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Andreas Rahm
Researcher at Leipzig University
Publications - 68
Citations - 2487
Andreas Rahm is an academic researcher from Leipzig University. The author has contributed to research in topics: Pulsed laser deposition & Thin film. The author has an hindex of 23, co-authored 66 publications receiving 2370 citations.
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Journal ArticleDOI
High electron mobility of epitaxial ZnO thin films on c-plane sapphire grown by multistep pulsed-laser deposition
E. M. Kaidashev,Michael Lorenz,H. von Wenckstern,Andreas Rahm,H.-C. Semmelhack,K.-H. Han,Gabriele Benndorf,Carsten Bundesmann,Holger Hochmuth,Marius Grundmann +9 more
TL;DR: In this article, a multistep pulsed-laser deposition (PLD) process is presented for epitaxial, nominally undoped ZnO thin films of total thickness of 1 to 2 μm on c-plane sapphire substrates.
Journal ArticleDOI
Whispering gallery modes in nanosized dielectric resonators with hexagonal cross section.
TL;DR: The size dependence of whispering gallery modes in dielectric resonators with hexagonal cross section has been observed within the visible spectral range for cavity diameters comparable to the light wavelength.
Journal ArticleDOI
MgxZn1−xO(0⩽x<0.2) nanowire arrays on sapphire grown by high-pressure pulsed-laser deposition
Michael Lorenz,E. M. Kaidashev,Andreas Rahm,Th. Nobis,Jörg Lenzner,Gerald Wagner,Daniel Spemann,Holger Hochmuth,Marius Grundmann +8 more
TL;DR: In this paper, high-pressure pulsed-laser deposition (PLD) was used to grow MgxZn1−xO nanowires on gold-covered sapphire single crystals.
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Dielectric functions (1 to 5 eV) of wurtzite MgXZn1 -XO (x≤0.29) thin films
R. Schmidt,Bernd Rheinländer,M. Schubert,Daniel Spemann,Tilman Butz,Jörg Lenzner,E. M. Kaidashev,Michael Lorenz,Andreas Rahm,H.-C. Semmelhack,Marius Grundmann +10 more
TL;DR: In this article, the optical dielectric functions for polarization perpendicular and parallel to the c-axis (optical axis) of pulsed-laser-deposition grown wurtzite MgxZn1−xO (0⩽x ⩽0.29) thin films have been determined at room temperature using ellipsometry for photon energies from 1 to 5 eV.
Journal ArticleDOI
Optical and electrical properties of epitaxial (Mg,Cd)xZn1−xO, ZnO, and ZnO:(Ga,Al) thin films on c-plane sapphire grown by pulsed laser deposition
Michael Lorenz,E. M. Kaidashev,H. von Wenckstern,V. Riede,Carsten Bundesmann,Daniel Spemann,Gabriele Benndorf,Holger Hochmuth,Andreas Rahm,H.-C. Semmelhack,Marius Grundmann +10 more
TL;DR: In this article, a consistent set of epitaxial, n-type conducting ZnO thin films, nominally undoped, doped with Ga or Al, or alloyed with Mg or Cd, was grown by pulsed laser deposition (PLD) on single-crystalline c-plane sapphire (0, 0,0,1) substrates, and characterized by Hall measurement, and UV/VIS optical transmission spectroscopy.