Raman spectra and temperature-dependent Raman scattering of carbon nanoscrolls

► Carbon nanoscrolls can be obtained from monolayer graphene. ► The Raman signals between carbon nanoscrolls and monolayer graphene are similar, except the ratios between G and 2D peaks' intensities. ► The Raman scattering of the carbon nanoscrolls is dependent on the surrounding temperature. ► The temperature coefficients for the G (∼1580 cm−1) and 2D (∼2700 cm−1) bands are - (1.86 ± 0.06) × 10−2 cm−1/K and - (3.46 ± 0.28) × 10−2 cm−1/K, respectively. ► These investigations indicate that carbon nanoscrolls show similar electronic band structure and different phonon dispersion compared with monolayer graphene.