruhstaller, Beat,

2005.

Recombination profiles in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] light-emitting electrochemical cells.

Journal of Applied Physics.

98(12).

Verfügbar unter: https://doi.org/10.1063/1.2149162
Leger, J. M.; Carter, S. A.; Ruhstaller, Beat; Nothofer, H.-G.; Scherf, Ullrich; Tillmann, H.; Hörhold, H.-H.,

2003.

Thickness-dependent changes in the optical properties of PPV- and PF-based polymer light emitting diodes.

Physical Review B.

68(5).

Verfügbar unter: https://doi.org/10.1103/PhysRevB.68.054209
Beierlein, T. A.; Ruhstaller, Beat; Gundlach, D. J.; Riel, H.; Karg, S.; Rost, C.; Riess, W.,

2003.

Investigation of internal processes in organic light-emitting devices using thin sensing layers.

Synthetic Metals.

138(1–2), S. 213-221.

Verfügbar unter: https://doi.org/10.1016/S0379-6779(02)01269-9
Riel, H.; Karg, S.; Beierlein, T.; Ruhstaller, Beat; Riess, W.,

2003.

Phosphorescent top-emitting organic light-emitting devices with improved light outcoupling.

Applied Physics Letters.

82(3).

Verfügbar unter: https://doi.org/10.1063/1.1537052
Ruhstaller, Beat; Carter, S.; Barth, S.; Riel, H.; Riess, W.; Scott, J.C.,

2001.

Transient and steady-state behavior of space charges in multilayer organic light-emitting diodes.

Journal of Applied Physics.

89(8), S. 4575.

Verfügbar unter: https://doi.org/10.1063/1.1352027
Ruhstaller, Beat; Scott, J.C.; Brock, P.J.; Scherf, Ullrich; Carter, S.A.,

2000.

Bias-tuned reduction of self-absorption in polymer blend electroluminescence.

Chemical Physics Letters.

317(3-5), S. 238-244.

Verfügbar unter: https://doi.org/10.1016/S0009-2614(99)01390-1
Bliznyuk, Valery N.; Ruhstaller, Beat; Brock, P.J.; Scherf, Ullrich; Carter, S.A.,

1999.

Self-assembled nanocomposite polymer light-emitting diodes with improved efficiency and luminance.

Advanced Materials.

11(15), S. 1257-1261.

Verfügbar unter: https://doi.org/10.1002/(SICI)1521-4095(199910)11:15<1257::AID-ADMA1257>3.0.CO;2-D
Salis, G.; Ruhstaller, Beat; Ensslin, K.; Campman, K.; Maranowski, K.; Gossard, A. C.,

1998.

Subband densities in quantum wells under in-plane magnetic fields.

Physical Review B.

58(3), S. 1436-1441.

Verfügbar unter: https://doi.org/10.1103/PhysRevB.58.1436

Buchbeiträge, peer-reviewed

Altazin, Stéphane; Penninck, Lieven; Ruhstaller, Beat,

2018.

Outcoupling technologies : concepts, simulation, and implementation

.

In:

Handbook of organic light-emitting diodes.

Tokyo:

Springer.

S. 1-22.

Verfügbar unter: https://doi.org/10.1007/978-4-431-55761-6_21-1

Konferenzbeiträge, peer-reviewed

Comi, Ennio; Knapp, Evelyne; Battaglia, Mattia; Kirsch, Christoph; Weidmann, Stefano; Jenatsch, Sandra; Hiestand, Roman; Bonmarin, Mathias; Ruhstaller, Beat; et al.,

2022.

Electro-thermal model for lock-in infrared imaging of defects in perovskite solar cells [Paper].

In:

EU PVSEC Proceedings.

8th World Conference on Photovoltaic Energy Conversion, Milan, Italy, 26-30 September 2022.

WIP.

S. 241-246.

Verfügbar unter: https://doi.org/10.4229/WCPEC-82022-2BO.8.3
Regnat, M.; Pernstich, K. P.; Jenatsch, S.; Ruhstaller, B.,

2021.

