Chemical imaging by scanning force microscopy


  • We thank R. Kranwctvogcl for support during the preparation of tip and sample.


The chemical imaging of surfaces with high lateral resolution i.e. the chemical identification of the materials which make up the surface was recently reported by Lieber et al. in Science. Here, work carried out partially in parallel using chemically modified SFM tips (see Figure) confirms the power of the technique and emphasizes its use for technical surfaces which normally show little contrast in SFM.

original image