March 3, 2026Faraday Discussions0 citationsOpen Access

Mapping In-plane Orientational Order and Correlation Lengths in Molecular Films using Azimuthal-Scanning Vibrational Sum-Frequency Generation Microscopy†

NMNasim MirzajaniFritz Haber Institute of the Max Planck Society BJBen JohnFritz Haber Institute of the Max Planck Society MWMartin WolfFritz Haber Institute of the Max Planck Society

Key Points

Highly ordered anisotropic packing structures dictate macroscopic properties and behavior.
Correlation lengths measure the extent of order within molecular films at various orientations.
Chemical analysis utilizes azimuthal-scanning vibrational sum-frequency generation microscopy for detailed mapping.
Understanding these molecular structures may enable advancements in material design and interface engineering.

Abstract

Self-assembled molecular films are omnipresent in nature, where their highly ordered anisotropic packing structures play a crucial role in governing the macroscopic properties and functional behavior of interfaces. Beyond their...

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