Autor: Babinski, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Intershell Exchange Interaction in Charged GaAlAs Quantum Dots
Autorzy:: Molas, M.
Nicolet, A.
Potemski, M.
Babiński, A.
Powiązania:: https://bibliotekanauki.pl/articles/1399082.pdf
Data publikacji:: 2013-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.67.Hc
71.35.-y
78.55.Cr
71.70.Gm
Opis:: Optical anisotropy of charged excitons and biexcitons related to the single-particle s- and p-shell emission in GaAlAs/AlAs quantum dots is investigated. The polarization-dependence and time-resolved micro-photoluminescence measurements were performed. Cross-correlation measurements were used to identify the ladder of excitonic states and allowed us to show two cascade pathways, including the spin singlet and triplet states of charged excitons and biexcitons. The fine structure of the studied states is described and analysed in terms of electron-electron, hole-hole, and electron-hole exchange interactions.
Źródło:: Acta Physica Polonica A; 2013, 124, 5; 785-787
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Magnetic Field Effect on the Excitation Spectrum of a Neutral Exciton in a Single Quantum Dot
Autorzy:: Molas, M.
Nicolet, A.
Piętka, B.
Babiński, A.
Potemski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1375688.pdf
Data publikacji:: 2014-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.67.Hc
71.35.-y
78.55.Cr
Opis:: Excitation-energy-dependent magnetospectroscopic measurements of a single GaAlAs/AlAs quantum dot were performed. A significant effect of the excitation energy on the photoluminescence spectra is reported. The photoluminescence excitation spectroscopy has been used to investigate the excitation spectrum of a single electron-hole pair - a neutral exciton in magnetic field up to 14 T. The observed resonances exhibit diamagnetic shift characteristic of an s-shell related emission. In our opinion, the creation of excited complexes involving an excited hole and a ground electron is responsible for the process.
Źródło:: Acta Physica Polonica A; 2014, 126, 5; 1066-1068
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: The Effect of Substrate on Vibrational Properties of Single-Layer MoS₂
Autorzy:: Gołasa, K.
Molas, M.
Nogajewski, K.
Grzeszczyk, M.
Zinkiewicz, M.
Potemski, M.
Babiński, A.
Powiązania:: https://bibliotekanauki.pl/articles/1398570.pdf
Data publikacji:: 2016-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 63.22.-m
71.35.-y
78.20.-e
78.30.-j
Opis:: We report on the Raman scattering from single-layer molybdenum disulfide (MoS₂) deposited on various substrates: Si/SiO₂, hexagonal boron nitride (h-BN), sapphire, as well as suspended. Room temperature Raman scattering spectra are investigated under both resonant (632.8 nm) and non-resonant (514.5 nm) excitations. A rather weak influence of the substrate on the Raman scattering signal is observed. The most pronounced, although still small, is the effect of h-BN, which manifests itself in the change of energy positions of the E' and A'₁ Raman modes of single-layer MoS₂. We interpret this modification as originating from van der Waals interaction between the MoS₂ and h-BN layers.
Źródło:: Acta Physica Polonica A; 2016, 130, 5; 1172-1175
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

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

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