A Binaphthyl-Based Conjugated Polymer for Light-Emitting Diodes

Lixin Zheng, R. Craig Urian, Yunqi Liu, Alex K.‐Y. Jen, Lin Pu

Chemistry of Materials · 1999 · 77 citations · 22 references

Concepts

Abstract

A conjugated light-emitting polymer based on the binaphthyl structure was synthesized via the Wittig−Horner condensation reaction. By introducing a twisted, noncoplanar binaphthyl unit, it provides an effective approach for tailoring the spectral characteristics and solubility of the polymer. The polymer has a very high glass transition temperature (Tg) of 225 °C and good solubility in common organic solvents. A single layer light-emitting diode with a configuration of (ITO/polymer/Al) showed a respectable external quantum efficiency of 0.1%.

References

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