Reflection and Absorption Techniques for Optical Characterization of Chemically Assembled Nanomaterials


  • We thank the US Department of Energy for supporting this work. A list of abbreviations and definitions is available online from Wiley InterScience as supporting information or from the authors.


This review discusses recent developments in the areas of fabrication, certain types of optical characterization, and applications of a selected class of chemically assembled nanomaterials, namely i) gold and silver nanoparticles deposited onto optically transparent glass substrates; ii) thiol-functionalized self-assembled monolayers (SAMs); iii) chemically stabilized gold and silver nanoparticles (monolayer protected clusters, MPCs); and iv) MPCs linked to metallic substrates and adsorbates. Six linear optical techniques for the characterization of these materials are discussed: transmission localized surface plasmon resonance spectroscopy, T-LSPR; propagating surface plasmon resonance spectroscopy, P-SPR; polarization-selective Fourier transform infrared reflection absorption spectroscopy, PS-FTIRRAS; polarization-modulation Fourier transform infrared reflection absorption spectroscopy, PM-FTIRRAS; surface-enhanced infrared reflection absorption spectroscopy, SEIRRAS; and infrared ellipsometry. The review focuses particularly on providing a unified treatment of these six optical techniques by using a relatively simple stratified multilayer model.