STM of mixed alkylthiol self-assembled monolayers on Au(111)

Hubert Klein (1) , N. Battaglini (2) , B. Bellini (2) , Philippe Dumas (2)

1 CINaM - Centre Interdisciplinaire de Nanoscience de Marseille
2 GPEC - Groupe de Physique des Etats Condensés

Mixed self-assembled monolayers SAMs consisting of n-alkylthiol andror 11-mercapto1-undecanol are produced and investigated Ž. by Scanning Tunnelling Microscopy STM in picoampere regime. Such systems allow the creation of surfaces with tuned chemical properties. We investigate both the qualities of the organic films and their electron transport properties. We evidence a contact regime and measure the decay lengths both in the film and in the tunnelling gap.

Keywords: Alkylthiol; Self-assembled monolayers; Scanning Tunnelling Microscopy

Domains: Physics [physics]; Condensed Matter [cond-mat]; Materials Science [cond-mat.mtrl-sci]

Hubert Klein, N. Battaglini, B. Bellini, Philippe Dumas. STM of mixed alkylthiol self-assembled monolayers on Au(111). Materials Science and Engineering: C, 2002, 19 (1-2), pp.279-283. ⟨10.1016/S0928-4931(01)00399-X⟩. ⟨hal-01770304⟩