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Peripherical thioester functionalization induces J-aggregation in bithiophene-DPP films and nanoparticles
Angela Punzi1, Davide Blasi1, Alessandra Operamolla2
1Department of Chemistry, Università degli Studi di Bari "Aldo Moro" Via Orabona 4 70125 Bari Italy gianlucamaria.farinola@uniba.it.
RSC Advances
|April 15, 2022
Summary
Thioacetylation of bithiophene-DPP molecules creates near-infrared emitting J-aggregates in solid states. This modification impacts organic nanoparticle properties, including morphology and stability.
Area of Science:
- Organic electronics
- Materials science
- Supramolecular chemistry
Background:
- Bithiophene-dicyanopyrrolidine (DPP) molecules are key components in organic electronics.
- Controlling solid-state packing is crucial for optimizing optoelectronic properties.
Purpose of the Study:
- To investigate the effect of peripheral thioacetylation on bithiophene-DPP solid-state properties.
- To explore the formation of near-infrared (NIR) emitting J-aggregates.
- To analyze the morphology and stability of resulting organic nanoparticles.
Main Methods:
- Chemical modification of bithiophene-DPP via thioacetylation.
- Fabrication of organic films and nanoparticles.
- Characterization of solid-state properties, morphology, and stability using spectroscopic and microscopic techniques.
Main Results:
- Peripheral thioacetylation successfully induced the formation of J-aggregates.
- These J-aggregates exhibited near-infrared (NIR) emission.
- The modification influenced the morphology and enhanced the kinetic and thermal stability of organic nanoparticles.
Conclusions:
- Thioacetylation is an effective strategy to tune the solid-state properties of bithiophene-DPP materials.
- This approach enables the development of novel NIR-emitting organic materials for potential applications in electronics and photonics.
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