Figure 4: Microscopic images of the BL films with various weight ratios.
From: All-solution processed polymer light-emitting diode displays
The weight ratios of EP:PFNR2 are (a) 10:0, (b) 10:0.05, (c) 10:0.1, (d) 10:0.2, (e) 10:0.3, (f) 10:0.4, (g) 10:1 and (h) 10:2. Scale bars, 10 μm.
