Dr. Roland Kroeger Profile

Dr. Roland Kroeger

at Univ Bremen

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Author

Publications (3)

Proceedings Article | 15 February 2008 Paper

Defect and emission distributions in bulk GaN grown in polar and nonpolar directions: a comparative analysis

T. Paskova, A. Hanser, E. Preble, K. Evans, R. Kröger, F. Tuomisto, R. Kersting, R. Alcorn, S. Ashley, C. Pagel, E. Valcheva, P. Paskov, B. Monemar

Proceedings Volume 6894, 68940D (2008) https://doi.org/10.1117/12.767628

KEYWORDS: Gallium nitride, Interfaces, Transmission electron microscopy, Sapphire, Ions, Metalorganic chemical vapor deposition, Gallium, Silicon, Visualization, Reflection

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Proceedings Article | 15 February 2008 Paper

The role of anisotropy for defect properties in a-plane GaN

R. Kröger, T. Paskova

Proceedings Volume 6894, 689403 (2008) https://doi.org/10.1117/12.763596

KEYWORDS: Gallium nitride, Aluminum nitride, Indium nitride, Anisotropy, Transmission electron microscopy, Sapphire, Crystals, Interfaces, Silicon carbide, Multilayers

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Proceedings Article | 3 March 2006 Paper

Microscopic emission properties of nonpolar α-plane GaN grown by HVPE

T. Paskova, R. Kroeger, P. Paskov, S. Figge, D. Hommel, B. Monemar, B. Haskell, P. Fini, J. Speck, S. Nakamura

Proceedings Volume 6121, 612106 (2006) https://doi.org/10.1117/12.645672

KEYWORDS: Gallium nitride, Transmission electron microscopy, Visualization, Metalorganic chemical vapor deposition, Sapphire, Point spread functions, Imaging spectroscopy, Scanning electron microscopy, Crystals, Edge emitting semiconductor lasers

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