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Wyszukujesz frazę "Binder, K." wg kryterium: Wszystkie pola


Wyświetlanie 1-5 z 5
Tytuł:
On Melting of Two-Dimensional Monolayer Films
Autorzy:
Patrykiejew, A.
Zientarski, T.
Binder, K.
Powiązania:
https://bibliotekanauki.pl/articles/1945440.pdf
Data publikacji:
1996-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.65.-i
64.60.-i
Opis:
The melting of two-dimensional films formed on the (100) fcc crystal is studied by Monte Carlo simulation. The results obtained suggest that in systems with only weakly corrugated surface potential, exhibiting the hexagonal close packed solid structure, the melting transition is followed by the Ising-type transition as predicted by the theory of Nelson and Halperin. In the case of highly corrugated surface potential, the film forms registered structure which disorders gradually as the temperature is raised.
Źródło:
Acta Physica Polonica A; 1996, 89, 5-6; 735-742
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photoluminescence Dynamics of GaN/Si Nanowires
Autorzy:
Korona, K.
Zytkiewicz, Z.
Perkowska, P.
Borysiuk, J.
Binder, J.
Sobanska, M.
Klosek, K.
Powiązania:
https://bibliotekanauki.pl/articles/1403621.pdf
Data publikacji:
2012-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.55.Cr
73.22.-f
78.47.jd
Opis:
In this work we present analysis of carriers dynamics in samples of GaN nanowires grown on silicon. The samples exhibit bright luminescence of bulk donor-bound excitons at 3.472 eV, surface defect-bound excitons at 3.450 eV (SDX) and a broad (0.05 eV) band centered at 3.47 eV caused probably by single free exciton and bi-exciton recombination. The SDX emission has long lifetime τ = 0.6 ns at 4 K and can be observed up to 50 K. At higher temperatures luminescence is dominated by free excitons. The broad excitonic band is best visible under high excitation, and reveals fast, non-exponential dynamics. We present mathematical model assuming exciton-exciton interaction leading to the Auger processes. The model includes $n^2$ (Langevin) term and describes well the non-exponential dynamics of the excitonic band.
Źródło:
Acta Physica Polonica A; 2012, 122, 6; 1001-1003
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical Properties of Molybdenum Disulfide $(MoS_2)$
Autorzy:
Gołasa, K.
Grzeszczyk, M.
Korona, K.
Bożek, R.
Binder, J.
Szczytko, J.
Wysmołek, A.
Babiński, A.
Powiązania:
https://bibliotekanauki.pl/articles/1399110.pdf
Data publikacji:
2013-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
63.22.-m
71.35.-y
78.20.-e
78.30.-j
Opis:
Research of a monolayer and a bulk $MoS_2$ is reported. The room temperature Raman spectra of the natural $MoS_2$ crystals for the both resonant (632.8 nm) and the non-resonant (532 nm) excitation are presented. The apparent differences observed in the spectra from the bulk and the one monolayer $MoS_2$ are discussed. In particular, the feature due to a first order scattering involving the LA(M) phonon in the resonance Raman spectrum of the one monolayer $MoS_2$ was observed and explained in terms of the disorder in the natural crystal. The disorder is also documented by the line-shape of the room-temperature photoluminescence spectra observed from both the bulk and the one monolayer $MoS_2$.
Źródło:
Acta Physica Polonica A; 2013, 124, 5; 849-851
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Graphene Based Flow Sensors
Autorzy:
Kaźmierczak, P.
Binder, J.
Boryczko, K.
Ciuk, T.
Strupiński, W.
Stępniewski, R.
Wysmołek, A.
Powiązania:
https://bibliotekanauki.pl/articles/1195452.pdf
Data publikacji:
2014-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.65.Pq
72.80.Vp
73.30.+y
Opis:
We report on attempts to produce a graphene based liquid flow sensor. Our results indicate that modifications of the electric double layer, formed in the vicinity of the graphene surface, dominate over mechanisms responsible for liquid flow-induced voltage/current generation. Several graphene structures were tested in different measurement configurations, aimed to maximize the generated signal amplitude and its stability. Some realizations of working devices in water as well as in aqueous solutions of NaCl or HCl are presented.
Źródło:
Acta Physica Polonica A; 2014, 126, 5; 1209-1211
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Absorption and Emission Properties of Light Emitting Diode Structures Containing GaInN/GaN QWs
Autorzy:
Binder, J.
Korona, K.
Borysiuk, J.
Wysmołek, A.
Baeumler, M.
Köhler, K.
Kirste, L.
Powiązania:
https://bibliotekanauki.pl/articles/1492933.pdf
Data publikacji:
2011-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.55.Cr
72.40.+w
73.61.Ey
Opis:
In this work we present measurements of GaInN/GaN light emitting diodes (LEDs) with an active layer consisting of three quantum wells made of $Ga_{0.9}In_{0.10}N$ that have different widths (1.8 nm, 2.7 nm, 3.7 nm). A comparison of emission and absorption (photocurrent) on the same sample revealed a shift in energy, with the emission energy being significantly lower. The shifts are about 0.02 eV, 0.03 eV, and 0.04 eV for the quantum wells having the widths of 1.8 nm, 2.7 nm, and 3.7 nm, respectively. This can be explained by a shift of the ground state energy caused by the quantum confined Stark effect. Calculations show that due to the spontaneous polarization and the piezoelectric effect a strong electric field of the order of 1 MV/cm was present in the GaInN quantum wells. Simulations of ground-state energies in the model of an infinite square well under the influence of an electric field with a matched effective well width were performed and used to interpret the experimental results.
Źródło:
Acta Physica Polonica A; 2011, 120, 5; 918-920
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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