Temperature-Dependent Self-Assemblies of C60 on (1 × 2)-Pt(110): A STM/DFT Investigation
作者： T. Orzali , D. Forrer , M. Sambi , A. Vittadini , M. Casarin
DOI: 10.1021/JP076024A
关键词:
摘要: Thermal self-assembly of C60 on (1 × 2)-Pt(110) following room-temperature deposition has been studied by means scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), and density functional theory (DFT) calculations. Two distinct chemisorption phases have identified characterized as a function the annealing temperature. After thermal treatment at 700 K, islands quasi-hexagonal lattice form. These are highest surface so far reported for two-dimensional surface-supported fullerene phase (the area per molecule is 87.0 A2), with intermolecular nearest-neighbor distances equal to 9.6 ± 0.1 A. Embedded nanowires dumbbell dimers (with an distance 9.2 A) occasionally nucleate within this high-density “molecular zip” mechanism. Highly site selective driven particularly strong overlayer−substrate bonding proposed be responsible for...
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