Adsorption and thermal stability of organic films on surfaces monitored by Direct Recoil Spectroscopy

L. SALAZAR-ALARCÓN, L.N. SERKOVIC LOLI, L.J. CRISTINA,, J.E. GAYONE, E.A. SÁNCHEZ, O. GRIZZI; L. CHEN, S. SHEN, V.A. ESAULOV

Paris

Workshop; High Resolution Depth Profiling 6; 2011

The adsorption and self-assembly of organic molecules on a variety of substrates such asnoble metals, transition metals with incomplete d-shells and semiconductors, is a subject ofgreat activity in surface science and applied chemistry due to the possibility of using them asbuilding blocks with specific electronic properties, or linkers between metallic contacts toproduced optoelectronic devices. :- conjugated or aromatic organic molecules are highlyattractive building blocks as their electronic properties, the molecular arrangement and thefunctionality of these structures can be custom tailored through the rich chemistry of organicsystems.In this work we report results on the study of the adsorption process and of the thermalstability of a EP-PTCDI (N,N’-bis(1-ethylpropyl)-perylene-3,4,9,10-tetracarboxdiimide –C34H10O4N2) and BDMT (1, 4-benzene dimethanetiol – SH-CH2-C6H4-CH2-SH) ultrathinfilms grown on Au and Ag, by means of Direct Recoil Spectroscopy with time-of-flightmass analysis (TOF-DRS).