Publication detail

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.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

Quantum dots, Laser-induced breakdown spectroscopy, Chemical mapping, Filtration paper, Fluorescence microscopy

Authors

MODLITBOVÁ, P.; NOVOTNÝ, K.; LUBAL, P.; JEBAVÁ, A.; POŘÍZKA, P.; KLUS, J.; FARKA, Z.; HRDLIČKA, A.; KAISER, J.

Released

1. 5. 2017

Publisher

Elsevier B.V.

ISBN

0584-8547

Periodical

Spectrochimica Acta Part B

Year of study

131

Number

3

State

United Kingdom of Great Britain and Northern Ireland

Pages from

107

Pages to

114

Pages count

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"
}