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

ŠKARKOVÁ, Pavlína, Karel NOVOTNÝ, Přemysl LUBAL, Alžběta JEBAVÁ, Pavel POŘÍZKA, Jakub KLUS, Zdeněk FARKA, Aleš HRDLIČKA and Jozef KAISER. 2D distribution mapping of quantum dots injected onto filtration paper by laser-induced breakdown spectroscopy. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY. Oxford: PERGAMON-ELSEVIER SCIENCE LTD, 2017, vol. 131, May, p. 107-114. ISSN 0584-8547. Available from: https://dx.doi.org/10.1016/j.sab.2017.03.016.

Basic information

• Original name: 2D distribution mapping of quantum dots injected onto filtration paper by laser-induced breakdown spectroscopy
• Authors: ŠKARKOVÁ, Pavlína (203 Czech Republic), Karel NOVOTNÝ (203 Czech Republic, guarantor, belonging to the institution), Přemysl LUBAL (203 Czech Republic, belonging to the institution), Alžběta JEBAVÁ (203 Czech Republic, belonging to the institution), Pavel POŘÍZKA (203 Czech Republic), Jakub KLUS (203 Czech Republic), Zdeněk FARKA (203 Czech Republic, belonging to the institution), Aleš HRDLIČKA (203 Czech Republic, belonging to the institution) and Jozef KAISER (203 Czech Republic).
• Edition: SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, Oxford, PERGAMON-ELSEVIER SCIENCE LTD, 2017, 0584-8547.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10406 Analytical chemistry
• Country of publisher: United Kingdom of Great Britain and Northern Ireland
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 2.854
• RIV identification code: RIV/00216224:14740/17:00096356
• Organization unit: Central European Institute of Technology
• Doi: http://dx.doi.org/10.1016/j.sab.2017.03.016
• UT WoS: 000401200700014
• Keywords in English: Quantum dots; Laser-induced breakdown spectroscopy; Chemical mapping; Filtration paper; Fluorescence microscopy
• Tags: rivok
• Tags: International impact, Reviewed

Abstract

In this study, the feasibility of Quantum dots (QDs) 2D distribution mapping on the substrate by Laser-Induced Breakdown Spectroscopy (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.

Links

• LQ1601, research and development project: Name: CEITEC 2020 (Acronym: CEITEC2020)

Investor: Ministry of Education, Youth and Sports of the CR

• MUNI/A/0886/2016, interní kód MU: Name: Analytické a fyzikálně-chemické metody ve výzkumu, vývoji a aplikacích (Acronym: AFCH)

Investor: Masaryk University, Category A