High brightness solution-processed OLEDs employing linear, small molecule emitters

Findlay, N. J. and Breig, B. and Forbes, C. and Inigo, A. R. and Kanibolotsky, A. L. and Skabara, P. J. (2016) High brightness solution-processed OLEDs employing linear, small molecule emitters. Journal of Materials Chemistry. C, 4 (17). 3774 - 3780. ISSN 2050-7526 (https://doi.org/10.1039/C5TC03579A)

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Abstract

Two novel linear oligomers that can be solution-processed to form green organic light-emitting diodes (OLEDs) are reported. Each oligomer has a donor-acceptor structure, incorporating a benzothiadiazole core with bifluorene arms attached at the 4- and 7-positions. Further electron donor behaviour is inferred from a terminal triphenylamine unit in Green 2. The resulting solution-processed OLEDs exhibited excellent performance, with a maximum luminance of 20 388 cd m-2 recorded for Green 2.