Search Results - "Neuschl, Benjamin"
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GaInN Quantum Wells as Optochemical Transducers for Chemical Sensors and Biosensors
Published in IEEE journal of selected topics in quantum electronics (01-03-2017)“…In this paper, investigations on gallium indium nitride (GaInN) quantum well structures as optochemical transducers in (bio)chemical sensing are presented. In…”
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Growth of AlN bulk crystals on SiC seeds: Chemical analysis and crystal properties
Published in Journal of crystal growth (15-01-2012)“…AlN single crystals are grown by physical vapor transport (PVT) in sintered TaC crucibles in the presence of SiC, i.e. by seeding on 6H–SiC or by adding SiC to…”
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Optical identification of silicon as a shallow donor in MOVPE grown homoepitaxial AlN
Published in physica status solidi (b) (01-03-2012)“…Aluminum nitride (AlN) layers doped intentionally with different concentrations of silicon atoms acting as shallow donors were grown by MOVPE on bulk c‐plane…”
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Negative spin-exchange splitting in the exciton fine structure of AlN
Published in Applied physics letters (04-02-2013)“…The exact energy position of the free exciton transition and thus the lowest band gap in bulk wurtzite AlN are still under discussion. By combined high…”
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Sharp bound and free exciton lines from homoepitaxial AlN
Published in Physica status solidi. A, Applications and materials science (01-07-2011)“…MOCVD AlN layers grown in c‐direction on PVT bulk AlN substrates are investigated by high‐resolution photoluminescence in the energy region of the band gap…”
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High-excitation and high-resolution photoluminescence spectra of bulk AlN
Published in Physical review. B, Condensed matter and materials physics (16-08-2010)Get full text
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Studies on Defect Reduction in AlGaN Heterostructures by Integrating an In-situ SiN Interlayer
Published in Japanese Journal of Applied Physics (01-08-2013)“…We have decreased the dislocation density in Al x Ga 1-x N epitaxial layers grown on sapphire wafers by introducing an in-situ deposited SiN nano-mask layer…”
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Optical gas sensing by micro-photoluminescence on multiple and single ZnO nanowires
Published in Physica status solidi. A, Applications and materials science (01-08-2015)“…ZnO nanowires with average diameters of 50–200 nm were grown by chemical vapor deposition. Their gas sensing properties were analyzed by…”
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Enforced c -axis growth of ZnO epitaxial chemical vapor deposition films on a -plane sapphire
Published in Applied physics letters (30-04-2012)“…To enforce perfect c -axis orientation of ZnO epitaxial films grown on a -plane sapphire, we first grew perfectly perpendicularly aligned (i.e., c axis…”
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Temperature dependent dielectric function and reflectivity spectra of nonpolar wurtzite AlN
Published in Thin solid films (28-11-2014)“…Exciton resonances are observed in the dielectric functions of wurtzite AlN by spectroscopic ellipsometry for the electric field vector parallel and…”
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Synchrotron-based photoluminescence excitation spectroscopy applied to investigate the valence band splittings in AlN and Al0.94Ga0.06N
Published in Applied physics letters (11-07-2011)“…We demonstrate that synchrotron-based photoluminescence excitation (PLE) spectroscopy is a versatile tool for determining valence band splittings of AlN and…”
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13
Optical properties of defects in nitride semiconductors
Published in Journal of materials research (28-10-2015)“…Group III nitrides are promising materials for light emitting diodes (LEDs). The occurrence of structural defects strongly affects the efficiency of these…”
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Synchrotron-based photoluminescence excitation spectroscopy applied to investigate the valence band splittings in AlN and Al 0.94 Ga 0.06 N
Published in Applied physics letters (12-07-2011)“…We demonstrate that synchrotron-based photoluminescence excitation (PLE) spectroscopy is a versatile tool for determining valence band splittings of AlN and…”
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Catalytic growth of hexagonally aligned ZnO nanorods
Published in Physica Status Solidi (b) (01-08-2011)“…Aligned ZnO nanorods were prepared using colloid‐based self‐assembling techniques to structure the gold catalyst. Two different processes were used and are…”
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Growth of A1N bulk crystals on SiC seeds: Chemical analysis and crystal properties
Published in Journal of crystal growth (2012)Get full text
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Basal plane stacking faults in semipolar AlGaN: Hints to Al redistribution
Published in Physica Status Solidi. B: Basic Solid State Physics (01-11-2014)“…We investigate the optical and structural properties of an AlGaN layer with low Al content grown on a {11‾01} semipolar GaN facet. The correlation of scanning…”
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Anisotropic absorption and emission of bulk ( 1 1 ¯ 00 ) AlN
Published in Physical review. B, Condensed matter and materials physics (24-06-2013)“…The intrinsic anisotropic optical properties of wurtzite AlN are investigated in absorption and emission. Full access to the anisotropy of the optical response…”
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Sharp bound and free exciton lines from homoepitaxial AIN
Published in Physica status solidi. A, Applications and materials science (2011)Get full text
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Temperature dependent dielectric function and reflectivity spectra of nonpolar wurtzite AIN
Published in Thin solid films (2014)Get full text
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