Influence of NaX (X=I or Cl) additions on GeS2-​Ga2S3 based glasses

Antoine Brehault (1) , Solenn Cozic (1) , Rémi Boidin (2) , Laurent Calvez (1) , Eugène Bychkov (3) , Pascal Masselin (3) , Xianghua Zhang (1) , David Le Coq (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 Department of Graphic Arts and Photophysics [University of Pardubice]
3 LPCA - Laboratoire de Physico-Chimie de l'Atmosphère

Chalcogenide glasses in the pseudo-​ternary system NaX-​GeS2-​Ga2S3 (X=Cl or I) were synthesized. Different series were investigated in order to highlight the influence of the sodium halide addn. on two different host glasses (GeS2)​80(Ga2S3)​20 and (GeS2)​72(Ga2S3)​28. Macroscopic properties including d. and characteristic temps., such as glass transition temps. Tg and crystn. temp. Tx, were detd. for a max. molar content of NaX equal to 15​%. The evolution of the optical band-​gap and the chem. stability following the compn. were also studied. Cond. measurements were also performed and compared to other Li-​based GeS2-​Ga2S3 glasses. The results were discussed taking into account the cation and anion nature and also the glass packing d.

Domaines: Matériaux

Antoine Brehault, Solenn Cozic, Rémi Boidin, Laurent Calvez, Eugène Bychkov, et al.. Influence of NaX (X=I or Cl) additions on GeS2-​Ga2S3 based glasses. Journal of Solid State Chemistry, 2014, 220, pp.238-244. ⟨10.1016/j.jssc.2014.09.005⟩. ⟨hal-01069227⟩