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Showing 1 to 4 of 4 (0.068 seconds)Spelling suggestions: "subject:"fim composition""
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Lattice parameters and Raman-active phonon modes of (InxGa1–x)2O3 for x < 0.4Kranert, Christian, Lenzner, Jörg, Jenderka, Marcus, Lorenz, Michael, von Wenckstern, Holger, Schmidt-Grund, Rüdiger, Grundmann, Marius 14 August 2018 (has links)
We present X-ray diffraction and Raman spectroscopy investigations of (InxGa1–x)2O3 thin films
and bulk-like ceramics in dependence of their composition. The thin films grown by pulsed laser
deposition have a continuous lateral composition spread allowing the determination of phonon
mode properties and lattice parameters with high sensitivity to the composition from a single 2-in.
wafer. In the regime of low indium concentration, the phonon energies depend linearly on the composition
and show a good agreement between both sample types. We determined the slopes of these
dependencies for eight different Raman modes. While the lattice parameters of the ceramics follow
Vegard’s rule, deviations are observed for the thin films. Further, we found indications of the highpressure
phase InGaO3 II in the thin films above a critical indium concentration, its value depending
on the type of substrate.
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| 2 |
Lattice parameters and Raman-active phonon modes of β-(AlxGa1−x)2O3Kranert, Christian, Jenderka, Marcus, Lenzner, Jörg, Lorenz, Michael, von Wenckstern, Holger, Schmidt-Grund, Rüdiger, Grundmann, Marius 14 August 2018 (has links)
We present X-ray diffraction and Raman spectroscopy investigations of a (100)-oriented
(AlxGa1–x)2O3 thin film on MgO (100) and bulk-like ceramics in dependence on their composition.
The thin film grown by pulsed laser deposition has a continuous lateral composition spread allowing
to determine precisely the dependence of the phonon mode properties and lattice parameters on
the chemical composition. For x<0.4, we observe the single-phase b-modification. Its lattice parameters
and phonon energies depend linearly on the composition. We determined the slopes of
these dependencies for the individual lattice parameters and for nine Raman lines, respectively.
While the lattice parameters of the ceramics follow Vegard’s rule, deviations are observed for the
thin film. This deviation has only a small effect on the phonon energies, which show a reasonably
good agreement between thin film and ceramics.
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| 3 |
Visible-blind and solar-blind ultraviolet photodiodes based on (InxGa1-x)2O3Zhang, Zhipeng, von Wenckstern, Holger, Lenzner, Jörg, Lorenz, Michael, Grundmann, Marius 06 August 2018 (has links)
UV and deep-UV selective photodiodes from visible-blind to solar-blind were realized based on a
Si-doped (InxGa1–x)2O3 thin film with a monotonic lateral variation of 0.0035<x<0.83. Such
layer was deposited by employing a continuous composition spread approach relying on the ablation
of a single segmented target in pulsed-laser deposition. The photo response signal is provided
from a metal-semiconductor-metal structure upon backside illumination. The absorption onset was
tuned from 4.83 to 3.22 eV for increasing x. Higher responsivities were observed for photodiodes
fabricated from indium-rich part of the sample, for which an internal gain mechanism could be
identified. VC 2016 AIP Publishing LLC.
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| 4 |
Symphonies of Horror: Musical Experimentation in Howard Shore's Work with David CronenbergShankar, Vikram A 10 August 2017 (has links)
No description available.
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