Abstract
The 1D nanostructures of perylenediimides (PDIs) have been readily obtained owing to strong cofacial π-π stacking interactions, which, however, subsequently render PDIs weakly emissive in the solid state. Therefore, organic solid-state lasers based on 1D nanostructures of PDIs have not been achieved yet. Herein, we prepared 1D-nanowires of N,N'-bis(1-ethylpropyl)-2,5,8,11-tetrakis(o-methylphenyl)-perylene-3,4:9,10-tetracarboxylic acid diimide (mp-PDI), which stack into a loosely J-type arrangement. J-aggregation leads to a solid-state photoluminescence (PL) efficiency φ>18 % and the nanowires of mp-PDI exhibit excellent Fabry-Perot (FP) mode laser action.
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