Detailed explanation of the increased driving voltage in a TADF exciplex host OLED during prolonged operation via a quantitative device model [Poster].

In:

13th Asian Conference on Organic Electronics (A-COE 2021), Online, 2-4 September 2021.
Knapp, Evelyne; Battaglia, Mattia; Stadelmann, Thilo; Jenatsch, Sandra; Ruhstaller, Beat,

2021.

XGBoost trained on synthetic data to extract material parameters of organic semiconductors [Paper].

In:

Proceedings of the 8th SDS.

8th Swiss Conference on Data Science, Lucerne, Switzerland, 9 June 2021.

IEEE.

S. 46-51.

Verfügbar unter: https://doi.org/10.1109/SDS51136.2021.00015
Häusermann, Roger; Jenatsch, Sandra; Leganés Carballo, Jaime; Sharifidehsari, Hamed; Blülle, Balthasar; Züfle, Simon; Liaptsis, Georgios; Ruhstaller, Beat,

2021.

Optimizing charge transport and reducing excitonic loss channels in fluorescent doped TADF OLEDs [Paper].

In:

SID International Symposium : Digest of Technical Papers.

International Conference on Display Technology (ICDT), Wuhan, China, 11-14 October 2020.

Wiley.

S. 341-344.

Verfügbar unter: https://doi.org/10.1002/sdtp.14686
Jenatsch, Sandra; Züfle, Simon; Blülle, Balthasar; Ruhstaller, Beat,

2021.

Combining steady‐state, frequency, and time domain data for a comprehensive analysis of multilayer TADF OLEDs [Paper].

In:

SID International Symposium : Digest of Technical Papers.

International Conference on Display Technology (ICDT), Wuhan, China, 11-14 October 2020.

Wiley.

S. 299-302.

Verfügbar unter: https://doi.org/10.1002/sdtp.14470
Aeberhard, Urs; Zeder, Simon J.; Ruhstaller, Beat,

2021.

Photon recycling in perovskite solar cells assessed by a detailed-balance compatible dipole emission model [Paper].

In:

2021 IEEE 48th Photovoltaic Specialists Conference (PVSC).

48th IEEE Photovoltaic Specialists Conference (PVSC), Virtual Conference, 20-25 June 2021.

IEEE.

S. 0278-0282.

Verfügbar unter: https://doi.org/10.1109/PVSC43889.2021.9518720
Aeberhard, Urs; Zeder, Simon; Ruhstaller, Beat,

2021.

Rigorous simulation of photon recycling effects in perovskite solar cells and LEDs [Paper].

In:

2021 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD).

21st International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), Turin (online), 13-17 September 2021.

IEEE.

S. 63-64.

Verfügbar unter: https://doi.org/10.1109/NUSOD52207.2021.9541505
Aeberhard, Urs; Häusermann, Roger; Schiller, Andreas; Blülle, Balthasar; Ruhstaller, Beat,

2020.

Analysis and optimization of perovskite-silicon tandem solar cells by full opto-electronic simulation [Paper].

In:

2020 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD).

20th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), Turin (online), 14-18 September 2020.

IEEE.

S. 37-38.

Verfügbar unter: https://doi.org/10.1109/NUSOD49422.2020.9217773
Jenatsch, Sandra; Züfle, Simon; Blülle, Balthasar; Ruhstaller, Beat,

2020.

Combining steady‐state, frequency, and time domain data for a comprehensive analysis of multilayer TADF OLEDs [Paper].

In:

SID International Symposium : Digest of Technical Papers.

Display Week 2020, online, 3-7 August 2020.

Wiley.

S. 634-637.

Verfügbar unter: https://doi.org/10.1002/sdtp.13947
Blülle, Balthasar; Altazin, Stéphane; Frouin, Bérengère; Stepanova, Lidia; Jenatsch, Sandra; Ruhstaller, Beat,

2019.

Light conversion and scattering properties of QD films for display applications : angle‐resolved optical spectroscopy and numerical simulation [Paper].

In:

SID International Symposium : Digest of Technical Papers.

