Solvated electrons at the water-air interface: surface versus bulk signal in low kinetic energy photoelectron spectroscopy
Solvated electrons at the water-air interface: surface versus bulk signal in low kinetic energy photoelectron spectroscopy
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DOI：
10.1039/c2cp23305c
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发表时间：
2012-01-01
影响因子：
3.3
通讯作者：
Luebcke, Andrea
中科院分区：
文献类型：
--
作者：
Buchner, Franziska;Schultz, Thomas;Luebcke, Andrea
时间分辨光电子能谱在低动能（小于或接近5 eV）适用于稀碘化物溶液具有不同的表面和散装贡献。结果表明，一个明显的表面敏感性。分配给溶剂化电子附近的液体表面的信号衰减迅速的亚ps的时间尺度。与文献相反，未观察到结合能为1.6 eV的长寿命表面溶剂化电子。
Time-resolved photoelectron spectroscopy at low kinetic energies (less than or similar to 5 eV) is applied to dilute iodide solutions with different surface and bulk contributions. The results indicate a pronounced surface sensitivity. Signals assigned to solvated electrons near the liquid surface decay rapidly on a sub-ps timescale. In contrast to the literature, a long-lived surface solvated electron at 1.6 eV binding energy is not observed.