Figure 2
From: Simple and effective graphene laser processing for neuron patterning application
Fluorescence images of square patterns on SLG (SiO2/Si substrate) irradiated at increasing fluence.
Fluorescein diacetate (FDA) was used as green fluorescent dye. To obtain fluorescence quenching (revealing the graphene distribution) fluorescein dye dispersed in PVP was spin coated on the sample. SLG ablation and the related loss of quenching effect, occurs partially at 0.10 J/cm2 becoming more homogeneous at 0.12 J/cm2. Type 1 sample was exposed to the laser in ambient atmosphere with no pre-treatment.
