Perylene performance enhancers

A doped device structure was fabricated with a configuration of ITO/ PEDOT PSS/NPB (40nm)/NPB perylene (40nm)/NPB (40nm)/Ca/Al, where perylene was doped at 10% concentration by volume. The JVL characteristics of the perylene-doped NPB device are shown as the open symbols in Figure 3.26. Detailed performances of the undoped and perylene-doped NPB devices are summarized in Table 3.6. Compared to the undoped device, the current efficiency of perylene-doped device was enhanced seven times to about 0.7 cd/A at SOmA/cm, and the maximum luminance also increased to... 

The linewidth is even smaller for Per2PF6-2/3THF, where AH 17 mG [37]. In this system Overhauser effect experiments were performed [47] at room temperature in an apparatus combining the X-band EPR spectrometer with an NMR pulsed spectrometer where the enhancement of the fast induced decay of H and F nuclei under saturation conditions of the EPR absorption, were measured. The results showed that the interactions of electronic spins both with protons (in perylene) and fluorine nuclei (in the counterion) are... 

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