Univerzita PardubiceFakulta chemicko- technologická

Univerzita Pardubice

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Publikace detail

NIR Solid-State Emission with Triphenylamine Derivatives.

Autoři: Štrojsa Jakub | Valuš Jakub | Tydlitát Jiří

Rok: 2025

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	NIR Solid-State Emission with Triphenylamine Derivatives.	Triphenylamine (TPA) derivatives represent a class of compounds with attractive optoelectronic properties. Owing to their structure, one to three acceptor units can be attached to achieve a D–π–A character. Some of these molecules are capable of photoemission that can reach into the near-infrared (NIR) region. Such compounds hold significant potential for applications in biomedicine, particularly in areas such as tissue bioimaging, where NIR-emissive materials offer advantages like deeper tissue penetration and reduced autofluorescence. Based on our previous experience with push-pull TPA derivatives two TPA-based compounds bearing different peripheral aromatic units were synthesized. The molecular design is based on a donor–acceptor architecture consisting of a central TPA unit (donor), nitro group (acceptor), and additional two weak acceptors represented by fused aromatic rings, namely anthracene or pyrene. Photophysical studies revealed that both derivatives exhibit fluorescence in toluene solution as well as in the solid state, with emission located in the NIR region for pyrene derivative. This indicates the potential for NIR emission related applications.	Triphenylamine; fluorescence; NIR emission