1. Laser Desorption Ionization Time-of-Flight Mass Spectrometry of Glasses and Amorphous Films from Ge-As-Se System
- Author
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Emeline Baudet, Virginie Nazabal, Petr Němec, Lubomír Prokeš, Josef Havel, Katarína Šútorová, Department of Chemistry (A14/107), Masaryk University [Brno] (MUNI), Department of Physical Electronics, R&D Center for Low-Cost Plasma and Nanotechnology Surface Modifications, Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Department of Graphic Arts and Photophysics [University of Pardubice], Faculty of Chemical Technology [University of Pardubice], University of Pardubice-University of Pardubice, Czech Science Foundation [13-05082S], CEPLANT, th project R&D center for low-cost plasma and nanotechnology surface modifications - European Regional Development Fund [CZ.1.05/2.1.00/03.0086], Czech Ministry of Education, Youth, and Sports of the Czech Republic [LM2015082, CZ.1.05/4.1.00/11.0251], Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Materials science ,Chalcogenide ,Analytical chemistry ,02 engineering and technology ,Mass spectrometry ,01 natural sciences ,deposition ,Ion ,Pulsed laser deposition ,chemistry.chemical_compound ,telecommunications ,[CHIM.ANAL]Chemical Sciences/Analytical chemistry ,0103 physical sciences ,Materials Chemistry ,Thin film ,010302 applied physics ,photonic applications ,[CHIM.MATE]Chemical Sciences/Material chemistry ,021001 nanoscience & nanotechnology ,chalcogenide glasses ,switch ,Amorphous solid ,optical-properties ,chemistry ,thin-films ,Ceramics and Composites ,Time-of-flight mass spectrometry ,0210 nano-technology ,light ,Stoichiometry - Abstract
International audience; Laser Desorption Ionization Time-of-Flight Mass Spectrometry was exploited for the characterization of Ge-As-Se chalcogenide glasses and corresponding thin films fabricated using pulsed laser deposition. Main achievement of the paper is the determination of laser generated clusters' stoichiometry. The clusters observed were As-b(+) (b = 1-3), Se-2(-), binary AsbSe+ (b = 1-3), AsbSec- (b = 1-3, c = 1-4), Ge2Sec- (c = 2-3), As3Se2+, Ge2Asb- (b = 2-3), Ge3Asb- (b = 1-2), Ge3Se4-, As5Sec- (c = 4-5), GeAsSe4-, GeaAsSe5- (a = 1-4), GeAs2Se3-, GeAs3Se2-, Ge2As2Se2-, Ge2AsSec- (c = 6-7), and GeAs3Sec- (c = 5-6) (in positive as well as in negative ion mode). The stoichiometries of identified species are compared with the structural units of the glasses/thin films revealed via Raman scattering spectra analysis. Some species are suggested to be fragments of bulk glass as well as thin films. Described method is useful also for the evaluation of the contamination of chalcogenide glasses or their thin films.
- Published
- 2016
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