期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 297, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2021.122062
关键词
Chalcogenide glasses; Structure; ss-NMR spectroscopy; Vibrational spectroscopies; DFT modelling
资金
- l'Agence Nationale de la Recherche [ANR-14-CE07-0013-03]
- IDEX Bordeaux [ANR-10-IDEX-03-03]
- CNRS project EMERGENCE@INC2019
- Region Aquitaine
- FEDER
- Agence Nationale de la Recherche (ANR) [ANR-14-CE07-0013] Funding Source: Agence Nationale de la Recherche (ANR)
The study on the Ge-Te-Se glassy system utilizes multi-techniques such as solid-state NMR, Raman and infrared spectroscopies, and DFT calculations to provide insights into its structural organization and interconnections, with a focus on mixed structural units. This experimental/theoretical approach is applied to both selenium and tellurium rich parts of the glassy system.
The glassy ternary system Ge-Te-Se is currently receiving an increased attention due to its extended range of transmission in the infrared opening the way to various potential applications in photonics. In this study, a multi-techniques approach combining solid-state NMR, Raman and infrared spectroscopies and DFT calculations provides insight into the organization of the GeSe4-GeTe4 glassy network and allows to clarify a whole structural description of the glassy system. A particular attention is devoted to the presence of mixed GeTe8-xSex structural units and to the type of interconnections forming the glass networks. Such experimental/theoretical approach is provided both for the selenium and the tellurium rich part of the glassy system.
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