铜的价态光电子能谱和X光引发的Auger谱分析

VALENCES ANALYSIS OF CUPPER BY XPS AND X-RAY INDUCED AUGER SPECTROSCOPY

在合金或化合物中，准确地确定铜的价态（Ｃｕ０、Ｃｕ＋、Ｃｕ２＋和Ｃｕ３＋）是很复杂的。采用Ｘ光电子能谱学中的峰位确认法、伴线指纹法、Ａｕｇｅｒ参数法是十分方便的。本文报道了有关，ＣｕＬ３Ｍ４５Ｍ４５电子结合能（ｅＶ）和动能（ｅＶ）标量的变化，讨论了标准样品金属铜、Ｃｕ２Ｏ、ＣｕＣｌ、ＣｕＯ、ＣｕＣｌ２及超导样品ＹＢａ２Ｃｕ３Ｏ７中铜的价态简捷鉴别法。

The Cu valences in metal and in monovalent,divalent copper oxides and trivalent high To superconductor have been determined from XPS core level spectroscopy and X--ray induced Auger spectroscopy.These studies show that the Cu,peak evaluation,the CuL,MMAuger signal, the shake--up peak and FWHM evaluation may be used to identify exactly the valences of Cu0,Cu+,Cu2+and Cu3+.