International Conference on Display Technology (ICDT), Kunshan, China, 26-29 March 2019.

Wiley.

Verfügbar unter: https://doi.org/10.1002/sdtp.13512
Braga, Daniele; Jenatsch, Sandra; Penninck, Lieven; Hiestand, Roman; Diethelm, Matthias; Altazin, Stéphane; Kirsch, Christoph; Ruhstaller, Beat,

2019.

Modeling electrical and optical cross‐talk between adjacent pixels in organic light‐emitting diode displays [Paper].

In:

SID International Symposium : Digest of Technical Papers.

International Conference on Display Technology (ICDT), Kunshan, China, 26-29 March 2019.

Wiley.

S. 953-956.

Verfügbar unter: https://doi.org/10.1002/sdtp.13083
Aeberhard, Urs; Altazin, Stéphane; Stepanova, Lidia; Stous, Alexandre; Blulle, Balthasar; Kirsch, Christoph; Knapp, Evelyne; Ruhstaller, Beat,

2019.

Numerical optimization of organic and hybrid multijunction solar cells [Paper].

In:

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC).

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, USA, 16-21 June 2019.

IEEE.

S. 0105-0111.

Verfügbar unter: https://doi.org/10.1109/PVSC40753.2019.8980824
Knapp, Evelyne; Ruhstaller, Beat,

2015.

Analysis of self-heating and negative capacitance in organic semiconductors devices [Paper].

In:

International Symposium of the Society for Information display (SID), San Jose, USA, 21 May - 5 June 2015.

Wiley.

S. 778-781.

Verfügbar unter: https://doi.org/10.1002/sdtp.10224
Altazin, Stéphane; Reynaud, Clément; Mayer, Ursula Maria; Lanz, Thomas; Lapagna, Kevin; Knaack, Reto; Penninck, Lieven; Kirsch, Christoph; Pernstich, Kurt P.; Harkema, Stephan; Hermes, Dorothee; Ruhstaller, Beat,

2015.

Simulations, measurements and optimization of OLEDs with scattering layer [Paper].

In:

SID international symposium : digest of technical papers.

International Symposium of the Society for Information display (SID), San Jose, USA, 21 May - 5 June 2015.

Wiley.

S. 564-567.

Verfügbar unter: https://doi.org/10.1002/sdtp.10478
Lanz, Thomas; Bonmarin, Mathias; Ruhstaller, Beat; Offermans, Ton,

2014.

Failure modes in all-plastic encapsulated flexible organic solar modules : experimental and computational analysis [Poster].

In:

Graetzel, Michael; Nazeeruddin, Mohammad, Hrsg.,

Proceedings of the 6th International Conference on Hybrid and Organic Photovoltaics (HOPV14).

6th International Conference on Hybrid and Organic Photovoltaics (HOPV14), Ecublens, 11-14 May 2014.

nanoGe.
Altazin, Stéphane; Lapagna, Kevin; Lanz, Thomas; Kirsch, Christoph; Knaack, Reto; Ruhstaller, Beat,

2014.

Design tool for light scattering enhancement in OLEDs [Paper].

In:

SID symposium : digest of technical papers.

Organic Light-Emitting Diodes in Society of Information Display, San Diego, USA, 1-6 June 2014.

Wiley.

S. 576-579.

Verfügbar unter: https://doi.org/10.1002/j.2168-0159.2014.tb00151.x
Altazin, Stéphane; Perucco, Benjamin; Pagan, Nicolò; Lapagna, Kevin; Lanz, Thomas; Knaack, Reto; Knapp, Evelyne; Ruhstaller, Beat,

2013.

Multi-scale modeling of organic light-emitting devices [Paper].

In:

SID International Symposium: Digest of Technical Papers.

International Symposium of the Society for Information display (SID), San Jose, USA, 19-24 May 2013.

Wiley.

S. 1486-1489.

Verfügbar unter: https://doi.org/10.1002/j.2168-0159.2013.tb06529.x

Weitere Publikationen

Aeberhard, Urs; Hiestand, Roman; Ruhstaller, Beat,

2020.

