2D Material Characterization Using Photothermal AFM-IR and s-SNOM

Learn about two complementary nanoscale IR spectroscopy and imaging techniques, photothermal AFM-IR and s-SNOM.

Explore applications of photothermal AFM-IR and s-SNOM in 2D materials

In this webinar, speakers distinguish between photothermal AFM-IR and s-SNOM, presenting examples for how each can be applied in 2D materials research to gain valuable and unique insights. 

Webinar Summary

This webinar addresses the distinction between photothermal AFM-IR and s-SNOM, both of which are nanoscale IR spectroscopic techniques. Along with clarifying the distinction, the presenters demonstrate the broad 2D materials applications for both AFM-IR and s-SNOM.

Physical phenomena such as surface plasmon polaritons and surface phonon polaritons in 2D materials open new opportunities for novel photonic devices through a non-invasive near-field light-matter interaction. s-SNOM provides a unique way to selectively excite and locally detect electronic and vibrational resonances in real space. AFM-IR allows for high-resolution spatial mapping of impurities and microstructural homogeneity via the detection of photothermal expansion with an AFM tip. 

AFM-IR and s-SNOM are complementary techniques that can be used in a variety of ways to uniquely characterize 2D materials, providing insight into their structure-property relationships, coupling behavior, and more. 



Find out more information about Bruker's solutions for nanoIR Spectroscopy:


Cassandra Phillips, Ph.D.
Application Scientist, Bruker

Cassandra did her Ph.D. at the University of Toronto exploring the photophysics of boron nitride nanotubes using scattering scanning nearfield optical microscopy (s-SNOM) and computational models. She has been working at Bruker Nano Surfaces and Metrology since September 2019 as an Applications Scientist focusing on nanoscale IR spectro-microscopy and other correlated imaging techniques realized with atomic force microscopy.

Dr. Anirban Roy

Senior Applications Scientist

Dr. Honghua Yang

Staff Engineer

Dr. Qichi Hu

Senior Applications Scientist