Zobrazeno 1 - 10
of 224
pro vyhledávání: '"V. Riede"'
Publikováno v:
Journal of Alloys and Compounds. 414:26-30
The Zn 2 x (CuIn) 1− x X 2 solid solution series with X = S, Se and Te have been investigated concerning variation of the band gap E g with the chemical composition, especially, with regard to the two-phase field (miscibility gap) occuring in all t
Publikováno v:
Journal of Physics and Chemistry of Solids. 66:2052-2057
We present the infrared and Raman study of the optical phonon modes of the defective compounds ZnGa2Se4 and ZnGa2S4. Most of the A II B 2 III C 4 VI compounds have been found to crystallize in the thiogallate structure (defect chalcopyrite) with spac
Publikováno v:
Microporous and Mesoporous Materials. 76:105-112
The incorporation of tungsten into the framework of Si-MCM-41 is described. The synthesis was carried out under basic conditions avoiding the formation of polymeric tungsten species, which can lead to extra framework oxide species. The textural and s
Autor:
H.-C. Semmelhack, Marius Grundmann, H. von Wenckstern, Gabriele Benndorf, Andreas Rahm, V. Riede, Michael Lorenz, E. M. Kaidashev, Holger Hochmuth, Daniel Spemann, Carsten Bundesmann
Publikováno v:
Solid-State Electronics. 47:2205-2209
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 characteriz
Publikováno v:
Advanced Materials. 15:1719-1722
Publikováno v:
Journal of Physics and Chemistry of Solids. 64:1983-1987
The Infrared and Raman study of lattice vibrations of the chalcopyrite compound CuAlSe 2 with a complete assignment of the lattice vibrational modes is reported. Each two modes of E symmetry and one mode of B 2 symmetry have been found in the high fr
Autor:
V. Riede, Klaus Bente, E. P. Zaretskaya, O.V. Ermakov, W. Schmitz, V.F. Gremenok, V.B. Zalesski
Publikováno v:
Journal of Physics and Chemistry of Solids. 64:1989-1993
CuInSe 2 (CIS) thin films were prepared by two-step selenization at various recrystallization temperatures. The comparative analysis of crystalline properties evaluated by XRD, SEM, EDX and Raman scattering measurements is presented here. The crystal
Autor:
E. M. Kaidashev, Carsten Bundesmann, Vanya Darakchieva, Marius Grundmann, V. Riede, B. N. Mbenkum, Hans Arwin, Mathias Schubert, Bo Monemar, Daniel Spemann, N. Ashkenov, Horst Neumann, Gerald Wagner, A. Kasic, Michael Lorenz
Publikováno v:
Journal of Applied Physics. 93:126-133
Infrared dielectric function spectra and phonon modes of high-quality, single crystalline, and highly resistive wurtzite ZnO films were obtained from infrared (300–1200 cm−1) spectroscopic ellipsometry and Raman scattering studies. The ZnO films
Autor:
Michael Lorenz, Dietrich Hesse, I. Stanca, G. Kästner, V. Riede, Holger Hochmuth, D. Matusch, Masanobu Kusunoki, V.L. Svetchnikov
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 11:3209-3212
Large-area pulsed laser deposition (PLD) has reached a state in terms of film quality and reproducibility which makes possible now real market applications of PLD-YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) thin films on both sides of R-plane sapp
Autor:
W. Schmitz, I. V. Bodnar, Klaus Bente, I.A. Victorov, V. Riede, A. Eifler, Th. Doering, V. F. Gremenok
Publikováno v:
Crystal Research and Technology. 35:1135-1140
The crystal structure as well as the optical properties in the band gap region of (CuInTe 2 ) 1-x (2 ZnTe) x solid solution single crystals grown by directional freezing have been studied. The lattice constants exhibit a linear dependence on crystal