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Ultranarrowband organic photodiodes (OPDs) are demonstrated for thin film solid state materials composed of tightly packed dipolar merocyanine dyes. For these dyes the packing arrangement can be controlled by the bulkiness of the donor substituent, leading to either strong H‐ or strong J‐type exciton coupling in the interesting blue (H‐aggregate) and NIR (J‐aggregate) spectral ranges. Both bands are...
In article number 1805058, Frank Würthner and co‐workers report on the controlled supramolecular packing of highly dipolar merocyanine dyes to fabricate ultra‐narrowband photodiodes. By strategic design of the substituents' sterics, the nine investigated merocyanine dyes afford distinct different optical signatures in the solid state, giving rise to either H‐ or J‐aggregate properties with ultra‐narrow...
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