Detail publikace

2d distribution mapping of quantum dots injected onto filtration paper by laser-induced breakdown spectroscopy

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"
}