Fig. 5
From: Photothermal Effect of Modulating Laser Irradiation on the Thermal Diffusivity of Al2O3 Nanofluids
The TEM images and the relative size histograms of the Al2O3-NPs a before (16.4 ± 7.8 nm) and after laser irradiation, at b 10 min (14.2 ± 5.4 nm), and at c 30 min (12.03 ± 3.5 nm), respectively