Zobrazeno 1 - 10 of 37 pro vyhledávání: '"Michal Horák"'
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Plasmonic Properties of Individual Gallium Nanoparticles
Autor: Michal Horák, Vojtěch Čalkovský, Jindřich Mach, Vlastimil Křápek, Tomáš Šikola
Publikováno v: The Journal of Physical Chemistry Letters. 14:2012-2019
Gallium is a plasmonic material offering ultraviolet to near-infrared tunability, facile and scalable preparation, and good stability of nanoparticles. In our contribution, we experimentally demonstrate the link between the shape and size of individu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93bb622b6de36875f28abad09a6b7b76
https://doi.org/10.1021/acs.jpclett.3c00094
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5
Low temperature 2D GaN growth on Si(111) 7 x 7 assisted by hyperthermal nitrogen ions
Autor: Jaroslav Maniš, Jindřich Mach, Miroslav Bartošík, Tomáš Šamořil, Michal Horák, Vojtěch Čalkovský, David Nezval, Lukáš Kachtik, Martin Konečný, Tomáš Šikola
Publikováno v: NANOSCALE ADVANCES. 2022, vol. 1, issue 1, p. 1-8.
Nanoscale Advances
As the characteristic dimensions of modern top-down devices are getting smaller, such devices reach their operational limits imposed by quantum mechanics. Thus, two-dimensional (2D) structures appear to be one of the best solutions to meet the ultima
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::034ca35e23d3f5fed12cadd05b27ab89
https://zenodo.org/record/7140167
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6
Influence of primary beam energy on localized surface plasmon resonances mapping by STEM-EELS
Autor: Michal Horák, Tomáš Šikola
Publikováno v: Microscopy and Microanalysis. 2021, vol. 27, issue S1, p. 686-688.
We have discussed the impact on experimental characteristics which are important to detect localized surface plasmon peaks in EELS successfully, namely: the intensity of plasmonic signal, the signal to background ratio, and the signal to zero-loss pe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea4df2fbcb786e40b22a01e5149f4ba3
https://doi.org/10.1017/s1431927621002828
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7
Magnetic Near Field Imaging with Electron Energy Loss Spectroscopy Based on Babinet's Principle
Autor: Tomáš Šikola, Martin Hrtoň, Michael Stöger-Pollach, Michal Horák, Vlastimil Křápek, Filip Ligmajer, Andrea Konečná
Publikováno v: Microscopy and Microanalysis. 2020, vol. 26, issue S2, p. 2628-2630.
We present a study of Babinet’s principle of complementarity in plasmonics focused on measuring the magnetic near field by EELS. We have studied bow-tie and diabolo antennas and elementary disc-shaped plasmonic antennas.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c768c7b6a293e717e81dbdd18ff8991
https://doi.org/10.1017/s1431927620022242
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8
Preparation of graphene quantum dots through liquid phase exfoliation method
Autor: Petr Sedlacek, Jan Pospisil, Jaromir Hubalek, Lukas Nejdl, Veronika Schmiedova, Radim Zahradnicek, Michal Horák, Rajneesh Mohan, Oldrich Zmeskal, Martin Weiter, L. Zdrazil
Publikováno v: Journal of Luminescence. 204:203-208
Here we report the preparation of low defect blue fluorescent graphene quantum dots (GQDs) through microwave expansion and liquid phase exfoliation (LPE) of graphite flakes with a high preparation yield of 0.63 g of GQDs per 1 g of original graphite
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cfa6ed6deec9794f11dc453eef8f697c
https://doi.org/10.1016/j.jlumin.2018.08.017
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