A solution-processable triphenylamine-fluorene host for exciplex based white phosphorescent organic light-emitting diodes

Zhaokang Fan, Nengquan Li, Yiwu Quan, Qingmin Chen, Shanghui Ye, Quli Fan, Wei Huang, Hui Xu

Journal of Materials Chemistry C · 2014 · 19 citations · 51 references

Concepts

Abstract

A novel triphenylamine-fluorene oligomer with macro-spirocyclic structure was designed and prepared as a host for exciplex based white phosphorescent organic light-emitting diodes (white PhOLEDs), in which only iridium(III)bis(4,6-(difluorophenyl)pyridinato-N,C2)picolinate (FIrpic) was employed as the dopant. The device exhibited a comparatively high performance with a maximum luminance and current efficiency of 14 213 cd m−2 and 22.6 cd A−1, respectively.

References

51