Simulation of beam shaping by micro‐textures for curved displays [Paper].

In:

SID International Symposium : Digest of Technical Papers.

Display Week 2020, online, 3-7 August 2020.

Wiley.

S. 957-959.

Verfügbar unter: https://doi.org/10.1002/sdtp.14030
Jenatsch, Sandra; Züfle, Simon; Will, Paul Anton; Bülle, Balthasar; Neukom, Martin; Lenk, Simone; Reineke, Sebastian; Braga, Daniele; Domanski, Konrad; Ruhstaller, Beat,

2019.

Quantitative analysis of charge transport in single‐carrier devices and OLEDs combining DC and AC data [Paper].

In:

SID International Symposium : Digest of Technical Papers.

International Conference on Display Technology (ICDT), Kunshan, China, 26-29 March 2019.

S. 1895-1898.

Verfügbar unter: https://doi.org/10.1002/sdtp.13333
Penninck, Lieven; Diethelm, Matthias; Altazin, Stéphane; Hiestand, Roman; Kirsch, Christoph; Ruhstaller, Beat,

2018.

Modelling crosstalk through common semiconductor layers in AMOLED displays.

Journal of the Society for Information Display.

26(9), S. 546-554.

Verfügbar unter: https://doi.org/10.1002/jsid.671
Jenatsch, Sandra; Regnat, Markus; Hany, Roland; Diethelm, Matthias; Nüesch, Frank; Ruhstaller, Beat,

2018.

Time-dependent p–i–n structure and emission zone in sandwich-type light-emitting electrochemical cells.

ACS Photonics.

5(4), S. 1591-1598.

Verfügbar unter: https://doi.org/10.1021/acsphotonics.8b00047
Altazin, Stéphane; Züfle, Simon; Knapp, Evelyne; Kirsch, Christoph; Schmidt, Tobias D.; Jäger, Lars; Brütting, Wolfgang; Ruhstaller, Beat,

2016.

Combining simulators and experiments to study the impact of polar OLED materials [Paper].

In:

SID Symposium Digest of Technical Papers.

SID International Symposium, San Francisco, USA, 22-27 May 2016.

Wiley.

S. 1750-1753.

Verfügbar unter: https://doi.org/10.1002/sdtp.11059
Losio, Paolo Antonio; Feurer, Thomas; Buecheler, Stephan; Ruhstaller, Beat,

2016.

Evolutionary optimization of TCO/mesh electrical contacts in CIGS solar cells [Paper].

In:

Proceedings of the EU PVSEC 2016 (Munich).

32nd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2016), Munich, Germany, 20-24 June 2016.

WIP Wirtschaft und Infrastruktur.

S. 1237-1240.

Verfügbar unter: https://doi.org/10.21256/zhaw-1987
Altazin, Stéphane; Züfle, Simon; Knapp, Evelyne; Kirsch, Christoph; Schmidt, Tobias D.; Jäger, Lars; Brütting, Wolfgang; Ruhstaller, Beat,

2016.

On the role of polar molecules and the barrier for charge injection in OLEDs [Paper].

In:

So, Franky; Adachi, Chihaya; Kim, Jang-Joo, Hrsg.,

Proceedings of SPIE, Organic Light Emitting Materials and Devices XX.

SPIE Organic Photonics + Electronics, San Diego, USA, 28 August - 1 September 2016.

Verfügbar unter: https://doi.org/10.1117/12.2238620
Knapp, Evelyne; Ruhstaller, Beat,

2015.

Analysis of self-heating and trapping in organic semiconductor devices [Paper].

In:

So, Franky; Adachi, Chihaya; Kim, Jang-Joo, Hrsg.,

Organic Light Emitting Materials and Devices XIX.

Organic Light Emitting Materials and Devices XIX, San Diego, USA, 9-11 August 2015.

SPIE.

Verfügbar unter: https://doi.org/10.1117/12.2185712
Altazin, Stéphane; Lanz, Thomas; Lapagna, Kevin; Ruhstaller, Beat,

2013.

