Figure 3From: Tuning photoluminescence of organic rubrene nanoparticles through a hydrothermal process SEM images. The filtered-up and filtered-down (a) pristine, (b) HT-110, (c) HT-150, and (d) HT-180 rubrene NPs. (e) Diameters of the filtered-up and filtered-down pristine and HT rubrene NPs as a function of hydrothermal temperature.Back to article page