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测量了硫系玻璃(Ge_(0.42)S_(0.58))_(100-x)(Sb_(0.4)S_(0.6))_x块样和薄膜的Raman光谱随组成x的变化。 随着x增加,380cm~(-1)处的蜂(x=0时)的中心波数移向低波数方向,这是由于Ge—S键数增加,五种分子团数的比例发生变化所引起的。x=30时,峰的中心波数约为340cm~(-1)。x继续增大,该玻璃系的Raman谱倾向于类似Sb_2S_3的Raman谱。x=45时,170cm~(-1)处的峰(对应于S_2Sb-SbS_2分子团的振动)达到最大。 块样的Raman谱基本上与薄膜的Raman谱相类似,表明组成块样和薄膜的分子团种类和它们间的比例关系大体相同。
The Raman spectra of bulk and thin films of the chalcogenide glass (Ge_ (0.42) S_ (0.58)) _ (100-x) (Sb_ (0.4) S_ (0.6) As x increases, the central wavenumber at 380 cm -1 (x = 0) shifts to the lower wavenumber direction due to the increase in the number of Ge-S bonds and a change in the proportion of the five molecular groups of. When x = 30, the center wave number of the peak is about 340cm -1. x continues to increase, the Raman spectrum of the glass system tends to be similar to the Raman spectrum of Sb 2 S 3. At x = 45, the peak at 170 cm -1 (corresponding to the vibration of the S 2 Sb-SbS 2 cluster) reached the maximum. The bulk Raman spectrum is basically similar to that of the Raman spectrum of the thin film, indicating that the molecular species that make up the bulk and the thin film and the proportionality between them are roughly the same.