Pressure-optical studies of GeS2glasses and crystals: Implications for network topology

Crystallization kinetics of glassy GeS2

“…It is clear that glassy Gr crystallizes to ~t-GeS2. This conclusions is in agreement with the proposed structure of glassy GeS2 [4] and with the thermodynamic stability of ~t-GeS 2 above 793 K [18]. …”

“…Whilethe structure and optical properties of glassy GeS 2 have received great attention [3][4][5], the crystallization of this material has been studied only in some papers. It has been shown that the nominal purity of the sulphur used for the synthesis of GeS 2 has a significant influence on the crystallization behaviour of glassy GeS2 [6].…”

Physical properties of aGeS2glass using approximateab initiomolecular dynamics

“…Amongst the chalcogenide glasses, glassy germanium disulfide (g-GeS 2 ) has been heavily studied for many years [1] and is still the subject of recent experimental investigations [2,3] because of its interesting physical properties. Chalcogenide materials can be used as sensitive media for optical recording, as light guides, as high-resolution inorganic photoresistors or anti reflection coatings [4].…”

Optical Properties of the Amorphous Semiconductor (GeS 2 ) 1—x (Bi 2 S 3 ) x System under High Pressure

“…As known from system, c H is also experimentally proven to be larger than unity. Weinstein and coworkers [14,15] discussed the correlation between network dimensionality and photoelastic response by using the plots of c H versus 2 E o for a variety of crystalline and non-crystalline semiconductors. In the present study, the plots of c H versus 2 E o for the (GeS 2 ) 1Àx (Bi 2 S 3 ) x system indicate that the network structure changes from the twodimensional (a-GeS 2 ) to a lower-dimensional one with increasing x since c H increases with the addition of Bi 2 S 3 to GeS 2 .…”