Autor: Goldys, E. M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Structure, Surface Morphology and Optical Properties of Thin Films of ZnS and CdS Grown by Atomic Layer Epitaxy
Autorzy:: Szczerbakow, A.
Godlewski, M.
Dynowska, E.
Ivanov, V. Yu.
Świątek, K.
Goldys, E. M.
Phillips, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/1992336.pdf
Data publikacji:: 1998-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Jk
68.60.-p
81.15.Gh
Opis:: In this communication we report successful growth of monocrystalline cubic ZnS and monocrystalline and polycrystalline cubic and wurtzite films of CdS by atomic layer epitaxy. Structural and optical properties of these films are analysed. ZnS (and CdS/ZnS) films grown on GaAs substrate are cubic. Atomic layer epitaxy grown films provide several advantages over ZnS and CdS materials grown by other techniques, especially compared to bulk material, which is grown at higher temperatures. First results for ZnS/CdS/ZnS quantum well structures are also discussed.
Źródło:: Acta Physica Polonica A; 1998, 94, 3; 579-582
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Dynamics of Light Emission in CdMnS Nanoparticles
Autorzy:: Godlewski, M.
Yatsunenko, S.
Drozdowicz-Tomsia, K.
Goldys, E. M.
Phillips, M. R.
Klar, P. J.
Heimbrodt, W.
Powiązania:: https://bibliotekanauki.pl/articles/2043717.pdf
Data publikacji:: 2005-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.07.Wx
78.55.Et
78.47.+p
71.55.Gs
76.30.Fc
76.70.Hb
Opis:: We demonstrate coexistence of slow and fast components of photoluminescence decay of the Mn$\text{}^{2+}$ intra-shell emission in nanoparticles of CdMnS. We explain the observed decrease in PL lifetime of the Mn$\text{}^{2+}$ intra-shell transition by high efficiency of spin dependent magnetic interactions between localized spins of Mn$\text{}^{2+}$ ions and free carriers. This mechanism is enhanced in nanostructures, but it is also present in bulk samples.
Źródło:: Acta Physica Polonica A; 2005, 108, 4; 681-688
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Growth and Characterization of ZnO Nanoparticles
Autorzy:: Tomaszewska-Grzęda, A.
Łojkowski, W.
Godlewski, M.
Yatsunenko, S.
Drozdowicz-Tomsia, K.
Goldys, E. M.
Phillips, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/2044547.pdf
Data publikacji:: 2005-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.07.Wx
68.37.Hk
78.55.Et
78.47.+p
Opis:: In this work we evaluate structural and optical properties of ZnO nanoparticles grown by wet chemistry method. Light emission properties of these nanoparticles are studied with cathodoluminescence and micro-photoluminescence. Even at the room temperature excitonic emission is well resolved, due to high exciton binding energy of ZnO. Decay kinetics of photoluminescence emissions and efficiency of inter-nanoparticles energy migration is evaluated from maps of in-plane variations of photoluminescence decay times measured in microphotoluminescence setup.
Źródło:: Acta Physica Polonica A; 2005, 108, 5; 897-902
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Mechanisms of Yellow and Red Photoluminescence in Wurtzite and Cubic GaNDOI
Autorzy:: Godlewski, M.
Suski, T.
Grzegory, I.
Porowski, S.
Langer, R.
Barski, A.
Bergman, J. P.
Monemar, B.
Goldys, E. M.
Phillips, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/1969079.pdf
Data publikacji:: 1998-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.16.Ch
61.72.Ff
71.55.Eq
Opis:: The origin of two "deep" photoluminescence (PL) emissions observed in wurtzite (yellow PL) and cubic (red PL) GaN is discussed. PL and time-resolved PL studies confirm donor-acceptor pair character of the yellow band in wurtzite GaN and point to participation of shallow donors in this emission. A similar PL mechanism is proposed for the red emission of cubic GaN. We further show a puzzling property of both yellow and red PLs. Both yellow and red emissions show spatial homogeneity and are only weakly dependent on surface morphology.
Źródło:: Acta Physica Polonica A; 1998, 94, 2; 326-330
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Origin of Ultrafast Component of Photoluminescence Decay in Nanostructures Doped with Transition Metal or Rare-Earth Ions
Autorzy:: Godlewski, M.
Yatsunenko, S.
Ivanov, V. Yu.
Khachapuridze, A.
Świątek, K.
Goldys, E. M.
Phillips, M. R.
Klar, P. J.
Heimbrodt, W.
Powiązania:: https://bibliotekanauki.pl/articles/2041630.pdf
Data publikacji:: 2005-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Gs
76.30.Fc
76.70.Hb
78.55.Et
Opis:: Bulk samples, layers, quantum well, and quantum dot structures of II-Mn-VI samples all show coexistence of slow and fast components of Mn$\text{}^{2+}$ photoluminescence decay. Thus, fast photoluminescence decay cannot be related to low dimensionality of a host material. This also means that the model of the so-called quantum confined atom is incorrect. Based on the results of time-resolved photoluminescence and optically detected magnetic resonance investigations we relate the observed lifetime decrease in Mn$\text{}^{2+}$ intra-shell transition to spin dependent magnetic interactions between localized spins of Mn$\text{}^{2+}$ ions and between Mn$\text{}^{2+}$ ions and spins/magnetic moments of free carriers. The latter mechanism is enhanced in nanostructures.
Źródło:: Acta Physica Polonica A; 2005, 107, 1; 65-74
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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