离子束分析关联光致变色稀土氧化物的化学组成和光学性质
Correlating chemical composition and optical properties of photochromic rare-earth oxy-hydrides using ion beam analysis
摘要：
我们将反应磁控溅射法制备的稀土氢氧化物薄膜（YHO，NdHO，GdHO和DyHO）的光致变色响应与化学成分联系起来。通过多方法离子束分析方法提取样品组合物的深度分布。薄膜的总面密度是从卢瑟福背散射光谱推导出来的，而符合飞行时间/能量弹性反冲检测分析提供了膜成分的深度分布。另外，分别从核反应分析和弹性背散射光谱法中提取轻物质（即氢和氧）浓度的高分辨率深度分布。光致变色响应的薄膜进行测量之前和之后的照明光透射光谱。我们报告了YHO、NdHO、GdHO和DyHO对于由式$REH_{2-δ}O_δ$描述的化学组合物在$0.45 {<} δ {<} 1.5$范围内的光致变色性质。
英文摘要：
We relate the photochromic response of rare-earth oxy-hydride thin films (YHO, NdHO, GdHO and DyHO) synthesized by reactive magnetron sputtering to chemical composition. Depth profiles of the sample composition are extracted by a multi-method ion beam analysis approach. The total areal density of the thin films is deduced from Rutherford Backscattering Spectrometry while coincidence Time-of-Flight/Energy Elastic Recoil Detection Analysis provides depth-profiles of the film constituents. High-resolution depth profiles of the concentration of light species, i.e. hydrogen and oxygen, are additionally extracted from Nuclear Reaction Analysis and Elastic Backscattering Spectrometry, respectively. The photochromic response of the films is measured by optical transmission spectroscopy before and after illumination. We report photochromic properties for YHO, NdHO, GdHO and DyHO for chemical compositions described by the formula $REH_{2-δ}O_δ$ in the range of $0.45 {<} δ {<} 1.5$.
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