Research / 2020 / Article / Fig 1

Research Article

Polymorphism-Dependent Dynamic Ultralong Organic Phosphorescence

Figure 1

The structure of PyCz and two kinds of crystal of PyCz with different photoactivation UOP speed. (a) Molecular structure of PyCz with two kinds of molecular packing mode. Insets: the fluorescence microscopy images of PyCz-B and PyCz-N with the scale bar of 200 μm. (b) The afterglow photos of PyCz-B and PyCz-N at different photoactivation time with a handheld 365 nm UV lamp (40 mW/cm2) under ambient conditions, and the dashed circles are used to distinguish the samples with low afterglow intensity.