4.分析案例
样品信息和分析需求:氮化镓样品中Ga和N化学态分析。
拟合元素:Ga、N。
(1)精细图谱分峰拟合(图4.141~图4.143)

图4.141 Ga3 d分峰

图4.142 Ga2 p分峰

图4.143 N1s分峰
(2)分峰拟合后化学态归属(表4.94)(https://www.daowen.com)
表4.94 分峰拟合后化学态归属

(3)解析说明
判断Ga的化学态需要同时扫描Ga3d和Ga2p,此案例中,Ga3d与O2s和In4d都有重合,而N1s与Ga LMM也重合比较严重,如果要结合定量结果判断化学态,必须通过分峰拟合后扣除Ga LMM的干扰,才能准确定量Ga与N的比例关系。
推荐资料
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