ELASTIC, ADHESIVE, AND CHARGE TRANSPORT PROPERTIES OF METHYL-TERMINATED ALKYLTHIOL SELF-ASSEMBLED MONOLAYERS ON GOLD SURFACES

摘要

In summary, the mechanical and electrical properties of alkylthiol SAMs on gold surfaces were examined with AFM and correlated with surface structure via NEXAFS. As n decreased from 18 to 5, there was a change in the molecular phase from crystalline to amorphous (R_1→0) and loss of surface coverage, and as a result, w increased from 82.8 mJ m~(-2) to 168.3 mJ m~(-2), E_(FILM) decreased from 1.0 GPa to 0.15 GPa, and Φ_0-E_f decreased from 2.4 eV to 2.1 eV.