フーリエ変換赤外分光法による有機化合物の発光スペクトル強度の測定

概要

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The intensity of emission spectrum was studied by a Fourier transform infrared spectrometry. The sample was polyvinylacetate (PVAc) on aluminum plate and the sample temperature was 80±0.1°C. 1) The emission spectrum agreed with the transmission spectrum under 2000 cm-1 region. 2) The relations between sample thickness and band intensities were discussed about 1374, 1241, 1124, 1022 and 947 cm-1, bands. The linear correlations were found under 80 nm thickness. 3) Observation angle dependency of 1241 cm-1 band intensity was examined. The intensity at the angle of 60° was twice as large as the data at 0°. It was possible to detect the thickness of 5 nm of PVAc film at 60° angle (S/N=2). 4) The relation between the molar extinction coeffcient and intensity was studied on each band. The linear correlation between them was found except a very strong band (ε=500). This relation indicates the possibility to estimate the quantity of the material on the surface without any calibration.
社団法人日本分光学会の論文