Orientation Ordering and Chiral Superstructures in Fullerene Monolayer on Cd (0001)

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ID: 114825
2020
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Abstract
The structure of C60 thin films grown on Cd (0001) surface has been investigated from submonolayer to second monolayer regimes with a low-temperature scanning tunneling microscopy (STM). There are different C60 domains with various misorientation angles relative to the lattice directions of Cd (0001). In the (2√3 × 2√3) R30° domain, orientational disorder of the individual C60 molecules with either pentagon, hexagon, or 6:6 bond facing up has been observed. However, orientation ordering appeared in the R26° domain such that all the C60 molecules adopt the same orientation with the 6:6 bond facing up. In particular, complex chiral motifs composed of seven C60 molecules with clockwise or anticlockwise handedness have been observed in the R4° and R8° domains, respectively. Scanning tunneling spectroscopy (STS) measurements reveal a reduced HOMO–LOMO gap of 2.1 eV for the C60 molecules adsorbed on Cd (0001) due to the substrate screening and charge transfer from Cd to C60 molecules.
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shang2020nanomaterialsorientation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yuzhi Shang;Zilong Wang;Daxiao Yang;Yaru Wang;Chaoke Ma;Minlong Tao;Kai Sun;Jiyong Yang;Junzhong Wang;Shang, Yuzhi;Wang, Zilong;Yang, Daxiao;Wang, Yaru;Ma, Chaoke;Tao, Minlong;Sun, Kai;Yang, Jiyong;Wang, Junzhong;
Journal Nanomaterials
Year 2020
DOI
10.3390/nano10071305
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