EFFECT OF THIN ORGANIC FILMS ON SURFACE PLASMA RESONANCE ON GOLD
EFFECT OF THIN ORGANIC FILMS ON SURFACE PLASMA RESONANCE ON GOLD
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DOI：
10.1016/s0030-4018(97)90032-8
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发表时间：
1977-01-01
影响因子：
2.4
通讯作者：
SWALEN, JD
中科院分区：
文献类型：
--
作者：
GORDON, JG;SWALEN, JD
金上有机单层的光学常数是根据表面等离子体共振的位移计算的。将两到几层有组织的花生酸镉层（每层独立已知厚度为 2.68 nm）沉积在金膜上。最小衰减总反射率的角度变化约 0.5 度，对应于每个附加单层约 900 cm-1 的 Δksp。由于 ATR 方法具有较大的角位移和简单性，因此该技术似乎是确定光学常数和监测金属上薄（纳米级）界面层变化的简单而准确的方法。
Optical constants of organic monolayers on gold are calculated from shifts in the surface plasmon resonance. Two to several organized layers of cadmium arachidate (each known independently to be 2.68 nm thick) were deposited onto gold films. The angle of minimum attenuated total reflectance changed by about 0.5 degree, corresponding to a Δkspof approximately 900 cm-1for each additional monolayer. Because of the large angular shifts and the simplicity of the ATR method, this technique appears to be an easy and accurate way to determine optical constants and monitor changes in thin (order of nm) interfacial layers on metals.