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Aggregation induced emission of diketopyrrolopyrrole (DPP) derivatives for highly fluorescent red films

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Abstract

A large number of diketopyrrolopyrrole (DPP) compounds showing aggregation induced emission (AIE) have been reported in the past few years. However, although DPP compounds exhibited AIE and excellent luminescence properties, their luminescence properties in solid or film states were not much focused on. Here we synthesized and characterized a series of DPP compounds with triphenylamine (TPA) moieties to investigate the AIE properties in the solid film state depending on the functional groups (TPA, BTPA, and MTPA) attached to the TPA moieties. T2 and D2 thin films showed excellent fluorescence quantum yields of 31% and 26%, respectively, compared to an M2 thin film (9%). The restriction of an intramolecular rotation process could inhibit the aggregation induced quenching process and play a key role in achieving highly fluorescent molecules in the solid state.

Graphical abstract: Aggregation induced emission of diketopyrrolopyrrole (DPP) derivatives for highly fluorescent red films

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Publication details

The article was received on 14 Sep 2018, accepted on 23 Nov 2018 and first published on 18 Jan 2019


Article type: Paper
DOI: 10.1039/C8PP00403J
Citation: Photochem. Photobiol. Sci., 2019, Advance Article

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    Aggregation induced emission of diketopyrrolopyrrole (DPP) derivatives for highly fluorescent red films

    T. G. Hwang, J. Y. Kim, J. W. Namgoong, J. M. Lee, S. B. Yuk, S. H. Kim and J. P. Kim, Photochem. Photobiol. Sci., 2019, Advance Article , DOI: 10.1039/C8PP00403J

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