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. 2022 Feb 11;14(4):704. doi: 10.3390/polym14040704

Figure 3.

Figure 3

Electronic band structure of (a) pristine graphene (3 × 3) and (b) PPy on graphene at B site and 60° orientation. Energies are relative to the Fermi level. Right panels show the density of states (DOS) of (a,b). In (b) the PDOS, the projected density of states on the PPy heavy atoms are shown for the s-orbitals in blue for C and grey for N in the first panel, while the p-orbitals are depicted in the central panel in red for C and grey for N. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.) Electronic band structures of PPy confined between two graphene layers separated at different distances: (c) 8 Å, (d) 11 Å, (e) 14 Å. Right-most panels show the corresponding density of states. Energies are relative to the Fermi level. Reproduced with permission from [50]. Copyright 2018, Elsevier Science Ltd.