Autor: Dovbeshko, G. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Supercapacity of Soft-Expanded Graphite in Li-Intercalational Electric Current Generation
Autorzy:: Shvets, R.
Grygorchak, I.
Kurepa, A.
Pokladok, N.
Sementsov, Yu.
Dovbeshko, G.
Sheregii, Ye.
Seredyuk, B.
Powiązania:: https://bibliotekanauki.pl/articles/1402576.pdf
Data publikacji:: 2015-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.16.Fg
82.45.Vp
Opis:: A microwave-intercalation modification of natural graphite which ensures its effective use as a cathode material of Li-based sources of electric current is developed. Interconnection between the parameters of modification and thermodynamic and kinetic behavior of Li-intercalation electric current generation is established. On the basis of the obtained data from impedance spectroscopy, X-ray diffractometry analysis, and spectroscopy of the Raman scattering of light, the mechanism of the observed phenomena is suggested.
Źródło:: Acta Physica Polonica A; 2015, 128, 2; 208-209
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Optical and electrical properties of highly doped ZnO:Al films deposited by atomic layer deposition on Si substrates in visible and near infrared region
Autorzy:: Romanyuk, V.
Dmitruk, N.
Karpyna, V.
Lashkarev, G.
Popovych, V.
Dranchuk, M.
Pietruszka, R.
Godlewski, M.
Dovbeshko, G.
Timofeeva, I.
Kondratenko, O.
Taborska,, M.
Ievtushenko, A.
Powiązania:: https://bibliotekanauki.pl/articles/1156366.pdf
Data publikacji:: 2016-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.66.Hf
73.61.Ga
Opis:: Optical properties of ZnO films doped by Al in the range 0.5 to 7 at.% and deposited by atomic layer deposition were studied in visible and infrared spectral range. Spectral dependences of film optical permittivity were modeled with the Lorentz-Drude approximation resulting in ZnO:Al plasma frequency and plasma damping parameters. We observed changing electron effective mass from 0.29m₀ to 0.5m₀ with increasing electron concentration in the range (0.9-4) × 10²⁰ due to the phenomenon of conduction band non-parabolicity. Comparing the results of optical and electrical investigations we can see that the main scattering mechanism is the scattering on grain boundaries (its contribution is about 60%).
Źródło:: Acta Physica Polonica A; 2016, 129, 1a; A-36-A-40
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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