Extended Data Fig. 9: Thermostability of AMC-300 (a), AMC-400 (b) and AMC-500 samples (c) in air shown by Raman spectroscopy.
From: Disorder-tuned conductivity in amorphous monolayer carbon
The monolayers were transferred onto SiO2/Si substrates and then consecutive Raman measurements were performed by 4 mW of laser (continuous wave, 532 nm). The acquisition time of a single spectrum was 10 s, with the interval duration of 100 s for AMC-300 and no breaks for AMC-400 and AMC-500. We noticed that, with longer laser irradiation, the Raman intensities from the same spot gradually decayed owing to the structural damage by the heating effect. By tracing the evolution of Raman spectra, we found that AMC-300 held the highest thermostability, whereas AMC-400 suffered severely from the radiolysis. The results of the thermostability evaluation are consistent with our atomic-level structure characterizations.
