Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Leopold Palmetshofer"'
Autor:
Leopold Palmetshofer
Publikováno v:
Surface and Thin Film Analysis: A Compendium of Principles, Instrumentation, and Applications, Second Edition
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 255:105-109
The size of collision cascades of heavy ions in silicon as calculated by molecular dynamics or other simulation methods is considerably larger than the size of the amorphous pockets observed by transmission electron microscopy (TEM). Using multislice
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 253:227-231
Ion-beam-induced interfacial amorphization (IBIIA) of Si, i.e. the growth of an existing amorphous layer upon ion bombardment, has previously been demonstrated for high-energy (MeV) heavy ions. Using transmission electron microscopy we show that IBII
Publikováno v:
Applied Surface Science. 252:271-277
In the last decade ion implantation of common dopants in silicon has been almost full characterised. However, data of inner transition elements are based on few measurements or even extrapolations. Our investigations focus on erbium, an upcoming dopa
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 228:360-363
Coupled binary collision and kinetic lattice Monte Carlo simulations are used to analyze 30 keV B channeling profile measurements of damage from 30 keV N implants in (1 1 0)-Si. Collision cascades are generated in the binary collision approach, while
Autor:
Maja Müller, Jarmila Cervena, Lewis T. Chadderton, Leopold Palmetshofer, V. Hnatowicz, J. Vacik, R. Klett, D. Fink, Alexander Petrov
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 191:662-668
The penetration of aqueous 6Li+ markers into low energy ion irradiated polyimide (PI) foils was examined by the neutron depth profiling technique in combination with a modified tomographic approach. The ion irradiation always leads to an enhancement
Publikováno v:
Physica B: Condensed Matter. :344-347
The only way to obtain room temperature electroluminescence at 1.54 μm from Si diodes due to intra-atomic transitions of erbium is the excitation of SiO 2 : Er clusters by hot electron injected in a reverse biased diode. Impact excitation of erbium
Simultaneous doping of silicon layers with erbium and oxygen in the course of molecular-beam epitaxy
Autor:
M. V. Stepikhova, H. Ellmer, D. V. Shengurov, V. G. Shengurov, G. A. Maksimov, Boris A. Andreev, S. P. Svetlov, V. Yu. Chalkov, Z. F. Krasilnik, Leopold Palmetshofer
Publikováno v:
Semiconductors. 35:918-923
Epitaxial silicon layers codoped with erbium and oxygen were grown by molecular-beam epitaxy using a silicon sublimation source. For growing the erbium-doped silicon layers, two types of impurity sources were used: (i) erbium-doped silicon plates wer
Publikováno v:
Materials Science and Engineering: B. 81:86-90
Depending on the doping and annealing conditions, as well as the oxygen content, erbium produces a big variety of different centres in silicon. These centres can be distinguished by their fine structure patterns seen both in luminescence and in excit
Publikováno v:
Microchimica Acta. 135:105-111
The distribution of the relevant elements within TiN coatings, made with two different physical deposition methods as the conventional dc vacuum arc method and the filtered high current pulsed arc method (-HCA) are characterized and finally compared.