AVS 52nd International Symposium
    Surface Science Thursday Sessions
       Session SS2-ThM

Invited Paper SS2-ThM7
Contact Formation with a Single Molecule: 1,3-cyclohexadiene on the Si(100) Surface

Thursday, November 3, 2005, 10:20 am, Room 202

Session: Functionalization of Semiconductor Surfaces
Presenter: J.J. Boland, Trinity College Dublin, Ireland
Authors: B. Naydenov, Trinity College Dublin, Ireland
L.C. Teague, Trinity College Dublin, Ireland
P. Ryan, Trinity College Dublin, Ireland
J.J. Boland, Trinity College Dublin, Ireland
Correspondent: Click to Email
We have studied the contact formed between a 1,3-cyclohexadiene (1,3-CHD) molecule on Si(100) and a Pt STM probe tip at 5 K.  DFT studies indicate that the STM images obtained are the result of a specific probe-molecule interaction.   This is confirmed by measurements of local barrier heights acquired at different probe-molecule separations and the associate change in the vibrational spectra measured at each separation.  On this basis, we provide a detailed analysis of the physical and chemical interactions that accompany contact formation in this molecular system.