High-efficiency pyrene-based blue light emitting diodes: aggregation suppression using a calixarene 3D-scaffold.


An efficient blue light emitting diode based on solution processable pyrene-1,3-alt-calix[4]arene is demonstrated, providing a record current efficiency of 10.5 cd A(-1) in a simple non-doped OLED configuration. Complete suppression of pyrene aggregation in the solid state is achieved by controlling chromophore dispersion using the 1,3-alt-calix[4]arene… (More)
DOI: 10.1039/c2cc30995e

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