Table 1
Adopted nanoparticle model and exciton parameters and the calculated values.
| Structure | ∊ [assumed value] |  |
Eex,0 (eV) | rex (nm) | δad (nm) | Eg (eV) |
|---|---|---|---|---|---|---|
| nanodiamond | 5.5-10 [8.5] | 0.1 | 0.01 | 8.5 | 0.044 | 5.5 + (3.76/a2) |
| a-C(:H) | 4-8 [6] | 0.07 | 0.1 | 11 | 0.062-0.018 | (1/a) − 0.2 |
| graphite | 12.5 | 0.1 | 0.004 | 13 | 0.241 | 0 |
Notes. ∊ is the dielectric constant. Eex,0 and rex are the Wannier-Mott exciton ground state energy and radius, respectively. δad is the particle radius discretisation, which is size-dependent for the a-C(:H), shown for radii of 0.4-4 nm. In the Band gap, Eg, expressions the radius, a, is in nanometres.
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