Abstract Nanostructured molybdenum oxysulfide layers were prepared via MoO3 evaporation in H2S at 800 °C. Transmission and scanning electron microscopy (SEM, TEM) and UV/Vis spectroscopy revealed a nano- and microstructure nature of the layers. Despite the significant oxygen content (up to 30 at. %), the qualitative estimation of some analytical measurements (UV/Vis, Raman and X-ray photoelectron spectroscopy) showed a close link to MoS2 structure. As the elemental ratio Mo:(O + S) was ≈2, most of the oxygen atoms substituted sulphur in MoS2 structure. On the other hand, luminescence spectra addressed defects and a band gap structure similar to MoO3.

中文翻译：

---

MoO3 在 H2S 中蒸发制备的纳米结构氧硫化钼沉积物的光谱特性

摘要 通过在 800 °C 下在 H2S 中蒸发 MoO3 制备纳米结构的氧硫化钼层。透射和扫描电子显微镜（SEM、TEM）和紫外/可见光谱揭示了这些层的纳米和微结构特性。尽管氧含量很高（高达 30 原子百分比），但一些分析测量（UV/Vis、拉曼和 X 射线光电子能谱）的定性估计显示与 MoS2 结构密切相关。由于元素比 Mo:(O + S) ≈2，因此大部分氧原子取代了 MoS2 结构中的硫。另一方面，发光光谱解决了缺陷和类似于 MoO3 的带隙结构。