An investigation was carried out on perovskite-based derivatives of CaV_1-xMo_xO_3-δ using X-ray Photoelectron Spectroscopy (XPS). According to the XRD pattern, the area of homogeneity covers the region from x = 0 to x = 0.6. Wide XPS-peaks of Ca, V, Mo and O are observed, signalling that elements are presented in multiple states. A model for explaining the large chemical shifts of XPS peaks due to different charging effects on different parts of the sample surface is proposed.

中文翻译：

---

CaV _1-x Mo _x O3 _-δ的X射线光电子能谱研究

使用X射线光电子能谱（XPS）对CaV _1-x Mo _x O3 _-δ的钙钛矿基衍生物进行了研究。根据XRD模式，均匀性区域覆盖从x = 0到x = 0.6的区域。观察到Ca，V，Mo和O的XPS峰很宽，表明元素以多种状态存在。提出了一个模型，用于解释由于样品表面不同部分上带电效应不同而引起的XPS峰的大化学位移。