Prof. Dr. Beat Ruhstaller

Prof. Dr. Beat Ruhstaller

Prof. Dr. Beat Ruhstaller
ZHAW School of Engineering
Wildbachstrasse 21
8400 Winterthur

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

Persönliches Profil

Leitungsfunktion

  • Stv. Institutsleitung Institute of Computational Physics
  • Schwerpunktleitung Organische Elektronik und Photovoltaik

Tätigkeit an der ZHAW als

- Leitung des Forschungsschwerpunkts Organische Elektronik und Photovoltaik 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"

http://www.icp.zhaw.ch

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)

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

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 Stv. Institutsleiter ICP, Geschäftsleiter der Fluxim AG

Mitglied in Netzwerken

Projekte

Mitarbeit an folgenden Projekten

Publikationen

Beiträge, peer-reviewed

; ; ; ; ; ; ().

Electrothermal Simulation of Large-Area Semiconductor Devices

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The International Journal of Multiphysics, 11, 2. 127-136. Peer reviewed.

; ; ; ; ; ; ; ; ().

Simulation of OLEDs with a polar electron transport layer

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Organic Electronics, 39 244-249. Peer reviewed.

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

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Advanced Energy Materials, 5 1500835. Peer reviewed.

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

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Journal of Applied Physics, 117, 135501. Peer reviewed.

; ; ; ; ; ; ; ; ; ().

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

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Science and Technology of Advanced Materials, 16, 3. 035003. Peer reviewed.

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

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Physical Chemistry Chemical Physics, 16 12251. Peer reviewed.

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Influence of Molybdenum Oxide Interface Solvent Sensitivity on Charge Trapping in Bilayer Cyanine Solar Cells

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Journal of Physical Chemistry C, 118 17036. Peer reviewed.

; ; ; ; ; ().

Electro-Thermal Finite Element Modeling for Defect Characterization in Thin-Film Silicon Solar Modules

.

IEEE Journal Of Selected Topics In Quantum Electronics, 19, 5. 4000308. Peer reviewed.

; ; ; ; ().

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

.

Solar Energy Materials and Solar Cells, 107 259. Peer reviewed.

; ; ().

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

.

Organic Electronics, 13 2910. Peer reviewed.

; ().

The role of shallow traps in dynamic charge transport in the characterization of organic semiconductor devices

.

Journal of Applied Physics, 112, 024519. Peer reviewed.

; ; ; ().

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

.

Journal of Applied Physics, 110, 3. 033111. Peer reviewed.

; ().

Numerical Analysis of Steady-State and Transient Charge Transport in Organic Semiconductor Devices

.

Optical and Quantum Electronics, 42, 667. Peer reviewed.

; ; ; ().

Numerical simulation of charge transport in disordered organic semiconductor devices

.

Journal of Applied Physics, 108, 054504-0545012, (2010) , 109 054504-0545012. Peer reviewed.

Beiträge, nicht peer-reviewed

; ; ; ; ; ; ; ().

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

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Journal of Applied Physics, 121, 17. 175501.

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

.

Journal of Applied Physics, 121 175501.

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Combining Simulators and Experiments to Study the Impact of Polar OLED Materials

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SID Symposium Digest of Technical Papers, 47, 1. 1750-1753.

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Evolutionary Optimization of TCO/Mesh Electrical Contacts in CIGS Solar Cells

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Proceedings of the 32nd EUPVSEC 1237-1240.

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On the role of polar molecules and the barrier for charge injection in OLEDs

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Proceedings of SPIE, 9941 99410O.

; ().

Analysis of Self-Heating and Negative Capacitance in Organic Semiconductors Devices

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SID Symposium Digest of Technical Papers, 46, 1.

; ().

Analysis of self-heating and trapping in organic semiconductor devices

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Proc. SPIE, 9566, Organic Light Emitting Materials and Devices XIX.

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Simulations, Measurements, and Optimization of OLEDs with Scattering Layer

.

SID Symposium Digest of Technical Papers, 46, 1. 564-567.

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Design Tool for Light Scattering Enhancement in OLEDs

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SID Symposium Digest of Technical Papers , 45, 1. 576-579.

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

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In: Spring Meeting of the European Materials Research Society (EMRS). Strasbourg, France: EMRS.

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Multi-Scale Modeling of Organic Light-Emitting Devices

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In: SID Symposium Digest of Technical Papers. (1486 - 1489). San Diego: SID.

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Optoelectronic OLED modeling for characterization and optimization

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In: Proceedings of the Organic Electronics Conference & Exhibition 2006. Frankfurt: -.

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

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Journal of Applied Physics, 12/2005. 124907-1-7.

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Parameter Extraction and Validation of an Electronic and Optical Model for Organic Light-emitting Devices

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In: G. Wachutka (Hg.). Proc. of the Conference on Simulation of Semiconductor Processes and Devices. SISPAD. -: Springer.

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Virtuelle Experimente für die Ingenieurausbildung

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zhwinfo, 18 (19/2004). 45.

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

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Synthetic metals, 138 (2003). 213.

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Mikro- und Nanotechnologie am Center for Computational Physics

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zhwinfo, 17 (18/2003).

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

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Applied physics letters, 82 (3/2003). 466.

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

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IEEE Journal of Selected Topics in Quantum Electronics, 9 (3/2003). 723.

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

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Physical review. B, 68 (5/2003). 54209.

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

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Journal of the Society for Information Display, 4/2002. 311.

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

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Journal of Applied Physics, 8/2001. 4575-86.

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

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Chemical Physics Letters, 3/2000. 238-44.

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

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Advanced Materials, 15/1999. 1257-61.

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Subband densities in quantum wells under in-plane magnetic fields

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Physical Review B, 3/1998. 1436-41.

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Impact of Light Scattering for Efficiency Enhancement in Organic Solar Cells

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In: 28th European Photovoltaic Solar Energy Conference and Exhibition. Paris, France: EUPVSEC.