Table 1 Calculated adsorption energies \(E_{ads}\) (eV/atom), \(C{-}C\) distance (Å), and calculated work functions \(\varphi\) (eV) for clean Cu, C\(_2\)/Cu at 0.50 and 1.00 ML coverages, and for the graphitic-like structure.

From: Importance of surface morphology on secondary electron emission: a case study of Cu covered with carbon, carbon pairs, or graphitic-like layers

Material

\(E_{ads}\) (eV/atom)

\(C{-}C\)

Distance (Å)

\(\varphi _{cal}\) (eV)

Cu

n/a

n/a

4.40 (4.4822)

\(C_2/Cu\) (0.50 ML)

− 4.74

1.30

4.75

\(C_2/Cu\) (1.00 ML)

− 4.50

1.32

4.91

Graphite

− 6.56

1.37–1.52

7.63