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Bay-substituted octaazaperopyrenedioxides as solid-state emitters for strong light-matter coupling

Molecules based on the octaazaperopyrenedioxide (OAPPDO) motif represent a new class of organic emitters with the ability to form amorphous films when processed from solution while retaining their emissive properties. Here, we report the synthesis of bay-functionalized OAPPDO derivatives with thioet...

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Main Authors: Hertzog, Manuel (Author) , Eichelmann, Robert (Author) , Jeudy, Pierre (Author) , Wesp, Tobias (Author) , Ballmann, Joachim (Author) , Settele, Simon (Author) , Sebastian, Finn (Author) , Mischok, Andreas (Author) , Roux, Florian Le (Author) , Tenopala-Carmona, Francisco (Author) , Gather, Malte (Author) , Gade, Lutz H. (Author) , Zaumseil, Jana (Author)
Format: Article (Journal)
Language:English
Published: 24 Jan 2024
In: Journal of materials chemistry. C, Materials for optical and electronic devices
Year: 2024, Volume: 12, Issue: 8, Pages: 2745-2755
ISSN:2050-7534
DOI:10.1039/D3TC04653B
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1039/D3TC04653B
Verlag, kostenfrei, Volltext: https://pubs.rsc.org/en/content/articlelanding/2024/tc/d3tc04653b
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Author Notes:Manuel Hertzog, Robert Eichelmann, Pierre Jeudy, Tobias Wesp, Joachim Ballmann, Simon Settele, Finn L. Sebastian, Andreas Mischok, Florian Le Roux, Francisco Tenopala-Carmona, Malte C. Gather, Lutz H. Gade and Jana Zaumseil
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Summary:Molecules based on the octaazaperopyrenedioxide (OAPPDO) motif represent a new class of organic emitters with the ability to form amorphous films when processed from solution while retaining their emissive properties. Here, we report the synthesis of bay-functionalized OAPPDO derivatives with thioether-substituents, which are structurally characterized by their twisted π-core. The combination of this structural motif with suitable substituents at the chromophore facilitates the deposition of neat and smooth films from solution, in which the molecules remain electronically decoupled, thus drastically reducing non-radiative decay pathways. An analysis of absorption and emission spectra of solutions and spincoated thin films is provided along with details of their structural morphology and thermodynamics. The amorphous thin films display spectroscopic characteristics similar to those of the isolated molecules in solution and exhibit photoluminescence quantum yields up to 17%. The high oscillator strength of smooth films of these OAPPDO derivatives enables their integration in Fabry-Pérot microcavities with high quality factors and the observation of strong light-matter coupling with clear exciton-polariton modes and large coupling strength.
Item Description:Gesehen am 02.04.2025
Physical Description:Online Resource
ISSN:2050-7534
DOI:10.1039/D3TC04653B

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