Phase transition in ordered porphyrin layers on iodide modified Cu(1 1 1): An EC-STM study (CROSBI ID 133038)
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Hai, N. T. M. ; Gašparović, Blaženka ; Wandelt, Klaus ; Broekmann, Peter
engleski
Phase transition in ordered porphyrin layers on iodide modified Cu(1 1 1): An EC-STM study
The self-assembly of meso-tetra (N-methyl-4-pyridyl) porphyrine tetratosylat (H2TMPyP) on an iodide modified Cu(1 1 1) surface has been studied by means of in situ electrochemical-scanning tunneling microscopy (EC-STM). The I/Cu(1 1 1) surface was found to be a good substrate for the self-assembly of highly ordered layers of porphyrin cations. Furthermore, a reversible structural phase transition within the highly ordered porphyrin layer was observed during variation of the electrode potential, as a consequence of changing electronic properties of the substrate.
self-assembly; porphyrins; solid-liquid interface; copper; scanning tunneling microscopy
International Conference on NANO-Structures Self-Assembling, International Conference on NANO-Structures Self-Assembling Congress Center, Aix-en-Provence, France, 2006
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