New multifunctional phenanthroimidazole–phosphine oxide hybrids for high-performance red, green and blue electroluminescent devices

Abstract

Two novel fluorescent materials containing phenanthroimidazole/diphenylphosphine oxide possessing bipolar charge-transporting property have been used not only as emitters to fabricate high-performance deep-blue OLEDs, but also as hosts to fabricate highly efficient green and red PhOLEDs.

Atomic interaction of the MEAM type for the study of intermetallics in the Al–U alloy

“…Kassner et al [34] and Wang et al [63] reflected this result in their reported phase diagrams. Other authors [64] did not find any evidence of constitutional defects and claim that perfect stoichiometry is in effect.…”

Controllable molecular configuration for significant improvement of blue OLEDs based on novel twisted anthracene derivatives

“…Notably, when substituted position of phenyl is changed between anthracene and imidazole for p-PABPI and m-PABPI, the efficiency is changed by approximately three times, which results from the higher PL quantum yields of p-PABPI and the significantly improved carrier injection/transport ability of p-PABPI (Fig. S9) [30]. Interestingly, when luminance is up to 1000 cd m À2 , the current efficiency for p-PABPI-based devices still maintain an upward trend.…”

High thermal-stability benzocarbazole derivatives as bipolar host materials for phosphorescent organic light-emitting diodes

“…2. The triplet energy level of DYNS evaluated from the highest-energy vibronic sub-bands [31] was 2.45 eV, which was identical to that of DYSN.…”