Laser desorption ionization time-of-flight mass spectrometry of GexSe1-x chalcogenide glasses, their thin films, and Ge:Se mixtures

Ravi Mawale, Tomáš Halenkovič, Marek Bouška, Jan Gutwirth, Virginie Nazabal, V. Takáts, A. Csík, Josef Havel, Lubomír Prokeš, Petr Němec

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The aim of this work is to generate and study the clusters formed as a result of the interaction of laser pulses with solid state materials such as chalcogenide glasses. The other target is to determine the stoichiometry of the clusters generated from studied chalcogenide glasses and their thin films in order to get the information about structural fragments presents in the plasma plume. The aims were achieved by exploiting laser desorption ionization (LDI) with quadrupole ion trap time-of-flight mass spectrometry (TOFMS) examination of the GexSe1-x (x = 0.1, 0.2, 0.3, 0.33) chalcogenide glasses and Ge0.2Se0.8 and Ge0.33Se0.67 thin films prepared by magnetron sputtering. The interaction of laser pulses with GexSe1-x chalcogenide glasses and their thin films produces many positively and negatively charged unary and binary (Gea +/−, Seb +/−, and GeaSeb +/−) clusters. About ~50 different clusters were identified for each glass sample. We assume that some species indicate local structure of the studied materials. However, other clusters are formed either by a fragmentation of original glass structure or by laser ablation synthesis. When using parafilm, many new, higher mass clusters were produced. The results were compared with LDI TOFMS analysis of Ge:Se elemental mixtures. Concluding, LDI TOFMS is useful technique not only for the generation and study of the clusters but also it gives partial structural information about glasses and other materials as well as information about processes proceeding in the plasma.

Original languageEnglish
Pages (from-to)65-73
Number of pages9
JournalJournal of Non-Crystalline Solids
Volume509
DOIs
Publication statusPublished - Apr 1 2019

Fingerprint

Ionization
Mass spectrometry
Desorption
mass spectroscopy
desorption
ionization
Glass
Thin films
Lasers
glass
thin films
lasers
Laser pulses
Plasmas
Laser ablation
pulses
Stoichiometry
Paraffin
Magnetron sputtering
laser ablation

Keywords

  • Chalcogenide glasses
  • Clusters
  • Laser desorption ionization
  • Thin films
  • Time-of-Flight mass spectrometry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Laser desorption ionization time-of-flight mass spectrometry of GexSe1-x chalcogenide glasses, their thin films, and Ge:Se mixtures. / Mawale, Ravi; Halenkovič, Tomáš; Bouška, Marek; Gutwirth, Jan; Nazabal, Virginie; Takáts, V.; Csík, A.; Havel, Josef; Prokeš, Lubomír; Němec, Petr.

In: Journal of Non-Crystalline Solids, Vol. 509, 01.04.2019, p. 65-73.

Research output: Contribution to journalArticle

Mawale, Ravi ; Halenkovič, Tomáš ; Bouška, Marek ; Gutwirth, Jan ; Nazabal, Virginie ; Takáts, V. ; Csík, A. ; Havel, Josef ; Prokeš, Lubomír ; Němec, Petr. / Laser desorption ionization time-of-flight mass spectrometry of GexSe1-x chalcogenide glasses, their thin films, and Ge:Se mixtures. In: Journal of Non-Crystalline Solids. 2019 ; Vol. 509. pp. 65-73.
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AU - Bouška, Marek

AU - Gutwirth, Jan

AU - Nazabal, Virginie

AU - Takáts, V.

AU - Csík, A.

AU - Havel, Josef

AU - Prokeš, Lubomír

AU - Němec, Petr

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AB - The aim of this work is to generate and study the clusters formed as a result of the interaction of laser pulses with solid state materials such as chalcogenide glasses. The other target is to determine the stoichiometry of the clusters generated from studied chalcogenide glasses and their thin films in order to get the information about structural fragments presents in the plasma plume. The aims were achieved by exploiting laser desorption ionization (LDI) with quadrupole ion trap time-of-flight mass spectrometry (TOFMS) examination of the GexSe1-x (x = 0.1, 0.2, 0.3, 0.33) chalcogenide glasses and Ge0.2Se0.8 and Ge0.33Se0.67 thin films prepared by magnetron sputtering. The interaction of laser pulses with GexSe1-x chalcogenide glasses and their thin films produces many positively and negatively charged unary and binary (Gea +/−, Seb +/−, and GeaSeb +/−) clusters. About ~50 different clusters were identified for each glass sample. We assume that some species indicate local structure of the studied materials. However, other clusters are formed either by a fragmentation of original glass structure or by laser ablation synthesis. When using parafilm, many new, higher mass clusters were produced. The results were compared with LDI TOFMS analysis of Ge:Se elemental mixtures. Concluding, LDI TOFMS is useful technique not only for the generation and study of the clusters but also it gives partial structural information about glasses and other materials as well as information about processes proceeding in the plasma.

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KW - Time-of-Flight mass spectrometry

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