Fig. 4: Verification of the mechanism.
From: Graphene-enabled laser lift-off for ultrathin displays
a UV-Vis absorption spectrum of each graphene layer. b Peel strength of the fabricated PI film for the number of underlying graphene layers. Error bars represent standard deviations obtained from samples (n = 4). The inset shows the experimental setup. c Temperature profiles during the ablation process for the number of graphene layers. The profile results were obtained using the reduced simulation model. d, e Temperature distributions (d) in the vertical direction and (e) at the glass(graphene)–PI interface. The distribution results were obtained using the full-scale simulation model. Insets illustrate the directions for temperature data extraction in the simulation model, and gray dashed lines represent the threshold ablation temperature. The colored regions in (d) indicate the variation in materials along the vertical distance.
