Multiple transmission-reflection infrared spectroscopy and silicon surface organic chemistry for biological applications

Xiao, Shou-Jun Multiple transmission-reflection infrared spectroscopy and silicon surface organic chemistry for biological applications. In: Predavanje gosta (30 September 2015 - 30 September 2015) Institut Ruđer Bošković, Zagreb, Hrvatska. (Unpublished)

Microsoft PowerPoint - Published Version - presentation Download (9MB)

Abstract

A new infrared spectroscopic measurement involving multiple transmissions and reflections for molecular monolayers adsorbed on silicon surfaces has been established. Compared to the well-known multiple internal reflection (MIR) method, the distinctive advantage of multiple transmission-reflection infrared spectroscopy (MTR-IR) is the convenient measurement using standard silicon wafers as samples, while in the MIR setup special fabrication of geometric shapes such as 45° bevel cuts on an attenuated total reflection silicon crystal is needed. Both p- and s-polarized spectra can be obtained reproducibly with the same order of sensitivity as by the MIR spectroscopy. Optimal conditions for spectral acquisition have been obtained from theoretical calculations. The ability of this methodology to gather high quality infrared spectra of adsorbed monolayers is demonstrated and the analysis of the surface packing and molecular orientation is discussed.

Item Type:	Unpublished conference/workshop items or lecture materials
Uncontrolled Keywords:	MTR-IR Spectroscopy; Measurement Methods; Silicon; GMBR; Infrared Measurement; Silicon Surface
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Chemistry
Divisions:	UNSPECIFIED
Depositing User:	Kristina Ciglar
Date Deposited:	16 Feb 2016 13:30
URI:	http://fulir.irb.hr/id/eprint/2487

Actions (login required)

View Item