Dr. Ulrich Zehnder Profile

Dr. Ulrich Zehnder

at ams-OSRAM International GmbH

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 12 February 2010 Paper

A study on the reverse-bias and ESD instabilities of InGaN-based green LEDs

M. Meneghini, A. Tazzoli, N. Trivellin, E. Ranzato, M. Dal Lago, B. Hahn, U. Zehnder, R. Butendeich, G. Meneghesso, E. Zanoni

Proceedings Volume 7617, 76170M (2010) https://doi.org/10.1117/12.841826

KEYWORDS: Light emitting diodes, Luminescence, Reliability, Statistical analysis, Microscopy, Green light emitting diodes, Gallium nitride, Electro optics, Photomicroscopy, Indium gallium nitride

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Proceedings Article | 26 September 2007 Paper

GaInN LEDs: straight way for solid state lighting

U. Zehnder, B. Hahn, J. Baur, M. Peter, S. Bader, H. Lugauer, A. Weimar

Proceedings Volume 6797, 67970E (2007) https://doi.org/10.1117/12.759472

KEYWORDS: Light emitting diodes, Solid state lighting, Lamps, Indium gallium nitride, External quantum efficiency, Headlamps, Mirrors, LCDs, Light sources and illumination, Internal quantum efficiency

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Proceedings Article | 20 October 2004 Paper

Study of short-term instabilities of InGaN/GaN light-emitting diodes by means of capacitance-voltage measurements and deep-level transient spectroscopy

Gaudenzio Meneghesso, Matteo Meneghini, Simone Levada, Enrico Zanoni, Anna Cavallini, Antonio Castaldini, Volker Harle, Thomas Zahner, Ulrich Zehnder

Proceedings Volume 5530, (2004) https://doi.org/10.1117/12.566159

KEYWORDS: Light emitting diodes, Capacitance, Doping, Electroluminescence, Temperature metrology, Spectroscopy, Quantum wells, Spectroscopes, Gallium nitride, Optical testing

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Proceedings Article | 7 July 1998 Paper

Beryllium-containing II-VI semiconductor devices

Andreas Waag, Frank Fischer, H.-J. Lugauer, Karl Schuell, U. Zehnder, T. Gerhard, M. Keim, G. Reuscher, Gottfried Landwehr

Proceedings Volume 3283, (1998) https://doi.org/10.1117/12.316665

KEYWORDS: Beryllium, Gallium arsenide, Semiconductor lasers, Etching, Interfaces, Silicon, Quantum wells, Selenium, Information operations, Thin films

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