F
Frank Bertram
Researcher at Otto-von-Guericke University Magdeburg
Publications - 184
Citations - 5730
Frank Bertram is an academic researcher from Otto-von-Guericke University Magdeburg. The author has contributed to research in topics: Cathodoluminescence & Metalorganic vapour phase epitaxy. The author has an hindex of 36, co-authored 180 publications receiving 5465 citations. Previous affiliations of Frank Bertram include Arizona State University.
Papers
More filters
Journal ArticleDOI
Theoretical study of time-resolved luminescence in semiconductors. IV. Lateral inhomogeneities
TL;DR: In this paper, the impact of lateral inhomogeneities on the time-resolved luminescence decay (TRL) after a pulsed excitation by means of simulation with Synopsys® TCAD and analytical approximation is investigated.
Journal ArticleDOI
Direct evidence for selective impurity incorporation at the crystal domain boundaries in epitaxial ZnO layers
TL;DR: In this paper, a direct correlation of structural properties with the spatial distribution of bound exciton luminescence in ZnO epitaxial layers has been achieved on a microscopic scale using highly spatially and spectrally resolved cathodoluminescence.
Journal ArticleDOI
Microscopic distribution of extended defects and blockage of threading dislocations by stacking faults in semipolar (11¯01) GaN revealed from spatially resolved luminescence
Serdal Okur,Sebastian Metzner,Natalia Izyumskaya,Fan Zhang,Vitaliy Avrutin,C. Karbaum,Frank Bertram,Juergen Christen,Hadis Morkoç,Ümit Özgür +9 more
TL;DR: The spatial distribution of extended defects in semipolar (11¯01)-oriented GaN layers grown on patterned Si substrates with striped grooves of varying width was investigated by optical means only using near-field scanning optical microscopy (NSOM) and cathodoluminescence (CL) as discussed by the authors.
Journal ArticleDOI
Color‐Tunable 3D InGaN/GaN Multi‐Quantum‐Well Light‐Emitting‐Diode Based on Microfacet Emission and Programmable Driving Power Supply
Lai Wang,Xun Wang,Frank Bertram,Bowen Sheng,Zhibiao Hao,Yi Luo,Changzheng Sun,Bing Xiong,Yanjun Han,Jian Wang,Hongtao Li,Gordon Schmidt,Peter Veit,Jürgen Christen,Xinqiang Wang +14 more
Journal ArticleDOI
Time-resolved microphotoluminescence of epitaxial laterally overgrown GaN
J. Holst,A. Kaschner,Axel Hoffmann,P. Fischer,Frank Bertram,T. Riemann,Jürgen Christen,Kazumasa Hiramatsu,T. Shibata,Nobuhiko Sawaki +9 more
TL;DR: In this article, spatially resolved microphotoluminescence (micro-PL) and time-dependent spectroscopy were used to characterize Epitaxial laterally overgrown GaN (ELOG) structures.