| AVS 63rd International Symposium & Exhibition | |
| Scanning Probe Microscopy Focus Topic | Tuesday Sessions |
| Session SP-TuP |
| Session: | Scanning Probe Microscopy Poster Session |
| Presenter: | Nan Jiang, University of Illinois at Chicago |
| Authors: | Z. Porach, University of Illinois at Chicago P. Whiteman, University of Illinois at Chicago N. Chiang, Northwestern University N. Jiang, University of Illinois at Chicago |
| Correspondent: | Click to Email |
During the last few years, the study of ultrahigh vacuum tip-enhanced Raman spectroscopy (UHV-TERS) has been raised to an unprecedented level. While scanning probe microscopy (SPM) is commonly used to study individual molecules, its information content can be severely compromised by surface diffusion, irregular packing, or three-dimensional adsorbate geometry. Here we demonstrate the simultaneous chemical and structural analysis of single molecules on the solid surface by UHV-TERS. In situ lenses can increase the collection efficiency with large numerical aperture. The strongly enhanced Raman signal makes the detection of single molecules possible. The adsorption configurations are able to be determined at unprecedented spatial resolution (<1nm).