Mr. Karl-Anders Weiss Profile

Karl-Anders Weiss

Head of Team Analytics at Fraunhofer ISE

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Publications (14)

Proceedings Article | 16 October 2012 Paper

Indoor vs. outdoor aging: polymer degradation in PV modules investigated by Raman spectroscopy

C. Peike, T. Kaltenbach, K. Weiß, M. Koehl

Proceedings Volume 8472, 84720V (2012) https://doi.org/10.1117/12.929828

KEYWORDS: Luminescence, Raman spectroscopy, Ultraviolet radiation, Solar cells, Climatology, Polymers, Temperature metrology, Humidity, Crystals, Silicon

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Proceedings Article | 16 October 2012 Paper

Permeation impact on metallization degradation

C. Peike, S. Hoffmann, P. Hülsmann, K.-A. Weiß, M. Koehl, P. Bentz

Proceedings Volume 8472, 84720U (2012) https://doi.org/10.1117/12.929819

KEYWORDS: Corrosion, Silver, Raman spectroscopy, Electroluminescence, Solar cells, Polymers, Luminescence, Lead, Scanning electron microscopy, Oxygen

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Proceedings Article | 4 October 2011 Paper

Inter-laboratory comparison of UV-light sources for accelerated durability testing of PV modules

Daniel Philipp, Karl-Anders Weiss, Michael Koehl

Proceedings Volume 8112, 81120G (2011) https://doi.org/10.1117/12.893525

KEYWORDS: Ultraviolet radiation, Solar cells, Ultraviolet sources, Polymers, Sensors, Calibration, Radiometry, Solar radiation, Manufacturing, Lamps

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Proceedings Article | 13 September 2011 Paper

Impact of heavy soiling on the power output of PV modules

Christian Schill, Stefan Brachmann, Markus Heck, Karl-Anders Weiss, Michael Koehl

Proceedings Volume 8112, 811207 (2011) https://doi.org/10.1117/12.893721

KEYWORDS: Solar cells, Climatology, Sensors, Reliability, Temperature metrology, Snow cover, 3D imaging standards, Photovoltaics, Solar energy systems, Corrosion

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Proceedings Article | 13 September 2011 Paper

Stabilization processes and air mass influences for outdoor exposure of thin film modules

Jochen Wirth, Katrin Scharmach, Karl-Anders Weiss, Michael Köhl

Proceedings Volume 8110, 81100K (2011) https://doi.org/10.1117/12.893698

KEYWORDS: Thin films, Amorphous silicon, Temperature metrology, Climatology, Aluminum, Solar cells, Polymers, Data corrections, Current controlled current source, Silicon

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Proceedings Article | 1 September 2010 Paper

Stabilization of electrical parameters of thin-film modules under controlled conditions

U. Aksünger, D. Philipp, M. Köhl, K.-A. Weiss

Proceedings Volume 7771, 777108 (2010) https://doi.org/10.1117/12.860675

KEYWORDS: Amorphous silicon, Thin films, Temperature metrology, Heat treatments, Climatology, Copper indium gallium selenide, Data corrections, Hydrogen, Sensors, Environmental sensing

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Proceedings Article | 21 August 2010 Paper

PV module degradation caused by thermomechanical stress: real impacts of outdoor weathering versus accelerated testing in the laboratory

W. Herrmann, N. Bogdanski, F. Reil, M. Köhl, K.-A. Weiss, M. Assmus, M. Heck

Proceedings Volume 7773, 77730I (2010) https://doi.org/10.1117/12.859809

KEYWORDS: Solar cells, Temperature metrology, Electroluminescence, Climatology, Resistance, Connectors, Protactinium, Crystals, Manufacturing, Reliability

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Proceedings Article | 19 August 2010 Paper

Measuring and simulation of water vapour permeation into PV modules under different climatic conditions

P. Hülsmann, M. Jäger, K.-A. Weiss, M. Köhl

Proceedings Volume 7773, 777307 (2010) https://doi.org/10.1117/12.860598

KEYWORDS: Diffusion, Climatology, Temperature metrology, Polymers, Solar cells, Computer simulations, Humidity, Spectroscopy, Absorption, Positron emission tomography

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Proceedings Article | 19 August 2010 Paper

Lateral distribution of the degradation of encapsulants after different damp-heat exposure times investigated by Raman spectroscopy

C. Peike, T. Kaltenbach, M. Köhl, K.-A. Weiß

Proceedings Volume 7773, 77730E (2010) https://doi.org/10.1117/12.860590

KEYWORDS: Raman spectroscopy, Solar cells, Luminescence, Nondestructive evaluation, Manufacturing, Ultraviolet radiation, Polymers, Crystals, Diffusion, Humidity

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Proceedings Article | 19 August 2010 Paper

Results of 3 years' PV module weathering in various open-air climates

N. Bogdanski, W. Herrmann, F. Reil, M. Köhl, K.-A. Weiss, M. Heck

Proceedings Volume 7773, 77730L (2010) https://doi.org/10.1117/12.859807

KEYWORDS: Climatology, Temperature metrology, Solar cells, Manufacturing, Humidity, Climate change, Electroluminescence, Crystals, Inspection, Aluminium phosphide

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Proceedings Article | 21 August 2009 Paper

Light-soaking and power measurements of thin film modules

Karl-Anders Weiss, Simon Kratochwill, Jochen Wirth, Michael Koehl

Proceedings Volume 7409, 74090O (2009) https://doi.org/10.1117/12.824857

KEYWORDS: Amorphous silicon, Thin films, Temperature metrology, Climatology, Silicon, Crystals, Thin film solar cells, Photovoltaics, Optical filters, Linear filtering

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Proceedings Article | 20 August 2009 Paper

Measurement and simulation of dynamic mechanical loads on PV-modules

Karl-Anders Weiss, Marcus Assmus, Steffen Jack, Michael Koehl

Proceedings Volume 7412, 741203 (2009) https://doi.org/10.1117/12.824859

KEYWORDS: Protactinium, Glasses, Acoustics, Distance measurement, Sensors, Computer simulations, Manufacturing, Solar cells, Polymers, Finite element methods

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Proceedings Article | 10 September 2008 Paper

Accelerated degradation studies of encapsulation polymers

Karl-Anders Weiss, Jan Philip Huelsmann, Thomas Kaltenbach, Daniel Philipp, Tanja Schuhmacher, Jochen Wirth, Michael Koehl

Proceedings Volume 7048, 70480E (2008) https://doi.org/10.1117/12.793609

KEYWORDS: Polymers, Raman spectroscopy, Diffusion, Humidity, Spectroscopy, Climatology, Luminescence, Microscopy, Ultraviolet radiation, Attenuated total reflectance

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Proceedings Article | 10 September 2008 Paper

Indoor and outdoor weathering of PV-modules

Michael Koehl, Markus Heck, Daniel Philipp, Karl-Anders Weiss, Claudio Ferrara, Werner Herrmann

Proceedings Volume 7048, 704806 (2008) https://doi.org/10.1117/12.794569

KEYWORDS: Temperature metrology, Climatology, Humidity, Ultraviolet radiation, Wind measurement, Lamps, Manufacturing, Solar energy systems, Climate change, Aluminium phosphide

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Showing 5 of 14 publications

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