INFRARED-SPECTRA OF MONOLAYERS ADSORBED ON MICA

被引：22

作者：

GUZONAS, DA ^{[1
]}

HAIR, ML ^{[1
]}

TRIPP, CP ^{[1
]}

机构：

[1] XEROX RES CTR CANADA LTD,2660 SPEAKMAN DR,MISSISSAUGA L5K 2L1,ONTARIO,CANADA

来源：

APPLIED SPECTROSCOPY | 1990年 / 44卷 / 02期

关键词：

D O I：

10.1366/0003702904085543

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The infrared spectrum of an adsorbed monolayer of octadecyltrichlorosilane (OTS) on mica has been recorded in the transmission mode. The problem of interference fringes has been reduced by cleaving mica to thicknesses of approximately 1 μm so that the period of the fringes is much greater than the bandwidth of the bands due to adsorbed molecules. In addition, mica of this thickness has the added advantage of being transparent below 1200 cm-1, which allows observation of bands arising from adsorbed species in this spectral region. An improvement in signal-to-noise ratio can be obtained by placing the thin mica sheets in series. We have also demonstrated that Attenuated Total Reflection (ATR) can be used to measure spectra of material deposited on the exposed surface of a thin mica sheet in contact with the ATR crystal.

引用

页码：290 / 293

页数：4

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