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MODLITBOVÁ, P. NOVOTNÝ, K. LUBAL, P. JEBAVÁ, A. POŘÍZKA, P. KLUS, J. FARKA, Z. HRDLIČKA, A. KAISER, J.
Originální název
2d distribution mapping of quantum dots injected onto filtration paper by laser-induced breakdown spectroscopy
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
In this study, the feasibility of Quantum dots (QDs) 2D distribution mapping on the substrate by Laser-Induced BreakdownSpectroscopy (LIBS) was examined. The major objective of this study was to describe phenomena occurring after applying aqueous solutions of QDs onto filtration paper. Especially, the influence of pH and presence of Cu2+ cations in QDs solutions on LIBS signal was investigated. Cadmium Telluride QDs (CdTe QDs) were prepared by formation of nanosized semiconductor particles in so called “one-pot” synthesis. CdTe QDs were capped by glutathione or by 3-mercaptopropionic acid. The technique described in this work allows detection of QDs injected on the selected substrate – filtration paper. Results obtained from LIBS experiments were collated with a comparative method, fluorescence microscopy, which showed variations in the distribution of QDs on the substrate surface and possibilities for quenching. Due to the immediate signal response, relatively simple instrumentation and automatization possibility, LIBS offers promising and fast alternative to other techniques, as it is able to detect also nanoparticles with no visible luminescence.
Klíčová slova
Quantum dots, Laser-induced breakdown spectroscopy, Chemical mapping, Filtration paper, Fluorescence microscopy
Autoři
MODLITBOVÁ, P.; NOVOTNÝ, K.; LUBAL, P.; JEBAVÁ, A.; POŘÍZKA, P.; KLUS, J.; FARKA, Z.; HRDLIČKA, A.; KAISER, J.
Vydáno
1. 5. 2017
Nakladatel
Elsevier B.V.
ISSN
0584-8547
Periodikum
Spectrochimica Acta Part B
Ročník
131
Číslo
3
Stát
Spojené království Velké Británie a Severního Irska
Strany od
107
Strany do
114
Strany počet
8
BibTex
@article{BUT134294, author="Pavlína {Modlitbová} and Karel {Novotný} and Přemysl {Lubal} and Alžběta {Jebavá} and Pavel {Pořízka} and Jakub {Klus} and Zdeněk {Farka} and Aleš {Hrdlička} and Jozef {Kaiser}", title="2d distribution mapping of quantum dots injected onto filtration paper by laser-induced breakdown spectroscopy", journal="Spectrochimica Acta Part B", year="2017", volume="131", number="3", pages="107--114", doi="10.1016/j.sab.2017.03.016", issn="0584-8547" }