High-Resolution Chemical Mapping of Surface Bound Functional Groups with Tapping-Mode Scanning Force Microscopy

摘要

In conclusion, we have shown that phase contrast TM-SFM can produce chemical maps of surfaces based on differences in tip-sample adhesion without significant convolution of topog- raphy. We caution, however, that our samples were designed to test the chemical sensitivity of TM-SFM. More complex surfaces will likely exhibit a combination of mechanical and chemical differences which will complicate interpretation of phase images.