Fig. 10
The conductivity of a-CH and a-C materials (a-C:H – black lines with data points, as per Fig. 33 of Robertson (1986); red lines – fits to these a-C:H data using Eq. (29); green lines – fits for a-C, using the Doyama et al. 2001, activation energies) compared to those predicted for the eRCN a-C:H/a-C (short-dashed blue) and DG a-C models (long-dashed blue) by Eq. (29).
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