Patent
US 10,355,348Raman spectrum of SOCl₂ doped graphene shown in FIG. 5; red-shift of G and 2D peaks and increase of ratio between their intensities demonstrates hole-doping effect; absence of D peak attests to absence of C-sp2 lattice conjugation breaking.
Optical transmittance of chemically-doped graphene decreases as layers are added from 1 to 5 layers; no differences found between pristine and chemically-doped multilayer graphene transmittance values.
Sheet resistance vs. number of layers (1 to 5) shown for pristine CVD graphene and SOCl₂ doped graphene. Pristine CVD graphene sheet resistance monotonically decreases and plateaus to values larger than 100 Ω/sq.
Analytical model lines for reflectance, transmittance and absorbance compared with experimental values when sheet resistance Rs is varied in the range 10 Ω/sq – 2 kΩ/sq.
pristine CVD graphene multilayer plateau value | ≥ 100 | CVD graphene |
Duration | 10–200 minutes | — |
Raman spectrum of SOCl₂ doped graphene shown in FIG. 5; red-shift of G and 2D peaks and increase of ratio between their intensities demonstrates hole-doping effect; absence of D peak attests to absence of C-sp2 lattice conjugation breaking.
Optical transmittance of chemically-doped graphene decreases as layers are added from 1 to 5 layers; no differences found between pristine and chemically-doped multilayer graphene transmittance values.
Sheet resistance vs. number of layers (1 to 5) shown for pristine CVD graphene and SOCl₂ doped graphene. Pristine CVD graphene sheet resistance monotonically decreases and plateaus to values larger than 100 Ω/sq.
Analytical model lines for reflectance, transmittance and absorbance compared with experimental values when sheet resistance Rs is varied in the range 10 Ω/sq – 2 kΩ/sq.
pristine CVD graphene multilayer plateau value | ≥ 100 | CVD graphene |
Duration | 10–200 minutes | — |
Raman spectrum of SOCl₂ doped graphene shown in FIG. 5; red-shift of G and 2D peaks and increase of ratio between their intensities demonstrates hole-doping effect; absence of D peak attests to absence of C-sp2 lattice conjugation breaking.
Optical transmittance of chemically-doped graphene decreases as layers are added from 1 to 5 layers; no differences found between pristine and chemically-doped multilayer graphene transmittance values.
Sheet resistance vs. number of layers (1 to 5) shown for pristine CVD graphene and SOCl₂ doped graphene. Pristine CVD graphene sheet resistance monotonically decreases and plateaus to values larger than 100 Ω/sq.
Analytical model lines for reflectance, transmittance and absorbance compared with experimental values when sheet resistance Rs is varied in the range 10 Ω/sq – 2 kΩ/sq.
pristine CVD graphene multilayer plateau value | ≥ 100 | CVD graphene |
Duration | 10–200 minutes | — |
Raman spectrum of SOCl₂ doped graphene shown in FIG. 5; red-shift of G and 2D peaks and increase of ratio between their intensities demonstrates hole-doping effect; absence of D peak attests to absence of C-sp2 lattice conjugation breaking.
Optical transmittance of chemically-doped graphene decreases as layers are added from 1 to 5 layers; no differences found between pristine and chemically-doped multilayer graphene transmittance values.
Sheet resistance vs. number of layers (1 to 5) shown for pristine CVD graphene and SOCl₂ doped graphene. Pristine CVD graphene sheet resistance monotonically decreases and plateaus to values larger than 100 Ω/sq.
Analytical model lines for reflectance, transmittance and absorbance compared with experimental values when sheet resistance Rs is varied in the range 10 Ω/sq – 2 kΩ/sq.
pristine CVD graphene multilayer plateau value | ≥ 100 | CVD graphene |
Duration | 10–200 minutes | — |