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Electrode modification by electron-induced patterning of aromatic self-assembled monolayers

2001; American Institute of Physics; Volume: 79; Issue: 20 Linguagem: Inglês

10.1063/1.1415771

1520-8842

Thomas Felgenhauer, Changfeng Yan, S. Geyer, H. Rong, Armin Gölzhäuser, Manfred Buck,

Gold and Silver Nanoparticles Synthesis and Applications

Self-assembled monolayers of ω-(4′-methyl-biphenyl-4-yl)-dodecyl thiol [CH3–C6H4-C6H4–(CH2)12–SH,BP12] on gold were patterned via exposure to 300 eV electrons. Subsequent copper deposition in an electrochemical cell revealed behavior opposite to that of electron beam patterned monolayers of alkanethiols. Whereas alkanethiols act as a positive resist and lead to copper deposition only on irradiated parts, the biphenyl based thiol acts as a negative resist. At the irradiated areas the layer exhibits blocking behavior and copper deposition is observed only on the nonirradiated parts.