A new kind of polyfluorene containing oxadiazole as the side chain was synthesized. The introduction of oxadiazole moiety as more bulky group prevents the aggregation and reduces the crystallinity of the polymers. Efficient intramolecular energy transfer from oxadiazole moiety to the conjugated backbone has been realized
leading to 70% improvement of photoluminescence quantum efficiency of the designed polymers. Compared with PAF
the PFOXD exhibits significant improvement in electroluminescence properties
with luminous efficiency of 0.8 cd/A and maximum luminance of 1800 cd/m2.
Abstract
A new kind of polyfluorene containing oxadiazole as the side chain was synthesized. The introduction of oxadiazole moiety as more bulky group prevents the aggregation and reduces the crystallinity of the polymers. Efficient intramolecular energy transfer from oxadiazole moiety to the conjugated backbone has been realized
leading to 70% improvement of photoluminescence quantum efficiency of the designed polymers. Compared with PAF
the PFOXD exhibits significant improvement in electroluminescence properties
with luminous efficiency of 0.8 cd/A and maximum luminance of 1800 cd/m2.
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