Impact of light scattering for efficiency enhancement in organic solar cells [Paper].

In:

28th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Paris, France, 30 September - 4 October 2013.

WIP.

Verfügbar unter: https://doi.org/10.21256/zhaw-1994
Ruhstaller, Beat; Flatz, T.; Sartoris, Guido; Kiy, M.; Beierlein, Tilman; Winnewisser, C.; Pretot, R.; Chebotareva, N.; v.d. Schaaf, P.,

2006.

Optoelectronic OLED modeling for characterization and optimization [Paper].

In:

Organic Electronics Conference and Exhibition, Frankfurt, Germany, 25-27 September 2006.
Ruhstaller, Beat; Beierlein, Tilman A.; Gmür, Roman; Karg, Siegfried; Riel, Heike; Sartoris, Guido; Schwarzenbach, Hansueli; Riess, Walter,

2004.

Parameter extraction and validation of an electronic and optical model for organic light-emitting devices [Paper].

In:

Wachutka, Gerhard; Schrag, Gabriele, Hrsg.,

Simulation of Semiconductor Processes and Devices 2004.

10th International Conference on Simulation of Semiconductor Processes and Devices (SISPAD), Munich, 2-4 September 2004.

Springer.

S. 157-161.

Verfügbar unter: https://doi.org/10.21256/zhaw-1995
Ruhstaller, Beat; Schwarzenbach, H. U.,

2004.

Virtuelle Experimente für die Ingenieurausbildung.

ZHWInfo.

19, S. 45.
Ruhstaller, Beat; Beierlein, T. A.; Riel, H.; Karg, S.; Scott, J. C.; Riess, W.,

2003.

Simulating electronic and optical processes in multilayer organic light-emitting devices.

IEEE Journal of Selected Topics in Quantum Electronics.

9(3), S. 723-731.

Verfügbar unter: https://doi.org/10.1109/JSTQE.2003.818852
Hocker, Thomas; Sartoris, Guido; Ruhstaller, Beat; Haller, Thomas; Schwarzenbach, Hansueli,

2003.

Mikro- und Nanotechnologie am Center for Computational Physics.

ZHWInfo.

17.
Beierlein, T. A.; Riel, H.; Ruhstaller, Beat; Hofmann, H.; Crone, B. K.; Karg, S.; Riess, W.,

2002.

Tuning of electrical and optical properties of organic LEDs using combinatorial device fabrication.

Journal of the Society for Information Display.

10(4), S. 311-315.

Verfügbar unter: https://doi.org/10.1889/1.1827883

Mündliche Konferenzbeiträge und Abstracts

Comi, Ennio; Jenatsch, Sandra; Blülle, Balthasar; Battaglia, Mattia; Torre Cachafeiro, Miguel Angel; Kirsch, Christoph; Hiestand, Roman; Aeberhard, Urs; Ruhstaller, Beat; Knapp, Evelyne,

2023.

Investigation of time and location dependent variations in electroluminescence images of perovskite solar cells.

In:

Proceedings of the 40th European Photovoltaic Solar Energy Conference and Exhibition.

40th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Lisbon, Portugal, 18-22 September 2023.

WIP Renewable Energies.

S. 020077-001-020077-022.
Regnat, M.; Jenatsch, S.; Züfle, S.; Pernstich, K. P.; Ruhstaller, B.,

2021.

Advanced characterization and device simulation towards better understanding of OLED degradation mechanisms.

In:

21st International Meeting on Information Display (IMID 2021), Seoul, Korea, 25-27 August 2021.
Lanz, Thomas; Boccard, Mathieu; Despeisse, Matthieu; Battaglia, Corsin; Haug, Franz-Josef; Ballif, Christophe; Ruhstaller, Beat,

2013.

Light harvesting analysis of novel thin-film electrode architectures in microcrystalline silicon solar cells with hybrid Fourier and geometrical optics simulator.

In:

European Materials Research Society (E-MRS) 2013 Spring Meeting, Strasbourg, France, 27-31 May 2013.

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