Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Sylwester Porowski"'
Publikováno v:
Journal of Applied Physics
Tetrahedrally-bonded materials, such as silicon, diamond, or gallium nitride, are characterized by a low coordination number of 4 in the crystalline phase and, in general, can exhibit a liquid phase with higher density and coordination. This leads to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a4bb6f11eeda7f0723355db294791f8
https://zenodo.org/record/3559294
https://zenodo.org/record/3559294
First Step in Exploration of Fe-Ga-N System for Efficient Crystallization of GaN at High N2 Pressure
Autor:
Sylwester Porowski, Igor Dzięcielewski, Izabella Grzegory, Petro Sadovyi, Michal Bockowski, B. Sadovyi
Publikováno v:
physica status solidi (a). 215:1700897
Autor:
Izabella Grzegory, M. Wróblewski, Stanisław Krukowski, Sylwester Porowski, Michal Bockowski, Bolesław Łucznik
Publikováno v:
Journal of Crystal Growth. 304:299-309
Ab initio quantum mechanic density functional theory (QM DFT) calculations were used to study the interaction of molecular nitrogen (N2) with metallic Li surface. The calculation has been made using Dmol commercial package provided by Accelrys Inc. A
Autor:
Roland Winter, Smirnovas, Stefan Grudzielanek, Revanur Ravindra, Nicolini C, Anna Loksztejn, Wojciech Dzwolak, Ralf Jansen, Sylwester Porowski
Publikováno v:
Biochemistry. 44:8948-8958
A model cosolvent, ethanol, has profound and diversified effects on the amyloidogenic self-assembly of insulin, yielding spectroscopically and morphologically distinguishable forms of beta-aggregates. The alcohol reduces hydrodynamic radii of insulin
Autor:
Yufeng Zhang, Lukasz Plucinski, Alexei Zakharov, Izabella Grzegory, Ralf Nyholm, Sarah Bernardis, L. Colakerol, Kevin E. Smith, Theodore D. Moustakas, Sylwester Porowski, Tadek Suski, Per Anders Glans, I. Friel, T. Learmonth
Publikováno v:
Solid State Communications. 136:191-195
Photoemission spectra recorded near the Ga 3p photothreshold from GaN have been found to contain satellites of the main Ga 3d emission line. The intensity of these satellites resonate at this threshold, and are associated with a 3d(8) state. The corr
Autor:
Sylwester Porowski, Mike Leszczynski, P. Wisniewski, Tadek Suski, Elzbieta Litwin-Staszewska, Izabella Grzegory, Piotr Perlin, L. H. Dmowski, Szymon Grzanka, Czeslaw Skierbiszewski, Pawel Prystawko, M. Boćkowski, M. Krysko, Marcin Sarzyński, Grzegorz Nowak, A. Libura, R. Czernetzki
Publikováno v:
physica status solidi (a). 200:9-12
GaN single crystals exhibiting the lowest dislocation density (below 100/cm 2 ) are grown at high hydrostatic N 2 pressures of 10-20 kbar. Despite small dimensions of such crystals (up to 1/2) they offer a unique chance to construct high power laser
Autor:
Tadeusz Suski, Izabella Grzegory, W Lojkowski, Stanislaw Krukowski, W Jager, D Kolesnikov, Sylwester Porowski, V Jager, V Bogdanov
Publikováno v:
Journal of Physics: Condensed Matter. 14:11097-11110
Gallium nitride, aluminum nitride and indium nitride are basic materials for blue optoelectronic devices. The essential part of the technology of these devices is annealing at high temperatures. Thermodynamic properties of the Ga–N system and their
Autor:
Sylwester Porowski, Tadeusz Suski, Izabella Grzegory, Robert Czernecki, Pawel Prystawko, Henryk Teisseyre, L. H. Dmowski, M. Boćkowski, P. Perlin, Przemyslaw Wisniewski, Grzegorz Nowak, Michał Leszczyński
Publikováno v:
physica status solidi (a). 192:320-324
Room temperature (RT) pulsed operation of blue (402-427 nm) InGaN multi-quantum well (MQW) structure laser diodes (LDs) grown on bulk GaN crystals have been demonstrated. Substrate crystals were grown with the high nitrogen pressure and high temperat
Autor:
Kazimierz Karłowski, J. Mroczek, J. Arabas, A. Barabasz, J. Szczepek, Sylwester Porowski, B Windyga, A. Grochowska, H. Ścieżyńska, K. Górecka, M. Fonberg-Broczek, D. Grochalska
Publikováno v:
High Pressure Research. 22:725-732
The aim of the study was to define usefulness of high pressure treatment for inactivation of microorganisms and prolongation of shelf life of two types of cooked pork ham and raw smoked pork loin. The samples of ham and loin in the presentation of st
Autor:
Izabella Grzegory, Marcin Sarzyński, M. Kryśko, Tomasz Sochacki, Sylwester Porowski, Bolesław Łucznik, Igor Dzięcielewski
Publikováno v:
physica status solidi c. 8:2117-2119
It is suggested that final bowing of {0001} planes in free standing GaN depends mostly on the nucleation mechanism at the beginning of the growth in the presented approach. Typical growth process in this study, includes formation of pyramidal islands