Roman scattering measurement of ( 1 - x ) GeS2-x Ga2S3 system glasses was conducted in order to understand the microstructural change caused by the addition of Ga2S3 . According to the change of Raman spectra with t...Roman scattering measurement of ( 1 - x ) GeS2-x Ga2S3 system glasses was conducted in order to understand the microstructural change caused by the addition of Ga2S3 . According to the change of Raman spectra with the addition of Ga2S3, two main structural transformations were deduced : the gradual enhancement of ethane- like structural units S3 Ge- GeS3 ( 250 cm ^- 1) and S3 Ga- GaS3 (270 cm ^- 1 ) and the appearance of charge imbalanced units [ Ga2 S2 ( S1/2 )4 ]^2- and [Ga( S1/2 )4 ]^- . And this change of structural aspect seems to give as a clue to understanding the cause of the increased rare-earth solubility.展开更多
文摘Roman scattering measurement of ( 1 - x ) GeS2-x Ga2S3 system glasses was conducted in order to understand the microstructural change caused by the addition of Ga2S3 . According to the change of Raman spectra with the addition of Ga2S3, two main structural transformations were deduced : the gradual enhancement of ethane- like structural units S3 Ge- GeS3 ( 250 cm ^- 1) and S3 Ga- GaS3 (270 cm ^- 1 ) and the appearance of charge imbalanced units [ Ga2 S2 ( S1/2 )4 ]^2- and [Ga( S1/2 )4 ]^- . And this change of structural aspect seems to give as a clue to understanding the cause of the increased rare-earth solubility.