Autor: Lukasiewicz, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optical Properties of ZnCoO Films and Nanopowders
Autorzy:: Wolska, E.
Łukasiewicz, M.
Fidelus, J.
Łojkowski, W.
Guziewicz, E.
Godlewski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1791349.pdf
Data publikacji:: 2009-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Ln
78.55.Et
81.07.Wx
61.72.uf
78.66.Hf
Opis:: ZnCoO is one of the most studied and promising semiconductor materials for spintronics applications. In this work we discuss optical and electrical properties of ZnCoO films and nanoparticles grown at low temperature by either atomic layer deposition or by a microwave driven hydrothermal method. We report that doping with cobalt quenches a visible photoluminescence of ZnO. We could observe a visible photoluminescence of ZnO only for samples with very low Co fractions (up to 1%). Mechanisms of photoluminescence quenching in ZnCoO are discussed. We also found that ZnO films remained n-type conductive after doping with Co, indicating that a high electron concentration and cobalt 2+ charge state can coexist.
Źródło:: Acta Physica Polonica A; 2009, 116, 5; 918-920
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Microwave Techniques Investigations of ZnCoO Films Grown by Atomic Layer Deposition
Autorzy:: Łukasiewicz, M.
Cabaj, A.
Godlewski, M.
Guziewicz, E.
Wittlin, A.
Jaworski, M.
Wołoś, A.
Wilamowski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/1492931.pdf
Data publikacji:: 2011-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Ln
68.55.Nq
78.66.Hf
81.15.Kk
Opis:: Electrical and magnetic properties of ZnCoO thin films grown on silicon substrates by atomic layer deposition method are investigated. The films were grown using reactive organic precursors of zinc and cobalt. The use of these precursors allowed us the significant reduction of a growth temperature to 200°C and below, which proved to be very important for the growth of uniform films of ZnCoO. We have measured the microwave AC conductivity and EPR for two types of ZnCoO samples, with different Co fractions.
Źródło:: Acta Physica Polonica A; 2011, 120, 5; 911-913
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: (Zn,Cu)O Films by Atomic Layer Deposition - Structural, Optical and Electric Properties
Autorzy:: Łukasiewicz, M.
Witkowski, B.
Wachnicki, Ł.
Kopalko, K.
Gierałtowska, S.
Wittlin, A.
Jaworski, M.
Guziewicz, E.
Godlewski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1492571.pdf
Data publikacji:: 2011-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Ln
68.55.Nq
78.66.Hf
81.15.Kk
Opis:: ZnCuO thin films have been deposited on silicon, glass and quartz substrates by atomic layer deposition method, using reactive organic precursors of zinc and copper. As zinc and copper precursors we applied diethylzinc and copper(II) acetyloacetonate. Structural, electrical and optical properties of the obtained ZnCuO layers are discussed based on the results of scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, atomic force microscopy, the Hall effect and photoluminescence investigations.
Źródło:: Acta Physica Polonica A; 2011, 120, 6A; A-034-A-036
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: ZnCoO Films by Atomic Layer Deposition - Influence of a Growth Temperature οn Uniformity of Cobalt Distribution
Autorzy:: Łukasiewicz, M.
Witkowski, B.
Godlewski, M.
Guziewicz, E.
Sawicki, M.
Paszkowicz, W.
Łusakowska, E.
Jakieła, R.
Krajewski, T.
Kowalik, I.
Kowalski, B.
Powiązania:: https://bibliotekanauki.pl/articles/1791350.pdf
Data publikacji:: 2009-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Ln
68.55.Nq
78.66.Hf
81.15.Kk
Opis:: We report on the structural, electrical and magnetic properties of ZnCoO thin films grown by atomic layer deposition method using reactive organic precursors of zinc and cobalt. As a zinc precursor we applied either dimethylzinc or diethylzinc and cobalt(II) acetyloacetonate as a cobalt precursor. The use of these precursors allowed us the significant reduction of a growth temperature to 300°C and below, which proved to be very important for the growth of uniform films of ZnCoO. Structural, electrical and magnetic properties of the obtained ZnCoO layers will be discussed based on the results of secondary ion mass spectroscopy, scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, atomic force microscopy, Hall effect and SQUID investigations.
Źródło:: Acta Physica Polonica A; 2009, 116, 5; 921-923
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: ZnCoO Films Obtained at Low Temperature by Atomic Layer Deposition Using Organic Zinc and Cobalt Precursors
Autorzy:: Łukasiewicz, M.
Wójcik-Głodowska, A.
Guziewicz, E.
Jakieła, R.
Krajewski, T.
Łusakowska, E.
Paszkowicz, W.
Minikayev, R.
Kiecana, M.
Sawicki, M.
Godlewski, M.
Wachnicki, Ł.
Szczepanik, A.
Powiązania:: https://bibliotekanauki.pl/articles/1811957.pdf
Data publikacji:: 2008-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Ln
68.55.Nq
78.66.Hf
81.15.Kk
Opis:: In this paper we report on ZnCoO thin films grown by atomic layer deposition method in reactor F-120 Satellite. ZnCoO films were grown at low temperature ($T_s$=160°C) with a new zinc precursor (dimethylzinc - DMZn) and with cobalt (II) acetyloacetonate (Co(acac)₂) as a cobalt precursor and deionized water as an oxygen precursor. In this paper we concentrate on the methods of homogenizing Co distribution in ZnCoO films.
Źródło:: Acta Physica Polonica A; 2008, 114, 5; 1235-1240
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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