Table 2 Binding energy (\(\hbox {E}_b\)), Fermi energy (\(\hbox {E}_F\)), and bandgap energy (\(\hbox {E}_g\)) of considered CGNRs.

From: Cadmium passivation induced negative differential resistance in cove edge graphene nanoribbon device

Width (\(\hbox {N}_Z\))

Structure

\(\hbox {E}_b\) (eV)

\(\hbox {E}_F\) (eV)

\(\hbox {E}_g\) (eV)

8

H-CGNR-H

− 5.60

− 5.00

0.14

Cd-CGNR-H

− 3.38

− 4.13

M

Cd-CGNR-Cd

− 1.15

− 3.89

M

6

H-CGNR-H

− 5.63

− 4.68

0.32

Cd-CGNR-H

− 3.41

− 4.15

M

Cd-CGNR-Cd

− 1.17

− 3.85

M

4

H-CGNR-H

− 5.65

− 4.97

0.71

Cd-CGNR-H

− 3.43

− 4.10

M

Cd-CGNR-Cd

− 1.19

− 3.71

M

  1. *Here, M represents metal