Zobrazeno 1 - 10
of 162
pro vyhledávání: '"G. Wiech"'
Publikováno v:
Scopus-Elsevier
The occupied electronic states of diamond-like hydrogenated carbon (a-C:H) were studied by X-ray emission spectroscopy. We measured (i) the C K emission bands and (ii) the optical band gaps obtained from transmission measurements via the Tauc correla
Autor:
G. Wiech, A. Šimudotnek
Publikováno v:
Journal of Non-Crystalline Solids. :161-164
It is demonstrated that, by a detailed analysis of the X-ray emission bands for hydrogenated amorphous SiN x and SiO x alloy films, it is possible to distinguish between the local structure described by the random-bond and random-mixture models.
Publikováno v:
Journal of Materials Research. 10:907-911
The SiL2.3 emission spectra of amorphous W/Si multilayers were measured. For the as-deposited samples the SiL2,3 emission spectra have been found to be very close to that of amorphous Si. The formation of WSi2 phase during annealing of W/Si multilaye
Autor:
G. Wiech, A. Šimůnek
Publikováno v:
Physical Review B. 49:5398-5405
We have studied silicon-nitrogen bonding states in amorphous ${\mathrm{SiN}}_{\mathit{x}}$:H alloy films and in crystalline \ensuremath{\alpha}-${\mathrm{Si}}_{3}$${\mathrm{N}}_{4}$ and \ensuremath{\beta}-${\mathrm{Si}}_{3}$${\mathrm{N}}_{4}$ by appl
Publikováno v:
Journal of Non-Crystalline Solids. :1023-1026
The X-ray Si K-, Si L- and C K-emission bands of a series of amorphous hydrogenated silicon-carbon alloy films (a-Si 1−x C x :H, 0 ≤ x ≤ 0.78) have been measured to study the electronic structure and the local silicon and carbon bonding of thes
Autor:
A. Šimudotnek, G. Wiech
Publikováno v:
Journal of Non-Crystalline Solids. :1077-1080
We present Si K- and Si L-emission bands of amorphous SiNx:H alloy films (0 ⩽ x ⩽ 2) prepared by plasma deposition at low power. We discuss the photon energy positions of spectral features in the Si K- and Si L-emission bands in view of the rando
Publikováno v:
Physical Review B. 47:6981-6989
We present x-ray Si K, Si L, and O K emission bands of hydrogenated amorphous ${\mathrm{SiO}}_{\mathit{x}}$ alloy films covering the concentration range 0\ensuremath{\le}x\ensuremath{\le}2.2. All spectral features in the emission bands were identifie
Autor:
A. Šim⫲nek, G. Wiech
Publikováno v:
Zeitschrift für Physik B Condensed Matter. 93:51-55
We have measured the MgL-, AlL- and PL-emission bands of MgO, α-Al2O3 and AlPO4, respectively. For MgO and Al2O3 the electronic structure and the X-ray emission bands have been calculated. In spite of different crystal structure and chemical composi
Local s, p and d charge distributions and X-ray emission bands of SiO2: alpha -quartz and stishovite
Publikováno v:
Journal of Physics: Condensed Matter. 5:867-874
An experimental and theoretical study of the electronic structure and the X-ray Si K and Si L emission bands of 4:2-coordinated alpha -quartz and 6:3-coordinated stishovite is presented. The nature of atomic states participating in the X-ray valence
Publikováno v:
Physica Scripta. :288-292
A description is given of an x-ray emission spectrometer with high spatial (4 μm) and energy resolution (0.3-1.2 eV) and of its application to the study of electronic structure of transition metal mono- and disilicides, carbon coatings, vanadium bor