Open Access

Table 4

The possible functional groups for O and N heteroatoms incorporated into the aliphatic, olefinic and aromatic components of aliphatic-rich, a-C:H, and aromatic-rich, a-C, phases in (hydrogenated) amorphous carbon, a-C(:H), materials.

Element group
N ≥C−N < Aromatic
N >C=N– Imine
N >C=NH Imine
N –NH2 Amine

O Aromatic ketone
O >C=O Ketone
O Ether
O Epoxide
O –OH Alcohol

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