Effect of the environment on the electrical conductance of the single benzene-1,4-diamine molecule junction

• Shigeto Nakashima,
• Yuuta Takahashi and
• Manabu Kiguchi

Beilstein J. Nanotechnol. 2011, 2, 755–759, doi:10.3762/bjnano.2.83

• conductance of a single benzene-1,4-diamine (BDA) molecule bridging Au electrodes, using the scanning tunneling microscope (STM). The conductance of the single BDA molecule junction decreased upon a change in the environment from tetraglyme, to mesitylene, to water, and finally to N2 gas, while the spread in

• coverage of the BDA molecule at metal electrodes and atomic and molecular motion of the single-molecule junction. Keywords: benzene-1,4-diamine; electric conductance; single-molecule junction; solvent; Introduction The electron transport properties through a single molecule bridging metal electrodes

• -molecule junction. In the present study, we investigated the effect of the environment on the electron-transport properties of the single benzene-1,4-diamine (BDA) molecule junction in water, tetraglyme, and mesitylene, with each medium having different viscosity and dipole moment. Experimental The single