Surface Effect of Alumina on the First Electronic Transition of Liquid Water Studied by Far-Ultraviolet Spectroscopy.
Surface Effect of Alumina on the First Electronic Transition of Liquid Water Studied by Far-Ultraviolet Spectroscopy.
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通过远紫外光谱研究氧化铝对液态水第一次电子跃迁的表面效应。
DOI：
10.1021/acs.jpclett.5b00190
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Y. Ozaki
中科院分区：
文献类型：
--
作者：
Takeyoshi Goto;A. Ikehata;Y. Morisawa;Y. Ozaki
利用变角衰减全反射远紫外光谱（VA-ATR-FUV）技术，在140-180 nm（8.86-6.89 eV）波长范围内研究了液态水（H2O和D2 O）在α-Al 2 O3衬底上的第一电子跃迁（<$X射线）。探测光（25-19 nm）的倏逝波的穿透深度的变化直接确定与本体水（距氧化铝表面的距离>2 nm）和界面水（<2 nm）相关的各个FUV光谱。我们发现，界面水的<$X射线带是显着的蓝移和红尾相对于散装水。界面水与体相水的电子态差异主要来自于氧化铝表面对氢键结构和能量的影响。
The first electronic transition (à ← X̃) of liquid water (H2O and D2O) on an α-alumina substrate was studied using variable angle attenuated total reflection far-ultraviolet (VA-ATR-FUV) spectroscopy in the wavelength region 140-180 nm (8.86-6.89 eV). A variation in the penetration depth of the evanescent wave of a probe light (25-19 nm) directly determined individual FUV spectra associated with bulk water (distance from the alumina surface >2 nm) and interfacial water (<2 nm). We found that the à ← X̃ band of the interfacial water was markedly blue-shifted and red-tailed relative to the bulk water. The electronic state difference of the interfacial water from the bulk water mainly arose from the hydrogen-bond structure and energy affected by the alumina surface.
影响因子：
8.6
作者：
Sakuma, H;Otsuki, K;Kurihara, K
通讯作者：
Kurihara, K